Development Boards

Product Details MCP2515 CAN Bus Module TJA1050 Transceiver Interface Driver SPI Protocol for MCU's This CAN Bus Module based on the CAN bus controller MCP2515 and CAN transceiver TJA1050. With this module, you will easy to control any CAN Bus device by SPI interface with your MCU, such as Arduino UNO and so on. MCP2515 is a stand-alone Controller Area Network (CAN) controller that implements the CAN specification, Version 2.0B. It is capable of transmitting and receiving both standard and extended data and remote frames. The MCP2515 has two acceptance masks and six acceptance filters that are used to filter out unwanted messages, thereby reducing the host MCU’s overhead. The MCP2515 interfaces with microcontrollers (MCUs) via an industry standard Serial Peripheral Interface (SPI). The TJA1050 is the interface between the Controller Area Network (CAN) protocol controller and the physical bus. The device provides differential transmit capability to the bus and differential receive capability to the CAN controller. Features: Support CAN V2.0B Communication rate up to 1Mb/S Working Voltage: 5V Working Current: 5mA Interface: SPI Package List: 1 x CAN Module MCP2515

Product Details Dupont cable is also called Jumper Wire cables. They are low cost and used to connect hardware such as sensors, Arduino boards and breadboards together. Dupont cable includes Male to Male, Male to Female, Female to Female cable. You can buy it according to which two devices you want to interface. This is 20CM Dupont Wire Color Jumper Cable, 2.54mm 1P-1P Female to Female 40PCS. A very Flexible and easily detachable cable to the no. of wires according to your requirement. It has 1Pin female to the 1pin female header with both ends. Also, it is compatible with 2.54 mm mil spacing pin headers. This cable is an electrical wire or group of them in a cable with a connector or pins at each end, which is normally for interconnecting the components of a breadboard or other prototype or test circuit, internally or with other equipment or components, without soldering. Individual Dupont Cables are fitted by inserting their “end connectors” into the slots provided in a breadboard, the header connector of a circuit board, or a piece of test equipment. Mostly it is useful with Orange Pi, Banana Pi, Raspberry Pi, Arduino, and other mini pc and development board. It is very useful in the PCB project, pc motherboard, as well as Breadboard connections. Additionally, it allows you to plug and unplug easily for prototyping and can be used over and over again.

Product Details 40P color DuPont line Length: 20cm Compatible with 2.54mm spacing pin headers 40pcs chromatic male to male color jump wire High quality and in good working condition Durable and reusable Easy to install and use

Product Details Micro USB Nano 3.0 With the bootloader compatible Nano controller for arduino CH340 USB driver 16Mhz ATMEGA328P CH340G Replace FT232RL 8 analog inputs ports:A0 ~ A7 14 Digital input / output ports:TX,RX,D2 ~ D13 6 PWM ports:D3, D5, D6, D9, D10, D11 1 pairs of TTL level serial transceiver ports RX / TX Using Atmel Atmega328P-AU MCU There is bootloader installed in it Support USB download and Power

Product Details NUCLEO-F411RE Key Features STM32 microcontroller with LQFP64 package STM32F411RET6 ( 512K FLASH ) Two types of extension resources Arduino Uno Revision 3 connectivity STMicroelectronics Morpho extension pin headers for full access to all STM32 I/Os mbed-enabled (mbed.org) On-board ST-LINK/V2-1 debugger/programmer with SWD connector selection-mode switch to use the kit as a standalone ST-LINK/V2-1 Flexible board power supply USB VBUS or external source(3.3 V, 5 V, 7 - 12 V) Power management access point Three LEDs USB communication (LD1), user LED (LD2), power LED (LD3) Two push buttons: USER and RESET USB re-enumeration capability: three different interfaces supported on USB Virtual Com port Mass storage Debug port Comprehensive free software HAL library including a variety of software examples Supported by wide choice of Integrated Development Environments (IDEs) including IAR, Keil, GCC-based IDEs

Product Details What’s new? We already have Voice Recognition module V2. It supports 15 commands in all and only 5 commands at the same time. On V2, voice commands are separated into 3 groups while you training it. And only one group (5 commands) could to be imported into Recognizer. It means only 5 voice commands are effective at the same time. On V3, voice commands are stored in one large group like a library. Any 7 voice commands in the library could be imported into recognizer. It means 7 commands are effective at the same time. Parameter Voltage: 4.5-5.5V Current: <40mA Digital Interface: 5V TTL level for UART interface and GPIO Analog Interface: 3.5mm mono-channel microphone connector + microphone pin interface Recognition accuracy: 99% (under ideal environment) Feature Support maximum 80 voice commands, with each voice 1500ms (one or two words speaking) Maximum 7 voice commands effective at same time Arduino library is supplied Easy Control: UART/GPIO User-control General Pin Output

Product Details Circuit board parameters: Circuit board product voltage DV 5V Current 300mA Power 2W Frequency 108KHz, fixed frequency single-chip microcomputer Driver board size: length 35×width 20×height 17mm (there will be slight errors) Strong versatility, large amount of fog, stable performance, the chip has an automatic timing shutdown function (4 hours of continuous work will automatically shut down protection, if you need to turn on again, press the power on again). 5V USB power supply mode, can be powered by usb charging cable. Atomizing film parameters The net diameter of the atomized steel sheet is 16mm, the outer diameter of the silicone ring is 20mm, and the wire length is 8cm. Product voltage DV 5V, current 300mA, power 2W, frequency 108KHz, hole number 740, hole diameter 5um The microporous atomized sheet produced by us is coated with a special glaze protective layer on the surface of the ceramic sheet, which is resistant to acid and alkali and prevents the silver layer from being corroded and oxidized by the liquid.

Product Details Super sound quality, onboard 2W mono amplifier (5V power supply up to 3W) directly connected to the speaker (recommended with 4 ohm 3W speaker), 3.5mm gold-plated headphone jack can be connected to headphones or external o. With Micro-USB power supply interface, it can be powered by mobile power supply or USB charger through the mobile phone data cable. It can also use 3.7V lithium battery and USB 5V power supply. Support TF card (mobile phone storage card), U disk playback mode;There is no need for welding with horn terminal, which is convenient for wiring;Modular design is easy to modify. product description:1. Support MP3 format, auto play when power on, red LED indicator is updated when playing;2. Support U disk (tested 32G), TF card (tested 16G) playback mode; power on default TF card mode, if there is no TF card automatically jump to U disk mode, and both devices are installed, you can manually Set the playback mode, please refer to the key operation instructions for details. 3. The buttons can adjust the up and down track switching, volume +-, pause / play, mode switching, please see the button operation instructions for details;4. You can press the button to set the "single / full song" cycle, the default is the full song cycle at power-on, press the "Repeat" key to change the cycle mode Key operation instructions "Prev / V--" key: "Short press" is to switch "previous" song, "long press" is "decreasing volume" "Next / v ++" key: "Short press" is to switch "Next" song, "Long press" is "Volume increasing" "P / P / Mode" key: "Short press" for "play / pause" switch, "long press" for U disk, TF card "mode" selection "Repeat" key: "Short press", for "single / full song" cycle switching (no long press function) Product specifications Power supply range: 3.7 ~ 5.5V Exquisite double-layer board design, large area copper plating, stable and reliable. colour: blue Material: PCB size: 45 * 36mm Package Contents : 1 * mp3 decoding module Note : 1. "Long press" time is about 2S 2. If you use U disk mode, 5V power supply is recommended, some U disks do not support 3.7V power supply. Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

Product Details ESP8266 ESP-12F WIFI Wireless Module 1 Channel Relay Shield OverCurrent Protection Wi-Fi Network Relay Module 10A DC 7-30V. Features : With ESP8266 Wifi module,4-layers board design. Input overvoltage protection, input with TVS, when voltage exceeds 33V, automatic protection will operate. Input overcurrent protection. 220V 10A relay, one normally open, one normally closed. One way optocoupler isolation input, TVS input protection. High-current terminals. One output status indicator, one input status indicator. More safe with relays PCB pin anti-climb design. Access control server via TCP CLIENT mode Via HTTP protocol control Specifications: Input voltage :DC 7-30V

Product Details Nano V3.0 Shield board. The Arduino Nano is small and compact - with Nano V3.0 Prototype Shield will make it great again! Many sensors, modules or motors can be connected to the Nano now - place the Nano and you are ready to go. 14 I/O-Pins and 8 Analogue-Pins 1 Current Input 6 PWM Pins 3.3 V Output Voltage

Product Details Voltage Current Power Meter Measuring Range Simultaneous display of voltage and current Voltage Measurement Range DC 0-100V Current Measurement Range 0-10A Power Measurement Range 0-1000W Voltage Error Range ±1%(Adjustable) Current Error Range ±1%(Adjustable) Power Error Range ±1%(Adjustable) Refresh Rate 300ms/Times Display Method HTN LCD 3 Rows of 3 Digits Supply Voltage DC 7-12V Working Current <15mA Working Temperature -10-60 oC

Product Details KL261 Fingerprint Control Board Module DC5.5-15V Low Power Consumption Relay Output Admin/User Funtion For Access Control KL261Technical Parameters Power supply: DC 5.5-15V, >500mA Standby current: 25uA(DC12V) Peak current: 200mA(DC12V) Fingerprint capacity: 100 pieces (Admin Fingerprint: 20 pieces, User Fingerprint: 80 pieces) Output: Relay KL261 is designed for low power consumption, the power supply is DC5.5-15V. It have admin and user fingerprint. Have three relay mode:jog mode, self-locking mode, ignition mode. KL261 Operation Instruction 1.Register Administrator Fingerprint: Long press the SET button,release finger when the fingerprint module shows purple indicator light and flash fast,put the same admin finger with multiple times in fingerprint collection area until hearing music means fingerprint register successful. Fingerprint can be registered continuously and it can register 20 pieces administrator fingerprint; if no need adding fingerprint more, waiting a few seconds to exit. If the administrator is fully registered,it will automatically exit the administrator registration state after hear “DiDiDi”. It will start register user fingerprint if press SET button again. 2.Register User Fingerprint: Press the administrator fingerprint until shows blue indicator light and hear the music,means can add user fingerprint. Put the same user finger with multiple times in fingerprint collection area until hearing music means fingerprint register successful.Fingerprint can be registered continuously when system in register state; if no need adding fingerprint more, waiting a few seconds. 3.Delete User Fingerprint: Press the administrator fingerprint until shows red indicator light and hear “DiDiDi” beep and music,means user fingerprints are deleted. 4.Jog Mode Relay Time Setting: Long press the SET button,release finger when hear “DiDi” beep and the fingerprint module shows yellow indicator light and flash fast. Then short press the SET button, each press increases by 0.5 seconds, increasing from 0. The Max setting time is 4 hours. 5.Self-locking Mode: Long press the SET button,release finger when hear “DiDiDi” beep and the fingerprint module shows cyan indicator light and flash fast. In this mode, relay closed when fingerprint passed, relay will be released when pass fingerprint again. 6.Ignition Mode: Long press the SET button,release finger when hear “DiDiDiDi” beep and the fingerprint module shows green indicator light and flash fast. In this mode, relay closed when fingerprint passed, relay will be released when removing finger. 7.Back to factory default: Long press the SET button,until hear “DiDiDiDiDiDi” beep, the fingerprint module shows red indicator light and flash fast,hear music and the module flash green and white light,means initialization operation successful. Note : Any fingerprint can be used in the factory state, but the function will be invalid after the fingerprint is registered. Files Provide Free Reference SDK Files for Arduino, Android,.Net,Windows and so on. Provide User Manual

Product Details This pafforted board has a size of: 12*18 cm The thickness: 1.6mm Pitch: 2.54mm Type is single sided Plating Through Hole

product details Type is single sided Plating: This pafforted board has a size of: 9*15 cm The thickness: 1.6mm Pitch: 2.54mm Through Hole

Product Details This CC3D Atom is about half the size of the regular OpenPilot CC3D, but with the same functionality. Now you can get all the great features and functionality of the full sized CC3D flight controller board but at about 1/2 the size! Description : Item name: CC3D Atom/Mini CC3D/CC3D EVO Size (board only): 30mm x 17mm Size (in case): 22 x 38 x 12mm WxLxH Features : The CC3D provides a crisp feel when flying tricopters, quads, hexas, octocopters, and even fixed wing planes. Powerful STM32 32-bit micro-controller running at 90MIPs with 128KB Flash and 20KB RAM. 3-axis high-performance MEMs gyros and 3-axis high-performance MEMs accelerometer. 4 layer PCB for superior electrical noise reduction and flight performance. Software support for Windows, Mac and Linux. Direct high speed USB support with no drivers required. Spektrum satellite receiver support. Futaba S-BUS hardware support. Innovative Flexi-port technology for superior port flexibility. 4Mbits on-board EEPROM for configuration storage. This OpenPilot CC3D Atom board also includes a high quality, protective case. Bent pin layout for easy connectors.

Product Details RP2040-Zero RP2040 for Pi Microcontroller Development Board Module Dual-core M0+ Processor 2MB Flash Product Features: The RP2040 microcontroller chip is designed by Pi It is powered by a dual-core ARM M0+ processor and runs at up to 133MHz flexible clock It comes with 264KB ofSRAM and 2MB of on-chip Flash Real stamp hole design, can be directly welded into the self-designed base plate USB1.1 host and device support Supports low power sleep and hibernation modes Can be identified by USB as mass storage for support type download program 29 GPI0 pins of RP2040 (20 can be led by row pins, the rest can only be led by welding) 2 SPIs, 2 12Cs, 2 UART, 4 12-bit ADC, 16 controllable PWM channels Accurate on-chip clock and timer Temperature sensor On-chip accelerated floating point library Eight programmable I/0 (PI0) state machines for custom peripheral support

Product Details Just as small. Five times as fast. At the heart of Raspberry Pi Zero 2 W is RP3A0, a custom-built system-in-package designed by Raspberry Pi in the UK. With a quad-core 64-bit ARM Cortex-A53 processor clocked at 1GHz and 512MB of SDRAM, Zero 2 is up to five times as fast as the original Raspberry Pi Zero. Wireless LAN is built in to a shielded enclosure with improved RF compliance, giving you more flexibility when designing with Raspberry Pi Zero 2 W. All in the same tiny 65mm × 30mm form factor. Applications : Raspberry Pi Zero 2 W is perfect for a range of smart home applications and other IoT projects. From security cameras to Bluetooth speakers, Zero 2 W has the tiny form factor and impressive power that make it an ideal computer for your projects. Connections : Like the original Raspberry Pi Zero, Raspberry Pi Zero 2 W features a mini HDMI port, a micro USB port, and a micro USB power port. Raspberry Pi offers a wide range of high-quality, low-cost cables and adapters to get you up and running on your Raspberry Pi Zero 2 W. Specification 1GHz quad-core 64-bit Arm Cortex-A53 CPU 512MB SDRAM 2.4GHz 802.11 b/g/n wireless LAN Bluetooth 4.2, Bluetooth Low Energy (BLE), onboard antenna Mini HDMI® port and micro USB On-The-Go (OTG) port microSD card slot CSI-2 camera connector HAT-compatible 40-pin header footprint (unpopulated) H.264, MPEG-4 decode (1080p30); H.264 encode (1080p30) OpenGL ES 1.1, 2.0 graphics Micro USB power Composite video and reset pins via solder test points 65mm x 30mm

Product Details RF-NANO is a 2.4G wireless development board developed by emakefun company, integrating the nrf24L01+ wireless chip based on the official standard Arduino Nano V3.0 motherboard. Its size and pins are fully compatible with the standard Nano V3.0 development board, directly compatible with theRF24 open source library,can be set for power consumption, transmission rate, channel, etc., and supports Mixly, Mblock5, Magicblock visual programming. The onboard antenna is optimized for transmission distance up to 30m, with a onboard IPEX patch antenna socket, and an external antenna can achieve a transmission distance of up to 100m. Specification : ●Microcontroller ATmega328P ●Nrf24L01+ 2.4G wireless ●Architecture AVR ●Operating Voltage 5 V ●Flash Memory 32 KB of which 2 KB used by bootloader ●SRAM 2 KB ●Clock Speed 16 MHz ●Analog I/O Pins 8 ●EEPROM 1 KB ●Per I/O pin DC Current 40 mA (I/O Pins) ●Input Voltage:7-12 V ●Digital I/O Pins:22 ●PWM Output:6 ●Power Consumption 19 mA ●PCB Size 48 x 18mm

Products Details Raspberry Pi 4 Model B is the latest product in the popular Raspberry Pi range of computers. It offers ground-breaking increases in processor speed, multimedia performance, memory, and connectivity compared to the prior-generation Raspberry Pi 3 Model B+,while retaining backwards compatibility and similar power consumption. For the end user, Raspberry Pi 4 Model B provides desktop performance comparable to entry-level x86 PC systems. Pi 4 B is upgraded with Latest High-Performance Quad-Core 64-bit Broadcom 2711, Cortex A72 processor clocked at 1.5GHz speed.Which is designed to use 20% less power or offer 90% greater performance than its old version. Hardware upgrade on Pi4 developed for more faster performance not only the loading time with all new 1GB/2GB and 4GB LPDDR4 SDRAM variants but also in connectivity with Dual-band 2.4GHz and 5GHz, 802.11 b/g/n/ac wireless LAN and PoE capability via a separate PoE HAT. Addition to it USB 3.0,improve the transfer speed by 10x than USB 2.0 to provide you significantly faster true Gigabit internet experience. Now you can enjoy 4K video using Pi 4 as video performance on Pi 4 B is also upgraded with on Board Dual-display support at resolutions up to 4K via a pair of micro-HDMI ports, which supports H 265 Decode (4Kp60), H.264, and MPEG-4 decode (1080p60). With the latest Bluetooth 5.0 technology make IoT solution better with 2 x Speed, 4 x Range and 8 x Data transfer speed, having such a faster and long distance connectivity, you will experience peripheral’s Bluetooth connectivity on the next level than before. Furthermore, One big needful upgrade that Pi foundation has made in Raspberry Pi 4 B is Type-C USB Port from which Pi can take up to 3A current to operate, and hence now Pi 4 can provide more power to onboard chips and peripherals interfaced as well. Though the Pi 4 has type C USB port for 5V 3A input power capacity, new Hardware on Pi 4 even required less power than the previous versions therefore old power adapter can provide plenty of power to the chip, Ethernet, and any USB add-ons you plug in on board. You need not to worry about power adapter as it will also work great with your old 5V 3A power supply Adapter, All you need is micro-USB B (F) to Type C (M) Adapter which we made available for you.

product details Enhanced and improved, the Arduino UNO R4 Minima is armed with a powerful 32-bit microcontroller courtesy of Renesas. Brace yourself for, increased processing power, expanded memory, and a whole new level of on-board peripherals. The best part? Compatibility with existing shields and accessories remains intact, and there's no need to make any changes to the standard form factor or 5 V operating voltage. Joining the Arduino ecosystem, the UNO R4 is a trusty addition suitable for both beginners and seasoned electronics enthusiasts. Whether you're just starting out or looking to push the boundaries of your projects, this robust board delivers reliable performance every time. Features ●Microcontroller:RA4M1 ●14Pins Digital I/O ●6Pins Analog input ●1pin DAC ●6Pins PWM ●Communication:1*UART, 1xI2C, 1xSPI, 1xCAN Bus ●Power Circuit operating voltage5 V Input voltage (VIN)6-24 V DC Current per I/O Pin8 mA ●Clock speed Main core:48 MHz ●Memory RA4M1:256 kB Flash, 32 kB RAM ●Dimensions:68.85 mm*53.34 mm

product details The extension board can be used for carving machine and 3D printer driver expansion board, there are 4 slots for stepping motor driver,it can not into the motor drive 4 road.And every step motor only need two IO interfaces, that is to say, 6pc IO interfaces can be manage three stepper motors well, it's very convenient. Note: When inserting the A4988 module, must be careful not to insert opposite. Stepper motor wiring as follows: 2A, 2B is a group (red, green), 1A, 1B is a group (blue, yellow).If you want to change direction, can be change the position of one group , for example 2A, 2B mutually exchanged.

Product Details BBC Microbit For Kids DIY Development Board - BBC Micro Bit V2.2 Go Kit Includes: 30cm USB cable, 2 AAA batteries, 1 battery holder The latest revision of the BBC micro:bit is designed to be completely familiar to anyone who has used the original device. It’s the same size, shape, looks very similar, and works in the same way. Every program that could run on a micro:bit version 1 can be re-built to run on the latest revision. The editors will support both versions simultaneously for features common to both boards. The latest revision builds upon the current micro:bit experience by refining the board and adding widely requested sound making and sensing capabilities. Amongst the micro:bit features, ‘sound’ is in a unique position of being already present in the editors, but not on the board, so it is already familiar to teachers, yet the speaker and microphone on the board are transformative in the kinds of applications people can build. Features: * On board speaker * MEMs Microphone with LED indicator * Touch sensitive logo * Built-in sleep/off mode that means the board can be powered-down with batteries connected * Discrete regulator that can supply up to 200mA of current to external accessories Refinements: * Notched edge connector. To make it easier to connect things like crocodile clips and conductive thread * Power LED indicator. In addition to the USB activity indicator, a power LED shows whether the micro:bit is powered on or off * Exposed, gold-plated antenna. To easily identify the radio/Bluetooth component Hardware Specs: * Target MCU, Nordic Semiconductor nRF52833 (64MHz Cortex-M4F, 512kB Flash, 128kB RAM) * Interface MCU: NXP KL27Z, 256kB Flash (128kB reserved for future enhancement), 32kB RAM * Motion sensor: ST LSM303 * MEMS microphone: Knowles SPU0410LR5H-QB-7 MEMS * Power consumption 300mA (with 100mA for the board itself and up to 200mA for accessories)

Product Details ESP-12E WeMos D1 UNOs R3 CH340 CH340G WiFi Development Board Based ESP8266 Shield Smart Electronic For Arduinos Compatible IDE The WeMos D1 is a ESP8266 WiFi based board that uses the Arduino layout with a operating voltage of 3.3V. As the documentation of this board online can be a little confusing, the purpose of this tutorial is to combine and simplify the steps needed to setup this board for development. With that, let’s proceed on with the specifications of the board. This board is compatible with the Arduino IDE and with NodeMCU. SPECIFICATIONS: - Microcontroller: ESP8266EX - Operating Voltage: 3.3V - Digital I/O Pins: 11 (all I/O pins have interrupt/pwm/I2C/one-wire capability, except for D0) - Analog Input Pins: 1 - Flash Memory: 4MB - On-Board Switching Power Supply: - Input Voltage Range: 9V to 12V - Output: 5V at 1A Max - Board Dimensions: 68.6mm x 53.4mm (2.701" x 2.102") / Long x Wide

Prodiuct Details Simple Expansion Board NANO IO Shield V1.O

Product Details TTGO T-SIM7000G ESP32-WROVER-B Wireless communication Development Board Description The LILYGO T-SIM7000G is an ESP32 development board with a SIM7000G chip. This adds GPS, GPRS, LTE CAT-M1, and NB-IoT protocols to your board. This means that with this board you can send SMS, get location and time using GPS, and connect it to the internet using a SIM card data plan. This board doesn’t support phone calls. Hardware Specifications - Main chip: ESP32 - Module: ESP32-WROVER-B,SIM7000G - Interface:USB,SD Card,Solar Input interface - Flash Memory: 4M Flash / 8M PSRAM - Button: Reset,Power switch - USB to TTL: CP2104 - Car Clock: 40MHz - SIM Card Size: Nano SIM Card - SIM Antenna - GPS Antenna - Operating Temperature Range: -40-85 degrees -Product Size: 111mm * 37mm * 20mm - Product Weight: 50g Power Specifications - Working Voltage: 5v input - Solar input voltage range：4.4-6v - Working Curent: About 200mA - Charging Current: 780mA - Battery Model: 18650 - Battery Holder Model: 18650 battery holder - JST Connector: 2pin 2mm - USB: TYPE-C 3.0 Wi-Fi - Standard ：FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC - Protocol ：802.11 b/g/n(802.11n，speed up to150Mbps)A-MPDU and A-MSDU polymerization，support 0.4μS Protection interval - Frequency ：range 2.4GHz~2.5GHz(2400M~2483.5M) - Transmit Power ：22dBm - Communication distance : 300m Bluetooth - Protocol meet Bluetooth : v4.2BR/EDR and BLE standard - Radio Frequency : with -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH - Audio Frequency : CVSD&SBC audio frequency Software Specification - Wi-Fi Mode : Station/SoftAP/SoftAP+Station/P2P - Security Mechanism : WPA/WPA2/WPA2-Enterprise/WPS - Encryption Type : AES/RSA/ECC/SHA - Firmware Upgrade :UART download/OTA（Through network/host to download and write firmware） - Software Development : Support cloud server development /SDK for user firmware development - Networking Protocol : IPv4、IPv6、SSL、TCP/UDP/HTTP/FTP/MQTT - User Configuration : AT + Instruction set, cloud server, android/iOSapp - OS : FreeRTOS

Product Details This tiny little board does all of the neat-o tricks that you're familiar with: 4 channels of 10-bit ADC, 5 PWM pins, 12 DIOs as well as hardware serial connections Rx and Tx. Running at 16MHz and 5V, this board will remind you a lot of your other favorite for Arduino-compatible boards but this little guy can go just about anywhere. There is a voltage regulator on board so it can accept voltage up to 12VDC. If you're supplying unregulated power to the board, be sure to connect to the "RAW" pin on not VCC. This latest revision corrects the silk error from the last version of the board so that pin 14 is correctly labeled. We've also added a PTC fuse and diode protection to the power circuit and corrected the RX and TX LED circuit. Features: ●ATMega 32U4 running at 5V/16MHz ●Supported under for Arduino IDE v1.0.1 ●On-Board micro-USB connector for programming ●4 x 10-bit ADC pins ●12 x Digital I/Os (5 are PWM capable) ●Rx and Tx Hardware Serial Connections

Product Details Better than EZP2019 High-Speed USB SPI Programmer+12 Adapters. Support 24 25 26 93 95 EEPROM 25 Flash Bios Chip EZP2023. BIOS Programmer Field of application: This programmer can read and write the bios chips of Router, LCD, Car, DVD, TV, PC, hard disk, etc. EZP2023 Difference from EZP2019: 1. The read and write speed is faster. It only takes 3 seconds to read EN25T80 and 9 seconds to write EN25T80. It is currently the fastest BIOS chip programmer on the market. 2. Automatically identify chip model (mainly for 25 series chips, 24/25/93/25/95 EEPROM needs to be manually selected). 3. Automatically detect whether the chip is placed; 4. The chip supply voltage is automatically selected. 5. It fully supports 25 SPI FLASH, 24 EEPROM, 25 EEPROM, 93 EEPROM, 95 EEPROM and other series of memory chips. Features: 1. USB 2.0 interface, the speed is 12Mbps. 2. The speed of reading and writing is fast. 3. Auto detect chip models. 4. Auto select power voltage. 5. Support 25 SPI FLASH, 24 EEPROM, 25 EEPROM, 93 EEPROM,95 EEPROM. etc. 6. Small shape. 7. Windows2000,Windows XP, Windows Vista, Win7,Win8,WIN10.

Product Details Raspberry Pi Pico W With Wireless WiFi Module Dual-Core ARM Cortex MO+RP2040 Microcontroller for Micro Python Raspberry Pi

Product Details VC-02-Kit AI Intelligent Offline Speech Module Offline Recognition Speech Control Module Development Board VC-02-Kit -The VC-02-Kit is a development board designed for the VC-02 module. - The development board integrates CH340C serial port to USB chip, providing basic debugging interface and USB upgrade interface, design of wake up light and cold and cooling lamp, provides status indication and control instructions, and easy to debug the simple control function. -VC-02 is a low-cost pure offline speech recognition module. The module uses the voice chip US516P6 launched by Unisound, and continuously optimizes and innovates algorithms in speech recognition technology. The offline recognition algorithm and chip architecture are deeply integrated to provide customers with ultra-low-cost offline speech recognition solutions. It can be widely and quickly applied to smart home, all kinds of smart small household appliances, 86 boxes, toys, lamps and other products that need voice control. - The US516P6 chip uses a 32-bit RSIC architecture core and incorporates a DSP instruction set specifically for signal processing and speech recognition, an FPU arithmetic unit that supports floating-point operations, and an FFT accelerator. -VC-02 supports offline identification of 150 local instructions, RTOS lightweight system, rich peripheral interfaces, and simple and friendly custom tools. 1.Characteristic ◼ Kernel - 32bit RISC core, running at 240MHz - Support DSP instruction set and FPU floating point operation unit - FFT Accelerator: Support up to 1024-point complex FFT/IFFT operations, or 2048-point real FFT/IFFT operations - Unisound customized speech algorithm operator ◼ Storage - Built-in 242KB high-speed SRAM - Built-in 2MB FLASH ◼ Audio input and output - Flexible configuration supports 1.8/2.8/3.3V IO - Support for a 1 analog Mic input, SNR≥94db - Support dual-channel DAC output - Support for both Chinese and English voice commands ◼ Power supply and clock - Support 5V power input - Built-in 5V to 3.3V, 3.3V to 1.2V LDO to power the chip - RC 12MHz clock source and PLL locked loop clock source - Built-in POR (Power on Reset), low voltage detection and watchdog ◼ Peripheral - All GPIOs can be configured as external interrupt input and wake-up source - One full-duplex UART with the maximum rate of 3Mbps - Support I2C DAC PWM and multiple interfaces ◼ SDK - Provides complete RTOS SDK - Support fast and convenient UART, I2C and other control protocol development Serial Port Flashing Kit Serial Port Flashing is the USB flashing method (the module needs an external TTL to USB module to connect to TX1 and RX1), the firmware file name used must be: uni_ app_ _release_ update.bin (Note: "uni app_ release.bin" cannot be used renaming), be sure to use the "build.sh update" command to compile and generate

Product Details ESP32-C3 Development Board ESP32 Super Mini WiFi Blue tooth module Description: If external power supply is needed, simply connect the external power supply+stage to the 5V position and connect the GND to the negative pole. (Supports 3.3-6V power supply). Remember that when connecting to an external power source, USB cannot be connected, and only one can be selected between USB and external power supply. Enter download mode: Press and hold the BOOT button on ESP32C3, then press the RESET button, release the RESET button, and then release the BOOT button. At this time, ESP32C3 will enter download mode. (Every time you connect, you need to re-enter the download mode. Sometimes when you press it once, the unstable port will disconnect, which can be determined by the sound recognized by the port.)

Product Details Advanced CPU TW-131 Coin Selector Comparable Coin Acceptor for Vending Machines Features 1. FRONT ENTRY ELECTRONIC COIN SELECTOR 2. Capable for accepting all worldwide Coins and Tokens 3. Mechanism—Link with coin reject bar , Flush Clean from coin jam 4. CPU coin rolling down speed and timming presetting by directional accept sensors. 5. Invalidate against unusual stay , Reverse Draw, String Skip, Technical Fishing. 6. Select coin based on Diameter, Thickness and Metal content. 7. Switch of Normal Open and Normal Close for signal output of coin validation. 8. 3 ways adjustable triggering Pulse Duration of Timer Switch. 9. VR tuning and sensitivity switch of coin acceptance for eliminating slugs and improper coins. 10.Allows to connect Counter Meter Specification: - Item: TW-131 Coin Acceptor - Coin Diameter: 22~28 mm - Coin Thickness: 1.7~2.2mm - Voltage: DC 12V ±10% - Current: 65mA ±5% - Accuracy rate of identification: 99% - Temperature: -15°C~+75°C - Atmospheric pressure: 86Kpa—106Kpa - Signal Output: Pulse - Pluse Witdth: 20ms/40ms/100ms - Speed: ≤0.6s Application Area: Our coin acceptor widely used in coin kiosk, coin mechanism, coin device, car washing machine, TV, massage chair, cloth dryer, cyber coffee, Laundromat, laundry,computer ,amusement machine , arcade machine etc.

Product Details CH9121 Serial Port to Ethernet Network Module TTL Transmission Module Industrial Microcontroller CH9121 has Built-in TCP/IP protocol stack, which can provides serial data and network data’s two-way penetrate transparent. CH9121 has TCP-Client, TCP-Server and UDP 3 kinds of work mode, supports serial baud rate up to 921600bps, can be easily configured by host PC software. Ethernet Parameters - Number of ports: 1 - Interface standard: RJ45 interface - LAN Ethernet: 10 / 100Mbps - Data cache: 6K bytes - Protection: 2KV electromagnetic isolation - Network protocols: IP, ARP, TCP, UDP, ICMP, IGMP, DCHP and so on Serial Port Parameters - Number of ports: 1 - Interface standard: TTL serial port, 2.54MM pin, 3.3V or 5V level - Baud rate: 300 ~ 921600bps - Data bits: 5,6,7,8,9 - Stop bit: 1,2 bit - Parity: no parity, odd parity, even parity - Flow Control: None - Cache: 2K bytes Supporting Software Parameter configuration: network configuration software, serial AT command Module testing: test software (network, serial one) Basic Parameters - Size 43mmx23mmx14.5mm (length x width x height) - Working voltage DC3.3V / 5V - Operating current 200mA @ 5V - Power consumption 1W - Operating temperature -40 ~ 85 ° C - Storage temperature -55 ~ 125 ° C Pin Description 1. RESET: Factory reset pin, the module power-on detection, active low 2. DIR: RS485 receive, send switch control pin 3. TCPCS: TCP client mode, the port connection status indicator pin, the connection is successful output low 4. RUN: module running status indication pin, input 2Hz square wave 5. GND: Power Ground Pin 6. 3.3V: 3.3V DC power input pin, greater than 200mA, and 5V DC power supply alternatively 7. GND: Power Ground Pin 8. 5V: 5V DC power input pin, greater than 200mA, and 3.3V DC power supply can choose one of two 9. RSTI: reset pin, the internal pull-up, low-effective, can not be vacant 10. CFG: serial port configuration module enable pin, built-in pull-up, low-effective, do not have to be vacant 11. RXD: Serial data receive pin, serial port TTL level, compatible with 3.3V and 5V 12. TXD: serial data transmission pin, serial TTL level, compatible with 3.3V and 5V 13. GND: Power Ground Pin 14. 3.3V: 3.3V DC power input pin, greater than 200mA, and 5V DC power supply alternatively 15. GND: Power Ground Pin 16. 5V: 5V DC power input pin, greater than 200mA, with the optional 3.3V DC power supply can be

Product Details Highly Efficient Propeller CW/CCW For DJI Elf Phantom 2/3/3s/SE 9450 propeller Self -locking Drones Accessories Suitable for DJI Elf 3 propeller Elf 3 Port, 9450 Self -locking 9450 Self -tight Patstel Sub -Plant Accessories Applicable model: Elf 2/3/3S/SE Material: PC 1. High tough material, high aerodynamic efficiency, low power consumption, strong battery life; 2. Classic fast -disassembly design, rotate and tighten, quickly install; 3. A variety of colors for you to choose. Attributes: - black yellow edges, black white edges - Net weight: 26.8g (black), 22.6g (white) - Gross weight: 30.8g (black), 26.6g (white) - Product size: 24.2*3.2cm - Packaging size: 28*7cm - Packing list: propeller (pair) x 1 - Packing method: bag - Product name：Used for Elf 2/3/3S/SE 9450 propeller - Applicable models：For Elf Phantom 2/3/3s/SE

Product details Steering Gear Pan Tilt Two Axis PTZ Ultrasonic Aerial Model FPV Camera Support Accessories. With SG90 type steering gear, plastic gear 9g servo: The rocker arm of the steering gear needs to be cut off a little before installation, and the installation of the steering gear on the base also needs to modify the rocker arm (remove the edge of the round hole, and then put the rocker arm in or trim the steering gear arm)! At present, this kind of PTZ can only be installed with 28*28 camera modules, not 32 or 38 size cameras. (please know that the rudder arm of the steering gear needs to be trimmed.) The 2-axis plastic pan tilt weighs 17 grams, which is suitable for 9g-12g steering gear. It has beautiful appearance, precise manufacture, no virtual position and no shaking. It has a steering gear wire winding clamp. The product is shown in the figure, 4 nylon plastic parts, including screws. Self assembly is required. Product parameters - Applicable servo model: SG90 - Product weight: 17g - Working torque: 1.8kg/cm (4.8V) - Reaction speed: 0.1sec/60degree (4.8V) - Rotation angle: 90 degrees - Working voltage: 4.8V - Working temperature: 0 ℃ - 55 ℃ - Dead band setting: 10us - Gears: Plastic Gears - Pin definition: - Orange - signal - red - VCC - Brown - GND

Product Details An AI enabled board in the shape of the classic Nano board, with all the sensors to start building your next project right away. Overview The Arduino Nano 33 BLE Sense Rev2 is Arduino’s 3.3V AI enabled board in the smallest available form factor with a set of sensors that will allow you without any external hardware to start programming your next project, right away. With the Arduino Nano 33 BLE Sense Rev2, you can: - Build wearable devices that using AI can recognize movements. - Build a room temperature monitoring device that can suggest or modify changes in the thermostat. - Build a gesture or voice recognition device using the microphone or the gesture sensor together with the AI capabilities of the board. - The main feature of this board, besides the complete selection of sensors, is the possibility of running Edge Computing applications (AI) on it using TinyML. Learn how to use the Tensor Flow Lite library following this instructions or learn how to train your board using Edge Impulse. Tech specs - Microcontroller: nRF52840 - Operating Voltage: 3.3V - Input Voltage (limit): 21V - DC Current per I/O Pin: 15 mA - Clock Speed: 64MHz - CPU Flash Memory: 1MB (nRF52840) - SRAM: 256KB (nRF52840) - EEPROM: none - Digital Input / Output Pins: 14 - PWM Pins : all digital pins - UART: 1 -SPI: 1 -I2C: 1 -Analog Input Pins: 8 (ADC 12 bit 200 k samples) -Analog Output Pins: Only through PWM (no DAC) -External Interrupts: all digital pins -LED_BUILTIN: 13 -USB: Native in the nRF52840 Processor -IMU: BMI270 and BMM150 -Microphone: MP34DT06JTR -Gesture, light, proximity, color: APDS9960 -Barometric pressure: LPS22HB -Temperature, humidity: HS3003

product details ATtiny13A ATtiny25 ATtiny45 ATtiny85 Pluggable ATTINY Development Programming Bare Board

product details - 38Pin ESP32 Shield ESP32 Expansion board Breakout Board for ESP32 NodeMCU-32S - Wide compatibility: The breakout board is only suitable for 38PIN narrow ESP32 without mounting holes. Note: Not suitable for ESP-WROOM-32 DevKit V1 version. Please make sure that the pin width of your esp32 board is the same as the pin width of the breakout board. Important note: ESP32 Breakout Board GPIO 1 in 2 is only compatible with 38-pin ESP32S ESP32, which means only for reference asin: B09DPH1KXF and B09DPGMZR9 The module is safe and reliable and can be extended to various applications. The expansion board adopts a two-layer design with a pin connected to both sides. Stable and highly reliable. Provides excellent contacts and stable signal transmission for your esp32 development board. The AITRIP breakout board can expand one GPIO pin of the ESP32 board to two, which is great for you to reuse all the pins and a great tool for your smart home projects. Nice breadboard alternative. The ESP32 breakout board expands one GPIO pin of the esp32 board to two. Great for users to reuse all pins in smart home DIY projects. Excellent ESP32 Breakout Board. Specification: ●Size: 7.8*6.3*1cm ●Printed circuit board material: high-quality FR-4 material ●Printed circuit board layers: 2 layers ●PCB Thickness: 1.6mm ●Pad: Tin Plated ●Note: Just fits the 38-pin ESP32 development board. The reference Asin: B09DPH1KXF and B09DPGMZR9, are not suitable for other versions.

Product Details Wireless Charger pcb Circuit Boards Specification: - Input power: DC 5V 2A - Output: 1A - Charging Efficiency: 75% - Transmission distance: 2-8mm

Product Details Wireless Charger Receiver Circuit Module 5V 1A 5W PCBA Board Coil Universal Wireless Charging Coil for Smart Phone Features: 1. Pure copper coil, high permeabillity, low loss, assuring fast charging. 2. Can charge the battery directly. 3. Charging current is around 5V 1A. 4. Can be directly connected to the phone's motherboard, the phone will display wireless charging. 5. Red is positive and gold is negative. The wire can be bent freely. Specification: - Material: PCB - Product Name: Wireless Charger Receiver Module - Input Power: 5V 1A or 9V 0.5A - Output: Power up to 5W - Charging Efficiency: 75% - Transmission distance: 2-8mm - Charger Applicable Form: Wireless Charger - Executive Standard: Qi Wireless Charging Standard - Product Certification: CE/FCC/ROSH - Board Size: 1.9 * 3.2cm / 0.7 * 1.3in - Copper Coil Size: 4.1 * 2.9cm / 1.6 * 1.4in - Cable Length: 5cm - Weight: approx. 5g NOTE: Wireless charging = transmitter + receiver (both can be charged together) 1: There is a "charger" (ie coil patch): If your phone has a built-in "receiver", or you have already purchased a "receiver" in another home, then you only need to buy a "transmitter"Charging. 2: There is a "generator" (ie the base): If you have already purchased the "transmitter", then you can just recharge by purchasing the "receiver".

Product Details DIY 5V 1500mW 405nm Engraving machine blue violet Laser head Features: ●Professional laser heads have high speed and high stability. ●Bright light blue purple, easy to position when engraving. ●Adjustable laser head, easy to adjust, ensuring good engraving quality, high efficiency. Specification: ●Material: metal ●Light color: blue purple ●Power: 1500 mW ●Wavelength: 405nm ●Working voltage: 5V ●Size: 4.2 * 2.4 * 2 cm ●Weight: 48g Packing list: Laser head*1 screwdriver*1 screw*4 Remember to use Laser safety gasses!! Suitable for DIY customers: This laser is mainly used for personal use and DIY manual work, preferably installed on DIY 5V 1500mW toy small laser engraving machine. If you have a higher request or want to use for this laser experiment, we don't recommend it. Carved material (important): Wood (rod), plastic (Card, mobile phone case), paper (greeting card), rubber (chapter), etc., can not engrave metal, can not engrave strong reflective and light-transmitting materials. The official data of the laser head is 5,000 hours, and the overload can shorten the life of the laser head. It is recommended that the laser head is resting for 5 minutes, do not work continuous, so that this is conducive to extending laser heads.

Product Details Usb Android Tv Stick Box De Android Tvstick Smart 4k HD Video Tv Streaming Stick 4K Max Product Overviews Selling Point 1. CPU Allwinner H313 Quad Core ARM A53 2. GPU G31 OPenGL3.2 3. RAM + ROM 2GB+8GB/1GB+8GB/2GB+16GB 4. OS Version Android 10.0 5. Video Support video decoding up to 4K60fps 8K*4K 23fps 6. Wi-Fi 802.11 b/g/n 2.4G+5G 7. USB Port :USB Host Port,USB type C 8. HD:HD/4K*2K UHD Output, HD 2.1 9. Packing List: TV Stick x1 User manual x1 ;USB cable x1 HD cable x1 IR Cable x1 BT voice IR Remote x1 10. Appliactions: Hotel, Home, Office, Hospital, Industry, Universal Commercial Displayer 11.Support DLNA/Mirocast Function , Support Email, office suit , many apps etc. Product Feature: CPU: Allwinner H313 Quad Core ARM A53 GPU: G31 OPenGL3.2 RAM: 2GB RAM ROM: 16GB WiFi : 802.11 b/g/n 2.4G+5G HD: HD/4K*2K UHD Output, HD 2.1 USB Port: USB Host Port,USB type C IR: IR Receiver/Remote Receiver Connect Power: USB 5V/1.5A, LED indicator,Working:Blue; Standby:Red OS: Android 10.0 OS, Moudle : Plastic : Black & Red Color Software: OS : Android 10.0 Video : Support video decoding up to 4K60fps - VP9 Profile-2 up to 4K30fps - H.265 Main10L5.1 up to 4K60fps - AVS2 JiZhun 10bit Profile up to 4K60fps - H.264 BP/MP/HPL4.2 up to 4K30fps - H.263 BP up to 1080P60fps - MPEG-4 SP/ASPL5 up to 1080P60fps - MPEG-2 MP/HL up to 1080P60fps - MPEG-1 MP/HL up to 1080P60fps - Xvid up to 1080P60fps - Sorenson Spark up to 1080P60fps - VP8 up to 1080P60fps - AVS/AVS+ JiZhun Profile up to 1080P60fps - WMV9/VC1 SP/MP/AP up to 1080P60fps - JPEG HFIF file format up to 45M PPS Audio: Supports MP3, AAC, WMA, RM, FLAC, Ogg. Image: HD JPEG,BMP,GIF,PNG,TIF Language: English French German Spanish Italian etc multilateral languages Appliactions: Online : Browse all video websites,support Netflix,Hulu,Flixster, Youtube, etc. Apps: Apps download freely form android market,amazon app store etc. Medium: Local Media playback,Support HDD, U Disck ,TF Card .

Product Details Rubber wheel / robot / tracing patrol car accessories smart car tires chassis wheel Features: -The wheels are made of high-strength plastic and the tires are made of black rubber. This diameter is 65mm. -The outer diameter of the tire is 66mm, the inner 51.8mm, the width is 26.6mm, the outer diameter of the inner frame shaft is 13.8, the shaft hole width is 3.66mm, and the shaft hole length is 5.3mm.

Poduct Details DIY 3DOF 3-Axis Metal Robot Mechanical Arm with Gripper Clamp Kit Description: - The robotic claw can bring life to any project. Using just gears and the servo, gripping, grabbing, and even clamping objects can be easily implemented into your project. - This is Full Set DIY 2DOF Metal Robot Mechanical Arm with Gripper Clamp (Not Assembled) Kit. It includes a manipulator claw, aluminum bracket, and accessories like nuts, bolts, etc. - This kit is very useful to make a robotic arm that is used in many applications like move material from one place to another place (Weight does not exceed 500 gm). Features: - 3-DOF manipulator! Vertical arm up and down, back and forth. - U-type robot waist bracket on the arm can be mounted directly on the base in the car or any other desktop platform. - The vehicle type 3-DOF manipulator medium length, back and forth up and down, in which a mechanical claw opening and closing of the steering gear control, two servo control arm up and down back and forth. - This robot is particularly suitable as a vehicle manipulator robot car, grab the ball, catch the car are particularly good, very suitable for their own DIY or robotic smart car racing. - Activities can use 180-degree steering joints.

Product Details - This is an expansion shield for Arduino NANO 328P that provides access to all the IO pins as electronic brick 3-pin interfaces and a nRF24L01 wireless interface. It also supports external power supply of 7-12V. - This shield extends the functionality of Arduino Nano by exposing all the IO pins of 328P to 3-pin/sensor interfaces. It also has external power input terminals that can accept 7-12V input. Additionally, it has a socket and plug for 24 l01 XBee modules and nRF24L01 wireless modules, enabling wireless communication for Arduino Nano. - Nano IO expansion board is a breakout board for Arduino Nano. It connects all the pins to 3-pin interfaces compatible with electronic building blocks, Zigbee XBee modules and nRF24L01 wireless modules. It supports external power conversion from 7 to 12V.

Product Details 250Ml/H Mist Maker Humidifier Fountain Pond Rockery Fishtank Ultrasonic Mini Mist Maker Products Description Voltage: AC100V-240V 50/60Hz Power: 24±1W Workable Deepth: 4-6cm Distc dia: 16mm or 20mm Capacity: 250~350mL/H Power line length: 65~90CM Mist maker line: 135CM Product size: Φ38x24.5mm Warm tips: a. Please use clean water instead of dirty water, and the water can not be hard water. Less calcium. b. Draining the water in the tank if you do not use it for long time. c. Clean the mist module often with soft brush and clean water. d. If the fog is decreasing, we suggest you to replace the mist modules.

Product Details 616 Universal Multi-Coin Acceptor for Vending Machines - High Accuracy Electronic Coin Selector (Commercial-Grade) Programmable Multi Coin Selector Coin Acceptor. Coin Acceptor Specifications: (1) Accept 5 type coin values. (2) Capable for accepting all worldwide Coins and Tokens. (3) Mechanism link with coin reject bar , Flush Clean from coin jam. (4) Select coin based on Diameter, Thickness and Metal content. (5) Switch of Normal Open and Normal Close for signal output of coin validation. (6) 3 ways adjustable triggering Pulse Duration of Timer Switch. (7) VR tuning and sensitivity switch of coin acceptance for eliminating slugs and improper coins. (8) Allows to connect Counter Meter. (9) Easy installation. Product Name: 616 Multi-Value Coin acceptor Identity accuracy rate: 95% Identity speed: 0.6second Operating Voltage: DC+12V±10% Working current: 50mA Moment maximum current: 350mA(less than 0.5s) The diameter of the coin: 15mm~29mm The thickness of the coin: 1.8mm~3.0mm HOW TO USE THE NEW MULTI COIN ACCEPTOR - Before using the coin selector, you have to set it up first. The process of setting up can be divided into two categories; - Configuring the parameters to your liking - Training the coin acceptor to learn the coins you want to detect - The third image above will be of help as you setup the coin acceptor. CONFIGURING PARAMETERS In this process, you tell the coin acceptor how many types of coins you want it to accept, how many coins of each type you want it to train it's self with, how many pulses it should use to represent each coin, and how sensitive it should be while detecting the coins. Connect the 12V pin to 12V power supply and GND to the ground of the power supply To configure these parameters, press the 'ADD' and 'MINUS' buttons at the same time until the LED display show ''A''. At this point, we can now change the parameters. Press the 'SET' button. This will show ''E'' on the display. By using the 'ADD' and 'MINUS' buttons, you can select how many types of coins you want to use. In our case we used two; one hundred shillings and two hundred shillings. The next settings will be specific to the type of coin you are training. After setting the number of coins you want to detect, press the 'SET' button. The display will now show ''H1''. Here you can set how many of the first type of coins (in our case 100shs) you will use to train the coin acceptor. You can use the ADD' and 'MINUS' buttons to choose a value from 15 to 20. These values are shown on the display. When done, press the 'SET' button. This will show ''P1'' on the display. Here, pressing the 'ADD' and 'MINUS' buttons, will change how many pulses you want to represent the first type of coin (100shs). You can send these pulses to a microcontroller to integrate the coin acceptor for further action. After Setting the pulses to represent the coin type, press the 'SET' button. This will now show ''F1''. By pressing the ADD' and 'MINUS' buttons, you can choose the sensitivity of the coin acceptor as it reads the coins. When this is done, if there is another type of coin to train, the you will automatically start to set up the parameters of the next type of coin. In our case, H2,P2, and F2 for the 200shs coin. This will continue until the parameters of all the types of coins you chose have been configured. When this happens, you will see ''0'' on the display. You can now power off and the on the coin acceptor. TRAINING THE COIN ACCEPTOR After configuring the parameters, it's now time to train the coin acceptor Start by pressing the 'SET' button. This will show ''A1'' on the Display. 'A' represents the coin, while '1' represents the type of coin you are training (100shs in our case) Throw the coins of the first type through the coin slot hole. The coin should pass through the hole at the bottom of the coin acceptor. The Display should also show how many times you have thrown the coins. Do this continuously until you have finished the number of coins you chose to use when training the coin acceptor (20 in our case). If you still have more coin types to train (200sh in our case), the display will Automatically change to ''A2'' to indicate that we are now training the second coin. When all the coins have been trained the display will show ''0''. You can now use it as you like.

Product Details 6DOF Aluminium Robot 6 DOF Arm Clamp Claw Mount Kit Mechanical Robotic Arm for Arduino Description: - for Arduino Robot 6 DOF Aluminium Clamp Claw Mount kit - Rotation angle of 180 degrees - Radius of gyration: 355mm - Height: 460cm (holder closed) - Clamp Max open is 55mm - Holder of the widest distance: 98mm - The Kit with servos( In this clamp claw kit, you'd better use MG996R servos for the joint bears larger force, while MG995 servos for joints bears relatively smaller force.) - Color: Silver Package Included: - 5PCS*Multi-functional servo bracket - 4PCS*Long U-type servo bracket - 1PC*L-type servo bracket - 3PCS*U-type robot waist bracket - 4PCS*Miniature Ball Radial Bearing - 1PC*Aluminium Clamp Claw - 1PC*Screw and screw cap set

Prodcut Details B04505 9 in 1 sensor board Multifunction Expansion Board DHT11 LM35 Temperature Humidity For Arduino UNO RGB LED IR Receiver Buzzer Product sellpoints -Ready-to-Use Design: No soldering needed; simply download programs to start experimenting with various modules. - Expandable Interface: Reserves an expansion port for additional modules, enhancing the board's functionality. - Arduino Ultrasonic, Arduino RGB Led, Multifunctional Integration: Combines 9 essential sensors in one board, streamlining - Arduino projects with ease. - Versatile Connectivity: Features an I2C interface and TTL serial port for seamless integration with UNO R3. - Comprehensive Sensor Coverage: Includes temperature, humidity, light, sound, and proximity sensors for diverse applications. Available on Expansion Board: 1. 2-way button module. 2. 2-way LED module. 3. Full Color LED Module. 4. IR receiver module. 5. Brightness sensor module. 6. LM35D temperature sensor module. 7. Passive buzzer module. 8. Rotary potentiometer module. 9. DHT11 temperature and humidity sensor module. 10. One I2C interface (A4 SDA, A5 SCL). 11. One TTL serial port. 12. Two channel digital ports (D7, D8). 13. One channel analog port (A3). 14. Reset button. Feature: - Fully compatible with UNO R3 interfaces - A board integrates various modules function - No soldering, no connection, you can download the program directly to complete the experiment - Set aside expansion port, you can complete other modules experiment

Product Deatils XH-M542 TPA3116D2 digital power amplifier board 100W high power mono audio amplifier module - Product Name: TPA3116D2 Digital Power Amplifier Board - Supply voltage: DC12-26V - Input current: 3A or above - Output power: 100W - Signal to noise ratio: 100dB - Number of channels: Mono channel - Product size: 79 * 54 * 16 (mm)u

Product Details - XH-M190 TPA3116D2 Digital Audio Power Amp 100W *2 -2.0 Stereo Class D HIFI amplifier DC 12V 24V - This is an audio power amplifier board that strengthens low-power, inaudible electronic audio such as the from radio receiver or electric guitar pickup to a level that is strong enough for driving loudspeakers or headphones. Power amplifiers make the audible to listeners. It is the final electronic stage in a typical audio playback chain before the is sent to the loudspeakers and speaker enclosures. Product description: - Power amplifier plate cixin using TI import TPA3116D2 as the core, is the official data single chip 50 w * 2, engineer through data combining his own experience with bridge developed 50 w * 2 dual core technology, theory of up to 100 w * - Because the chip for digital chip is high efficiency can reach more than 90%, so has the advantages of small power calorific value, 12 to 24 v dc power supply recommended above 100 w switching power supply, this plate is a product available, hand can medical power supply and speakers on pure digital music brings a new experience! Product parameters: - Chip selection: TPA3116. - Input power: DC 12-24v. - Output power: 2*100W. - Input resistance: 51K*2. - Output match: 4-8 Ohms - Frequency range: 14-100kz. - Noise ratio: 100db. - Output channel: 2 (left channel + right channel) - Appearance size: 105*65*23mm. - Net weight: 85g.

Product Details Industrial USB To RS485 CH340 Converter Upgrade Converter Compatibility Standard RS-485 Connector Board Module Highlights: • All original chips are used! • Industrial protection: TVS transient suppression protection, electrostatic ESD protection, surge protection, short circuit connection of A and B signal lines and short circuit protection with power supply (short connection without burning) • Transmission distance up to 1200 meters (tested at 9600bps) • Support baud rate 921600, much higher than 115200, higher baud rate for paired mutual transmission • Automatically identify and control the data transmission direction without any handshake signals (such as RTS, DTR, etc.). Themode conversion can be realized without jumper settings, ensuring compliance with existing communication software and interface hardware. • With TXD, RXD indicator Product parameters: 1. Power supply: USB 5V 2. Transmission distance: up to 1200 meters (9600bps) 3. Chip solution: CH340 4. Communication protocol:pure hardware device, not subject to agreement 5. Baud rate: up to 921600bps, supporting mutual transmission to support higher baud rate 6. Protection: TVS transient suppression protection, electrostatic ESD protection, surge protection, short AB signal line and short-circuit protection with power supply (short-circuit without burning) 7. Temperature range: -40 ° C - 80 ° C 8.Provide 5V power supply externally, with fuse current limit 9.Automatically determine and control the data transmission direction, without any handshake signal (such as RTS, DTR, etc.),the mode conversion can be realized without jumper setting, ensuring compliance with existing communication software and interface hardware.

Product Details - ZK-MT21 Digital Power Amplifier Board 2x50W+100W 2.1 Channel Subwoofer AUX 12V 24V Audio Stereo 5.0 Bass Amplifier -ZK-MT21 2x50W+100W 2.1 Channel Subwoofer Digital Power Amplifier Board AUX 12V 24V Audio Stereo Bluetooth-compatible 5.0 Bass Amp for Home Theater Speaker Features: -The Bluetooth-compatible audio power amplifier module has 2.1 channels and the maximum output power is 2X50W+100W. -It has two audio input modes, AUX and Bluetooth-compatible, and a two-in-one power amplifier board. blvetooth-compatible5.0, higher transmission efficiency, longer transmission distance -It has short-circuit protection, over-current, over-heating, and anti-reverse protection to prevent total failure. When an overload occurs, the device reports the fault condition to the processor to protect itself from damage - It adopts copper DC connectors and barrier terminals. It can withstand high current without heating or damaging wires. Classic appearance multi-function main knob. The main knob adopts a rotary encoder that is only used in high-end power amplifiers, which realizes 360-degree stepless tuning and a smooth one-key start and stop. The operation is simple and convenient by long pressing the switch. - With bass, treble, subwoofer frequency and volume control, you can easily adjust the volume and enjoy the music tone you want. It is widely used in shopping malls, home theaters, speakers, etc. Specifications: - Product name: 2.1 channel Bluetooth-compatible audio power amplifier module - Product model: ZK-MT21 - Bluetooth-compatible version: 5.0 (unobstructed, 15 meters) - Input sensitivity: 500mV - Input method: AUX+ Bluetooth-compatible - Number of channels: 2.1 channels - Power amplifier chip: Domestic power amplifier chip - Adapter power supply: above DC12-24V/5A (24V battery pack is not allowed) - Adapted speakers: 20-100W, 4-8Q - Output power: left and right channels <50W; subwoofer <100W - Protection mechanism: Anti-reverse connection, overheating, overcurrent, short circuit protection - Product size: 93mm*90mm*22mm - Product weight: about 130g Notice: The product can be connected with an external antenna, but does not include an antenna and an antenna base, please purchase it separately. Tip: Only when the audio input is enough and the power supply voltage/current is enough, there will be enough output power!!! The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!!! Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifier!!! Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.

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