Koa Choi

Buy RFID RC522 RF Sensor Module Kit Door Access Control Kits UNO R3 MEGA Nano Beginner Starter Geekcreit for Arduino - products that work with official Arduino boards Note: Kits Not Contain Arduino Board. SG90 Server Motor Max Stall Torque (4.8V): 17.5oz /in, If door handle torque is more than it, please don't choose this kit, or replace the SG90 with a better MG90S, which provides more torque!!! Package includes: 1 x RFID RC522 RF Sensor Module 1 x SG90 Servo Motor 1 x 9v Battery Holder 1 x Breadboard 20 x Dupont Cable RFID RC522 RF Sensor Module Kit Door Access Control Kits UNO R3 MEGA Nano Beginner Starter Geekcreit for Arduino - products that work with official Arduino boards Buy Now

Buy OpenMV4 Mini H7 Cam Smart Camera Image Processing Visual Color Line Inspection QR Code Lens parameters: Model: OV7725 Focal length: 2.8mm Viewing angle: 25 ° Maximum frame rate: 15fps SXGA Photosensitive array: 640x480 Application Resolution MINI OPENMV4 (time-consuming) Color recognition QVGA 5ms QR code recognition QVGA 60ms QQVGA 45ms Circle recognition QQVGA 91ms Face recognition HQVGA 12ms Package includes: 1 x OpenMV4 mini motherboard + OV7725 camera module 1 x USB cable 2 x Pins 1 x Jumper cap OpenMV4 Mini H7 Cam Smart Camera Image Processing Visual Color Line Inspection QR Code Buy Now

Buy 3pcs USB Digispark Kickstarter ATTINY85 For Micro USB Development Board OPEN-SMART for Arduino - products that work with official for Arduino boards null Description:   About the USB Digispark is an Attiny85 based microcontroller development board similar to the for Arduino line, only cheaper, smaller, and a bit less powerful. With a whole host of shields to extend its functionality and the ability to use the familiar for Arduino IDE the Digispark is a great way to jump into electronics, or perfect for when an for Arduino is too big or too much.   Feature:   1. Support for Arduino IDE 1.0+ (OSX/Win/Linux). 2. Power via USB or External Source - 5v or 7-15v (12v or less recommended, automatic selection). 3. On-board 500ma 5V Regulator. 4. Built-in USB 5. 6 I/O Pins (2 are used for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB) 6. 8k Flash Memory (about 6k after bootloader) 7. I2C and SPI (via USI) 8. PWM on

Get Xiaomi ZAJIA Automatic Sense Infrared Induction Water Saving Device For Kitchen Bathroom Sink Faucet null Xiaomi ZAJIA Automatic Sense Infrared Induction Water Saving Device For Kitchen Bathroom Sink Faucet   Features: 1. Upgrade double sensor for faucet, two sets of sensing areas, two water modes, 0.25 second fast induction. 2. Drains water inductively by IR, reducing touch pollution. 3. Bottom sensor for short-term water needs - When the sensor enters the bottom sensing area (within a limited distance of 10 cm), the water began to flow out. When the sensor leaves, Water stops flowing out. 4. Side sensor meets water storage requirements - When the sensor enters the side sensing area (within a limited distance of 5 cm), the water began to flow out. The current lasts for three minutes, and the water remains flow out even if the sensory object leaves. If the sensor enters the side sensing area again during the water flow process, the water can be stopped at any time. 5. First-class w

Get ESP8285 Infrared Receiving and Transmitting WiFi Remote Control Switch Module Development Learning Board null Note: When power is supplied, please check 5V and GND carefully. The circuit has no reverse connection protection, and the wrong connection may burn the chip. When programming the program, IO0 and GND must be short-circuited, and the module needs to be powered on again. After programming, disconnect IO0 and GND and power on again to run the program normally. Connect with TTL downloader: GND--GND 5V--5V RX--TX TX--RX Package includes: 1 x Board ESP8285 Infrared Receiving and Transmitting WiFi Remote Control Switch Module Development Learning Board See detail