{"product_id":"uno-r3-ch340g-atmega328p-board-arduino-compatible","title":"Uno R3 CH340G ATmega328P Board - Arduino Compatible","description":"\u003ch1\u003eUno R3 CH340G ATmega328P Development Board – Compatible with Arduino\u003c\/h1\u003e\u003cp\u003eThe Uno R3 CH340G ATmega328P development board is an Arduino-compatible microcontroller board based on the ATmega328P chip. It features a CH340G USB-to-serial converter, providing reliable USB connectivity and easy programming via the Arduino IDE. Ideal for prototyping and embedded projects, this board includes 14 digital I\/O pins, 6 analog inputs, and a 16 MHz crystal oscillator.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicrocontroller\u003c\/td\u003e\n\u003ctd\u003eATmega328P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB-to-Serial\u003c\/td\u003e\n\u003ctd\u003eCH340G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital I\/O Pins\u003c\/td\u003e\n\u003ctd\u003e14 (6 PWM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Input Pins\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClock Speed\u003c\/td\u003e\n\u003ctd\u003e16 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kit-animated-weather-station-display\"\u003eArduino-based weather station using DHT22 sensor and LCD display\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eMotor control shield for robotics with L298N driver\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kit-bluetooth-home-automation-kit-with-arduino-nano-plus-flex-sensors\"\u003eHome automation system with relay modules and Bluetooth\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eDIY game controller with joystick and buttons\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThis board works seamlessly with the Arduino IDE (select “Arduino Uno” as the board). It is compatible with most Arduino Uno shields and operates at 5V logic, making it suitable for sensors like ultrasonic range finders, temperature sensors, and common modules. For 3.3V sensors, use the onboard 3.3V pin with level shifting if necessary.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eConnect the board to your computer using a USB Type-A to Type-B cable (not included). For external power, use a 7–12V DC adapter via the barrel jack, ensuring proper polarity. Always share a common ground when interfacing with other circuits.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino IDE?\u003c\/summary\u003e\u003cp\u003eYes, it is fully compatible. After installing the CH340 driver, the board will appear as a COM port, and you can select “Arduino Uno” in the IDE.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes this board come with a USB cable?\u003c\/summary\u003e\u003cp\u003eNo, this product is sold without a USB cable. You will need a standard USB A-to-B cable (often used for printers) to connect it to your computer.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I power this board with a 9V battery?\u003c\/summary\u003e\u003cp\u003eYes, a 9V battery connected to the VIN pin or barrel jack will power the board, but ensure it is regulated if needed for stable operation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53444947837293,"sku":"CDN-0086","price":230.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_c9360bf3-c550-4b39-9181-2952fc199cef.jpg?v=1781512156","url":"https:\/\/compoden.com\/products\/uno-r3-ch340g-atmega328p-board-arduino-compatible","provider":"Compoden","version":"1.0","type":"link"}