{"product_id":"nano-r3-ch340-development-board-arduino-compatible-soldered","title":"Nano R3 CH340 Development Board – Arduino Compatible Soldered","description":"\u003ch1\u003eNano R3 CH340 Development Board – Arduino Compatible, Pre-Soldered\u003c\/h1\u003e\u003cp\u003eThe Nano R3 CH340 is a compact, breadboard-friendly development board based on the ATmega328P microcontroller. It features a CH340 USB-to-serial converter and comes with header pins pre-soldered, so you can start prototyping immediately. Ideal for space-constrained projects, wearable tech, and embedded systems.\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\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\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory\u003c\/td\u003e\n\u003ctd\u003e32 KB (2 KB bootloader)\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\/wifi-weather-station-with-esp8266-oled-display-kit\"\u003eMini weather station with DHT11 sensor and OLED display\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eUSB-powered LED mood light with addressable WS2812B strips\u003c\/li\u003e\n\u003cli\u003eBluetooth-controlled robot using HC-05 module and motor driver\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/kit-sd-card-data-logger\"\u003eLow-cost data logger that writes sensor values to microSD card\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThe Nano R3 is fully compatible with the Arduino IDE and most libraries written for Arduino Nano. It works seamlessly with common 5V sensors, actuators, and modules. For 3.3V devices, use a logic level converter.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eThe board uses a micro USB port for power and programming. When connecting external power, ensure the voltage is within 7-12V to the VIN pin, and avoid drawing more than 40mA per I\/O pin to prevent damage.\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, the CH340 driver installs automatically on Windows 10\/11, and the board appears as a standard Arduino Nano in the IDE. Select 'Arduino Nano' and 'ATmega328P (Old Bootloader)' for reliable uploads.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I power it directly via USB?\u003c\/summary\u003e\u003cp\u003eYes, the micro USB port provides 5V to the board. It can also be powered through the VIN pin with 7-12V, or via the 5V pin if regulated.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the maximum current the 5V pin can supply?\u003c\/summary\u003e\u003cp\u003eThe onboard 5V regulator can handle up to 800mA, but total current should be limited to avoid overheating. If you need more, use an external regulated 5V supply.\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":53444962812269,"sku":"CDN-0460","price":210.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_0e09e47c-02ba-4aaa-b5ef-b15ff1851664.jpg?v=1781512587","url":"https:\/\/compoden.com\/products\/nano-r3-ch340-development-board-arduino-compatible-soldered","provider":"Compoden","version":"1.0","type":"link"}