About this item

The Arduino Nano R3 with CH340 chip (unsoldered) is a compact and versatile development board compatible with the Arduino platform, ideal for projects requiring a small footprint. Powered by the ATmega328P-AU microcontroller, it offers 14 digital I/O pins, 8 analog inputs, and operates at 5V logic levels. The board features a mini-USB port for programming and serial communication, and supports both USB and external power sources (7–12V). It comes with a bootloader pre-installed, allowing for easy programming via the Arduino IDE. The unsoldered version provides flexibility for custom configurations, enabling users to solder headers or connectors as needed. Please note that the CH340 USB-to-serial chip may require additional drivers on some systems. This board is suitable for various applications, including robotics, IoT projects, and embedded systems, offering a balance between performance and size.