Arduino Nano R3 CH340G Compatible Board

Arduino Nano R3 Compatible Board with CH340G – ATmega328P-AU (SMD)

This compact Arduino Nano R3 Compatible Board is built around the ATmega328P-AU microcontroller and includes the CH340G USB-to-serial chip for reliable and cost-effective USB communication. Fully compatible with the official Arduino Nano, this board offers the same functionality in a smaller, breadboard-friendly form factor—ideal for embedded projects, wearables, prototyping, and space-constrained designs.

It features 22 digital I/O pins, 8 analog input pins, 6 PWM outputs, and operates at 16MHz clock speed. The board automatically switches between USB power and an external source, offering flexibility in powering your project.

🔧 Key Features:

• Microcontroller: ATmega328P-AU (SMD)

• USB Chipset: CH340G (USB to Serial)

• Operating Voltage: 5V

• Input Voltage (recommended): 7V – 12V

• Clock Speed: 16 MHz

• Digital I/O Pins: 22 (6 PWM outputs)

• Analog Input Pins: 8

• Flash Memory: 32 KB (2 KB used by bootloader)

• SRAM: 2 KB

• EEPROM: 1 KB

• Max Current Per I/O Pin: 40 mA

• Mini-B USB port (cable not included)

⚙️ Additional Features:

• Breadboard friendly design (DIP style with 0.1” spacing)

• Onboard 5V regulator and automatic power switching

• LEDs for Power (Blue), TX (Green), RX (Red), and L (Orange)

• +5V to AREF jumper for reference voltage

• ICSP header for direct programming via ISP

• Manual reset switch

• Supports USB power, external power (5V–12V), and 9V battery input

• Compatible with Arduino IDE and libraries

📦 Package Includes:

• 1 × Arduino Nano R3 Compatible Board with CH340G