Specifications
Core Technical Specifications:
- Microcontroller: Atmel ATmega328P-AU
- USB to Serial Chip: CH340G
- Operating Voltage (Logic Level): 5V
- Input Voltage (Recommended): 7-12V
- Input Voltage (Limits): 6-20V
- Digital I/O Pins: 14 (6 of which provide PWM output)
- Analog Input Pins: 8 (A0-A7)
- Flash Memory: 32 KB (ATmega328), with 0.5 or 2 KB used by the bootloader
- SRAM: 2 KB
- EEPROM: 1 KB
- Clock Speed: 16 MHz
- DC Current per I/O Pin: 40 mA
Physical Characteristics:
- Dimensions: ~43 mm x 18 mm
- Weight: ~5-6 g
- Connector: Mini-USB
- Pin Header: Unsoldered or Soldered
Key Features:
- Compatibility: Fully compatible with Arduino IDE and Arduino Nano 3.0 pinout.
- Drivers: Requires the CH340G driver to be installed on the computer to recognize the USB connection.
- Power Supply: Can be powered via the Mini-USB connection, 6-20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27).
- Communication: Supports I2C (A4/A5), SPI, and USART (TX/RX) protocols.