The product features a locking position for easy chip replacement.

You can use the FT232 USB to TTL module or the CH340G module for programming. The built-in USB port is intended only for power supply, not for code uploading.

The program, expansion shields, and IDE development environment are compatible with Arduino.

• Microcontrollers: ATmega328P-PU
• Operating voltage: 5V
• Input/output interface logic voltage: 5V
• Operating current: 500mA (max)
• Digital I/O pins: 14 (of which 6 can provide PWM output)
• Analog inputs: 6
• Clock frequency: 16MHz
• Indicator LED for high-speed control, for beginner programmers.
• Power supply indicator LED.
• Bootloader burning interface: ICSP
• Programming interface: GND, 5V, RX, TX, DTR