Specifications:
Operating Voltage (logic level): 5V
With Soldered Connector
8 analog inputs ports: A0 ~ A7
14 Digital input / output ports: TX, RX, D2 ~ D13
1 pair of TTL level serial transceiver ports RX / TX
Using Atmel Atmega328P-AU MCU
There is a bootloader installed in it
Standard 0.1” spacing DIP (breadboard friendly).
Manual reset switch.