Nano CH340 Chip Board Compatible with Arduino (Soldered)

Operating Voltage (logic level): 5V 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)