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Keyestudio CH340 Nano V3 Controller Board Compatible with Arduino
keyestudio nano ch340 controller is a small£¬ complete board based on the ATmega328. It's a open source; Simple I/O platform with 12 Digital I/O Pins (of which 6 provide PWM output)£¬ 8 Analog Input Pins£¬ pin 0 (RX) and 1 (TX) used to receive (RX) and transmit (TX) TTL serial data£¬ a Mini-B USB connection£¬ an ICSP header and a reset button.