USB TTL Dat

  • Green = TX
  • White = Rx
  • Red = VCC
  • Black = GND

Product links

  • PL2303 - https://www.electrodragon.com/product/pl2303ta-usb-ttl-usb-serial-cable-win-88-1-compatible/

Use case

for ESP32 or ESP8266 : TXD -> RXD, RXD -> TXD, 5V -> 5V, GND -> GND. setup IO0 to GND to enter into programming mode

troubleshooting checklist

reverse TX RX in case wrong wiring of communication

software com-monitor-dat

other interface