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
programming for ESP32 or ESP8266 :
- TXD -> RXD
- RXD -> TXD
- 5V -> 5V
- GND -> GND.
Booting Mode select
Hold down IO0 button, and connect power supply to enter into flash mode
do NOT Hold down IO0 button, and connect power supply to enter into normal mode
- please note for ESP32-C3-dat, the programming mode select pin is (button) IO9
Programming Wiring
- for NWI1126-dat
Confirm selected Mode
The COM port monitor used here is com-monitor-dat
troubleshooting checklist
reverse TX RX in case wrong wiring of communication
software com-monitor-dat
other interface