ESP8266 Community Forum

- Mon Oct 02, 2017 6:04 am #70525 Greetings Guys,

I was going through ESP 12F pinout diagram and was wondering weather i can use 2 uart on ESP 12F ? Currently i am using TXD and RXD, but is there any possibility of 2nd UART on ESP 12F ? If i get another UART with RX only working, will also suffice my requirements.

Any information or suggestions will be of great help.

- Mon Oct 02, 2017 8:20 am #70531 The RX of the second serial port is connected to the flash chip so it is not available. TX can be used but with limitations. Most people will use a software serial library for extra serial.