ESP8266 Community Forum

Posted: **Fri Jan 06, 2017 2:36 pm**

Hi, I've heard that the TX and RX pins can be used as GPIO pins but im not exactly sure how to do this. I own an ESP8266-12e NodeMCU v2 board. Also, after using it as GPIOs how do u get it back to normal as Serial pins?

I also noticed that there are 3 TXD pins (TXD0, TXD1 and TXD2) but only 2 RXD pins (RXD0 and RXD2). Where is the RXD1 pin? And why is it not given in the pin breakout?

Thank you to everyone!

Posted: **Fri Jan 06, 2017 8:24 pm**

Same question here, using ESP-01

Posted: **Sat Jan 07, 2017 6:37 pm**

Hi, just checking back... Does anyone know how to do this?

ESP8266 Community Forum

Using Serial Tx and RX pins as GPIOs

Using Serial Tx and RX pins as GPIOs

Re: Using Serial Tx and RX pins as GPIOs

Re: Using Serial Tx and RX pins as GPIOs