I am using ESP01 as a microcontroller that retrieves information from Firebase and sends them over serial to an Arduino Uno for other uses. I am not using NODEMcu since it has few analog pins and ESP01 is the only option available for me at this time.

Can the GPIO 0 and GPIO 2 pins available in the ESP01 be used as a serial communication pins when defined with SoftwareSerial library?

I want to keep the serial from the existing TX and RX for debugging and testing.

  • 1
    – Juraj
    Sep 30, 2020 at 7:37
  • Check your other post I answered it there. The ESP01 has 2 serial channels.
    – Gil
    Sep 30, 2020 at 20:04
  • I am also interested in your reply. Please give a reference to your other post.
    – PyNZ
    Oct 15, 2021 at 11:08


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