Arduino mega and Esp01

[PeteKnight]

It’s not possible to use the ESP-01 and Arduino in the way you’ve set them up.

The normal way to use this pair together is to run the factory AT firmware on the ESP-01, but this doesn’t allow WiFiManager to be used.

You should read this…

Understanding hardware and software serial ports

I’m still seeing frequent posts, mostly from new members of the forum, who are confused about how to add WiFi or Bluetooth connectivity to devices like the Arduino Uno, Nano or Mega, or from people who are trying to use serial communication with some other type of peripheral. I thought I’d try to put together some guidance on how to do this properly. First things first though – if you’re using a device such as an Uno, Nano or Mega that doesn’t have built-in internet connectivity then you shoul…

Pete.