ESP is not responding. HELP

[PeteKnight]

@jerral the issue that @MIKEVICE was having was caused by him overwriting the factory AT firmware on his ESP-01.
If you’ve done this then the solution will be the same - re-flash your ESP-01 with an AT .bin file using a flasher utility.

If that’s not the cause of your issue then I’d suggest that you 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…

You might also want to thing about using the new Blynk.NCP solution instead…

Any Arduino + ESP8266 (AT firmware) to be deprecated?

[image] We’ve been working on this cool thing called Blynk.NCP, which is now available for a set of Dual-MCU boards. In fact, this gives us a way to stop using BlynkESP8266_Lib altogether. Instead, with the next Blynk Library v1.3.0, you should be able to replace the AT firmware of your ESP8266/ESP32 with the Blynk.NCP firmware, then upload a simple sketch to your Arduino and use the full power of Blynk.Edgent + even more cool features baked into the NCP. Let me know your thoughts about this…

Pete.