ESP8266 Community Forum

I too fell into this ditch and pretty much concluded that I stomped over the AT command set with the program that was downloaded by the Arduino IDE.

I've been sponging the enormous amount of confusing information on the ESP8266 but really need to know how to get my AT command set back. Lots of documentation, but nothing on this mini-board version.
http://www.amazon.com/Gikfun-NodeMcu-In ... 66+nodemcu

1. Documentation asks for the size of flash - I can't find the info for this board.

2. Is NodeMCU instead of AT firmware ? or do they go together.

Any pointers to some easy user guide for dummies that know a little something.

martinayotte wrote:As I said, uploading an Arduino sketch or any other firmware, it won't respond to any AT commands anymore since the AT firmware is gone.

Try adding some serial communication in your sketch :

Code: Select allvoid setup() {
  Serial.begin(115200);
}
void loop () {
  Serial.println("Hello from ESP !");
}