ESP Part 2 : Communicate directly to ESP8266 using Serial Monitor

In this tutorial, we will be looking at how to communicate with ESP8266 directly using Serial Monitor from Arduino IDE.

Use the below connection to setup your ESP8266.

• ESP VCC connect Arduino 3.3V

• ESP GND connect Arduino GND

• ESP TX connect Arduino TX Pin 2

• ESP RX connect Arduino RX Pin 3

It is important to note that TX and RX connection should be disconnected when uploading code.

Upload the below code into Arduino :

void setup(){
}
    
void loop(){
}

Once uploaded, you can insert any AT command in the Serial Monitor to directly communicate to ESP8266.

Refer examples below :

For more detailed instruction, feel free to check out my YouTube video below :