How to set up Arduino to work with ESP8266 Wi-Fi module?

Question

Arduino

In short: connected the GND and VCC+CH_PD of the module to the GND and 3.3v of the Arduino. TX and RX to 10 and 11.
Here is the code :

#include <SoftwareSerial.h>
SoftwareSerial espSerial(10, 11);
 
const int COM_BAUD = 9600;
 
void setup() {
  espSerial.begin(COM_BAUD);
  Serial.begin(COM_BAUD);
  Serial.println("Setup done");
}
 
void loop() {
  if ( espSerial.available() )
    Serial.write( espSerial.read() );
  if ( Serial.available() )
    espSerial.write( Serial.read());
}

Through the serial port monitor (Arduin IDE), you can give AT commands: AT + RST - reboot, AT + CWLAP - show networks, etc. And how to execute these commands from the Arduino sketch? And yet, the module gets very hot, sometimes it even hurts to hold, what is the reason for this? Which instruction I used: connection: digitrode.ru/computing-devices/mcu_cpu/186-pogodna... theory: tim4dev.com/arduino-esp8266-true-start

Answer 1

And what kind of Arduino? For 5 or 3.3 volts?
For the module also wants 3.3v level signals for tx rx.
It can work for 5, but that's how much ..

Answer 2

It looks like you need to send AT commands to the module via the serial port. And the fact that it heats up is bad ...

Answer 3

So write in the sketch:
espSerial.write(AT+RST);
And the softserial on 10.11 does not support high exchange rates, please note.