ESP-01 ESP8266WiFi module Connect to Arduino Mega

[1jdebruyn]

Hi All, I am desperately looking for help.
I sent data, mostly "0" and "1" from a ESP32S3 Touch screen to a ESP-01 ESP8266 WIFI Module and then to a Arduino Mega. I can see the data on the Mega Serial.print but no matter what I do it does not run my motors. It seems like there is no connections between the received data and end code.

ESP8266_v2_working_29_11_24.ino (2.4 KB)

MotorTest_29_11_24.ino (4.0 KB)

[horace]

in loop() you start by reading Serial1 and printing it

void loop() {

    if (Serial1.available()) {
    // Read data from ESP-01S and forward to Serial Monitor
    Serial.write(Serial1.read());
    }

but you don't do anything with the data read

[1jdebruyn]

Thanks for the reply, Would you mind to give me an example of how to use it to run the motor please.

[sterretje]

Store what you read in a variable and use that variable

void loop()
{
  char ch = 0;
  if (Serial1.available())
  {
    // Read data from ESP-01S
    ch = Serial1.read();
    // and forward to Serial Monitor
    Serial.write(ch);

    // do something with ch here
  }

[1jdebruyn]

The data I receive is "Received Value_StringUP: 1" and values "0" when not pressed on transmitter.
Is the following what you mean to do?

void loop()
{
  char Value_StringUP = 0;
  if (Serial1.available())
  {
    // Read data from ESP-01S
    Value_StringUP = Serial1.read();
    // and forward to Serial Monitor
    Serial.write(Value_StringUP);

    // do something with ch here
  }

[sterretje]

Kind off

Because you're receiving multiple characters from the other side, I suggest that you study Robin's Serial Input Basics - updated.