I'm using Serial monitor to control motors

[nicholasgod]

I have the code for a H bridge and the code to use serial but i dont know how to combine them so like if i send FORWARD to serial the motors will rotate. here is my serial code:

void setup(){
  Serial.begin(9600);
}

void loop(){
  //check to see if anything is available in the serial recive buffer
  while (Serial.available() > 0)
  {
  // create a place to hold the incomeing message
  static char message[MAX_MESSAGE_LENGTH];
  static unsigned int message_pos = 0;
  //Read the next avalible byte in the serial buffer
  char inByte = Serial.read();
  //Message comeing in (check not terminarteing char)
  if (inByte != '\n' &&(message_pos < MAX_MESSAGE_LENGTH - 1))
  {
    message[message_pos] = inByte;
    message_pos++;
  }
  else 
  {
  message[message_pos] = '\0';
  Serial.println(message);
  message_pos = 0;
  }
  
  }
  }



  

[groundFungus]

What Arduino board?

What motor driver do you have and how is it connected?

Can you post a schematic or wiring diagram?

It is much easier to work with single letter commands ('f' for forward) than whole words.

[gcjr]

you didn't post any code to control the motors

look this over
fill in the code to control the motors

a case for handling digits could be added to set a numeric value to control speed

Serial.readBytesUntil() can be used to read a multi-character string

void back    () { Serial.println ("back"); }
void forward () { Serial.println ("forward"); }
void left    () { Serial.println ("left"); }
void stop    () { Serial.println ("stop"); }
void right   () { Serial.println ("right"); }

void loop ()
{
    if (Serial.available() > 0) {
        char c = Serial.read ();

        switch (c) {
        case 'b':
            back ();
            break;
        case 'f':
            forward ();
            break;
        case 'l':
            left ();
            break;
        case 's':
            stop ();
            break;
        case 'r':
            right ();
            break;
        default:
            break;
        }
    }
}


void setup(){
    Serial.begin(9600);
}

[nicholasgod]

thank you. i was using l29N dual H bridge so thank you. i will put my code in to it THANK YOU SO MUCH