Can anyone check my coding?

Projects Programming
1

So my circuit includes L298P motor shield, arduino uno r3, 2 dc motor , bluethooth module and a Lipo battery
apparently I cant run my motor with the coding i have right now
I wanted to control the dc motor with the bluethooth module
Appreciate in advance

#include <SoftwareSerial.h>
char val;
int MOTOR1_DIRECTION_PIN = 12;
int M1 = 9;
int MOTOR2_DIRECTION_PIN = 13;
int M2 = 8;
int MOTOR1_SPEED_PIN = 10;
int MOTOR2_SPEED_PIN = 11;
int spd= 255;

void setup() {
pinMode(MOTOR1_DIRECTION_PIN,OUTPUT);
pinMode(MOTOR2_DIRECTION_PIN,OUTPUT);
pinMode(M1,OUTPUT);
pinMode(M2,OUTPUT);
pinMode(MOTOR1_SPEED_PIN, OUTPUT);
pinMode(MOTOR2_SPEED_PIN, OUTPUT);
}

void loop() {
if(Serial.available()>0){
val = Serial.read();
Serial.println(val);
}
if(val=='F'){
digitalWrite(MOTOR1_DIRECTION_PIN,LOW);
digitalWrite(M1,HIGH);
analogWrite(MOTOR1_SPEED_PIN, spd);
digitalWrite(MOTOR2_DIRECTION_PIN,HIGH);
digitalWrite(M2,LOW);
analogWrite(MOTOR2_SPEED_PIN, spd);

}
else if(val=='B'){
  digitalWrite(MOTOR1_DIRECTION_PIN,HIGH);
  digitalWrite(M1,LOW);
  analogWrite(MOTOR1_SPEED_PIN, spd);
  digitalWrite(MOTOR2_DIRECTION_PIN,LOW);
  digitalWrite(M2,HIGH);
  analogWrite(MOTOR2_SPEED_PIN, spd);
}
else if(val=='L'){
  digitalWrite(MOTOR1_DIRECTION_PIN,HIGH);
  digitalWrite(M1,LOW);
  analogWrite(MOTOR1_SPEED_PIN, spd);
  digitalWrite(MOTOR2_DIRECTION_PIN,HIGH);
  digitalWrite(M2,LOW);
  analogWrite(MOTOR2_SPEED_PIN, spd);
}
else if(val=='R'){
  digitalWrite(MOTOR1_DIRECTION_PIN,LOW);
  digitalWrite(M1,HIGH);
  analogWrite(MOTOR1_SPEED_PIN, spd);
  digitalWrite(MOTOR2_DIRECTION_PIN,LOW);
  digitalWrite(M2,HIGH);
  analogWrite(MOTOR2_SPEED_PIN, spd);
}
else if(val=='S'){
  digitalWrite(MOTOR1_DIRECTION_PIN,LOW);
  digitalWrite(M1,LOW);
  analogWrite(MOTOR1_SPEED_PIN, 0);
  digitalWrite(MOTOR2_DIRECTION_PIN,LOW);
  digitalWrite(M2,LOW);
  analogWrite(MOTOR2_SPEED_PIN, 0);
}

}

2 
void loop() {
    if(Serial.available()>0){
        val = Serial.read();
        Serial.println(val);
    }
    if(val=='F'){

have to hurry. but one problem is processing val regardless of receiving a new input

might consifer

void loop() {
    if (  ! Serial.available()>0) 
        return

    val = Serial.read();
    Serial.println(val);

    if(val=='F'){

while MOTOR_DIRECTION_PIN is certainly descriptive, it's too long. what about PinDIrM1?

and what are M1 and M2?

3

M1 and M2 is the counterclockwise rotation ? from what I saw in some explanation of using L298P motor driver.

4

I've tried it still doesnt work

5

I don't see SoftwareSerial being configured or used at all. I also don't see Serial being configured. What pins are the Bluetooth module connected to?!?

6

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