I've been trying to do this arduino project of a RC car but after few mins of working not even properly it stopped working so I've come here for help here are names, codes and connections diagram and I've powered it with a 9v battery
Arduino type:UNO R3 open source electronic programming platform
Bluetooth:HC-05
dual H Bridge:L298n
and 2 motors taken from a toy car
int motorLpin1=2;
int motorLpin2=3;
int motorRpin1=4;
int motorRpin2=5;
int motorLpwm=10;
int motorRpwm=11;
int motorSpeed=125;
int turn=50;
void setup() {
Serial.begin(9600);
Serial.flush();
pinMode(motorLpin1,OUTPUT);
pinMode(motorLpin2,OUTPUT);
pinMode(motorRpin1,OUTPUT);
pinMode(motorRpin2,OUTPUT);
pinMode(motorLpwm,OUTPUT);
pinMode(motorRpwm,OUTPUT);
}
void loop() {
String input="";
while(Serial.available()){
input+=(char)Serial.read();
delay(5);
}
if(input=="n"){
stp();
}
else if(input=="F"){
fwd();
}
else if(input=="R"){
rev();
}
else if(input.indexOf("TL")>-1){
lft();
}
else if(input.indexOf("TR")>-1){
rght();
}
else if(input!=""){
motorSpeed=input.toInt();
}
}
void fwd(){
analogWrite(motorLpwm,motorSpeed);
analogWrite(motorRpwm,motorSpeed);
digitalWrite(motorLpin1,1);
digitalWrite(motorLpin2,0);
digitalWrite(motorRpin1,1);
digitalWrite(motorRpin2,0);
}
void rev(){
analogWrite(motorLpwm,motorSpeed);
analogWrite(motorRpwm,motorSpeed);
digitalWrite(motorLpin1,0);
digitalWrite(motorLpin2,1);
digitalWrite(motorRpin1,0);
digitalWrite(motorRpin2,1);
}
void lft(){
analogWrite(motorLpwm,motorSpeed-turn);
analogWrite(motorRpwm,motorSpeed+turn);
digitalWrite(motorLpin1,0);
digitalWrite(motorLpin2,1);
digitalWrite(motorRpin1,1);
digitalWrite(motorRpin2,0);
}
void rght(){
analogWrite(motorLpwm,motorSpeed+turn);
analogWrite(motorRpwm,motorSpeed-turn);
digitalWrite(motorLpin1,1);
digitalWrite(motorLpin2,0);
digitalWrite(motorRpin1,0);
digitalWrite(motorRpin2,1);
}
void stp(){
analogWrite(motorLpwm,0);
analogWrite(motorRpwm,0);
digitalWrite(motorLpin1,1);
digitalWrite(motorLpin2,1);
digitalWrite(motorRpin1,1);
digitalWrite(motorRpin2,1);
}
and I've attached Connections diagram
if you can help but need more info contact me at 6362681007,
Thank You
