SUPPLIES AND PARTS
- Arduino UNO
- HC-05 Bluetooth Module
- SparkFun Dual H-Bridge motor drivers L298
- Pimoroni Maker Essentials – Micro-motors & Grippy Wheels
- Jumper wires (generic)
- Li-Ion Battery 1000mAh
- LED (generic)
CONTENT AND ONLINE SERVICES
Arduino Bluetooth RC Car
Assembly
I wanted to build and test it as soon as I had all the pieces. However, a chassis was missing. I searched the area and discovered a DVD case. Although it’s not the ideal option, for the moment it works. I attached 4 motors to the chassis using cable ties. I utilised a rechargeable 7.4V 1800mAh Li-ion battery from a walkie-talkie as the power source.
Code
char t;
void setup() {
pinMode(13,OUTPUT); //left motors forward
pinMode(12,OUTPUT); //left motors reverse
pinMode(11,OUTPUT); //right motors forward
pinMode(10,OUTPUT); //right motors reverse
pinMode(9,OUTPUT); //Led
Serial.begin(9600);
}
void loop() {
if(Serial.available()){
t = Serial.read();
Serial.println(t);
}
if(t == 'F'){ //move forward(all motors rotate in forward direction)
digitalWrite(13,HIGH);
digitalWrite(11,HIGH);
}
else if(t == 'B'){ //move reverse (all motors rotate in reverse direction)
digitalWrite(12,HIGH);
digitalWrite(10,HIGH);
}
else if(t == 'L'){ //turn right (left side motors rotate in forward direction, right side motors doesn't rotate)
digitalWrite(11,HIGH);
}
else if(t == 'R'){ //turn left (right side motors rotate in forward direction, left side motors doesn't rotate)
digitalWrite(13,HIGH);
}
else if(t == 'W'){ //turn led on or off)
digitalWrite(9,HIGH);
}
else if(t == 'w'){
digitalWrite(9,LOW);
}
else if(t == 'S'){ //STOP (all motors stop)
digitalWrite(13,LOW);
digitalWrite(12,LOW);
digitalWrite(11,LOW);
digitalWrite(10,LOW);
}
delay(100);
}Schematics
A calm person can achieve anything
KP
“Be the pure soul, Everything else will come after you” – KP
Be a good listener
KP
Helping Hands.
