Remote Car Control Using Arduino Uno & Bluetooth: A Step‑by‑Step Guide

Necessary tools and machines

3D Printer (generic)

Apps and online services

	MIT App Inventor 2
	Arduino IDE

About this project

I wanted to check a car but I have different ways to try it remotely. I wanted to do with bluetooth after the necessary tools for this and after the software was written. and this will be my second project in the hackster

Code

• arduino code

arduino codeArduino

char buffer[67];

byte Pino02 = 2;
byte Pino03 = 3;
byte Pino04 = 4;
byte Pino05 = 5;
byte Pino06 = 6;
byte Pino07 = 7;
byte Pino12 = 12;
byte Pino13 = 13;


void setup(){
  Serial.begin(9600);
  Serial.flush();
  pinMode(Pino02, OUTPUT);
  pinMode(Pino03, OUTPUT);
  pinMode(Pino04, OUTPUT);
  pinMode(Pino05, OUTPUT);
  pinMode(Pino06, OUTPUT);
  pinMode(Pino07, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
}
void loop(){
  if (Serial.available()>0){
    int index=0;
    delay(100);//deixe o buffer encher
    int numChar = Serial.available();
    if(numChar>65){
      numChar=65;
    }
    while(numChar--){
      buffer[index++] = Serial.read();
    }
    splitString(buffer);
  }
}
void splitString(char* data){
  Serial.print("Dados inseridos: ");
  Serial.println(data);
  char* parameter;
  parameter= strtok (data, " ,");
  while(parameter != NULL){
    setLED(parameter);
    parameter = strtok (NULL, " ,");
  }
  //Limpa o texto e os buffers seriais
  for (int x=0; x<66; x++){
    buffer[x]='\0';
  }
  Serial.flush();
}
void setLED(char* data){
  
  if (data[0] == 'A'){
    analogWrite(9, 50);
    analogWrite(10, 50);
    digitalWrite(Pino02, LOW);
    digitalWrite(Pino03, HIGH);
    digitalWrite(Pino04, HIGH);
    digitalWrite(Pino05, LOW);
    digitalWrite(12,HIGH);
    digitalWrite(13,LOW);
    }//İLERİSOL

    if (data[0] == 'C'){
    analogWrite(9, 50);
    analogWrite(10, 50);
    digitalWrite(Pino02, HIGH);
    digitalWrite(Pino03, LOW);
    digitalWrite(Pino04, LOW);
    digitalWrite(Pino05, HIGH);
    digitalWrite(12,HIGH);
    digitalWrite(13,LOW);
    }//İLERİSAĞ
  
  if (data[0] == 'B'){
    analogWrite(9, 25);
    analogWrite(10, 25);
    digitalWrite(Pino02, HIGH);
    digitalWrite(Pino03, LOW);
    digitalWrite(Pino04, HIGH);
    digitalWrite(Pino05, LOW);
    digitalWrite(12,LOW);
    digitalWrite(13,HIGH);
    }//GERİ1

    if (data[0] == 'M'){
    analogWrite(9, 75);
    analogWrite(10, 75);
    digitalWrite(Pino02, HIGH);
    digitalWrite(Pino03, LOW);
    digitalWrite(Pino04, HIGH);
    digitalWrite(Pino05, LOW);
    digitalWrite(12,LOW);
    digitalWrite(13,HIGH);
    }//GERİ2

     if (data[0] == 'N'){
    analogWrite(9, 125);
    analogWrite(10, 125);
    digitalWrite(Pino02, HIGH);
    digitalWrite(Pino03, LOW);
    digitalWrite(Pino04, HIGH);
    digitalWrite(Pino05, LOW);
    digitalWrite(12,LOW);
    digitalWrite(13,HIGH);
    }//GERİ3

    if (data[0] == 'P'){
    analogWrite(9, 175);
    analogWrite(10, 175);
    digitalWrite(Pino02, HIGH);
    digitalWrite(Pino03, LOW);
    digitalWrite(Pino04, HIGH);
    digitalWrite(Pino05, LOW);
    digitalWrite(12,LOW);
    digitalWrite(13,HIGH);
    }//GERİ4

    if (data[0] == 'L'){
    analogWrite(9, 225);
    analogWrite(10, 225);
    digitalWrite(Pino02, HIGH);
    digitalWrite(Pino03, LOW);
    digitalWrite(Pino04, HIGH);
    digitalWrite(Pino05, LOW);
    digitalWrite(12,LOW);
    digitalWrite(13,HIGH);
    }//GERİ5
    
  if (data[0] == 'D'){
    analogWrite(9, 25);
    analogWrite(10, 25);
    digitalWrite(Pino02, LOW);
    digitalWrite(Pino03, HIGH);
    digitalWrite(Pino04, LOW);
    digitalWrite(Pino05, HIGH);
    digitalWrite(12,HIGH);
    digitalWrite(13,LOW);
    }//İLERİ1

    if (data[0] == 'H'){
    analogWrite(9, 75);
    analogWrite(10, 75);
    digitalWrite(Pino02, LOW);
    digitalWrite(Pino03, HIGH);
    digitalWrite(Pino04, LOW);
    digitalWrite(Pino05, HIGH);
    digitalWrite(12,HIGH);
    digitalWrite(13,LOW);
    }//İLERİ2

    if (data[0] == 'I'){
    analogWrite(9, 125);
    analogWrite(10, 125);
    digitalWrite(Pino02, LOW);
    digitalWrite(Pino03, HIGH);
    digitalWrite(Pino04, LOW);
    digitalWrite(Pino05, HIGH);
    digitalWrite(12,HIGH);
    digitalWrite(13,LOW);
    }//İLERİ3

    if (data[0] == 'K'){
    analogWrite(9, 175);
    analogWrite(10, 175);
    digitalWrite(Pino02, LOW);
    digitalWrite(Pino03, HIGH);
    digitalWrite(Pino04, LOW);
    digitalWrite(Pino05, HIGH);
    digitalWrite(12,HIGH);
    digitalWrite(13,LOW);
    }//İLERİ4

    if (data[0] == 'L'){
    analogWrite(9, 225);
    analogWrite(10, 225);
    digitalWrite(Pino02, LOW);
    digitalWrite(Pino03, HIGH);
    digitalWrite(Pino04, LOW);
    digitalWrite(Pino05, HIGH);
    digitalWrite(12,HIGH);
    digitalWrite(13,LOW);
    }//İLERİ5
  
  if (data[0] == 'U'){
    digitalWrite(Pino02, LOW);
    digitalWrite(Pino03, LOW);
    digitalWrite(Pino04, LOW);
    digitalWrite(Pino05, LOW);
    digitalWrite(12,LOW);
    digitalWrite(13,LOW);
    }//DUR
     
  if (data[0] == 'E'){
    analogWrite(9, 50);
    analogWrite(10, 50);
    digitalWrite(Pino02, LOW);
    digitalWrite(Pino03, HIGH);
    digitalWrite(Pino04, LOW);
    digitalWrite(Pino05, HIGH);
    }//YAVAŞ İLERİ
      
  if (data[0] == 'F'){
    analogWrite(9, 50);
    analogWrite(10, 50);
    digitalWrite(Pino02, HIGH);
    digitalWrite(Pino03, LOW);
    digitalWrite(Pino04, HIGH);
    digitalWrite(Pino05, LOW);
    }//YAVAŞ GERİ

    
    
  
 }

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