VDO Marelli Idle motor driver

[longgo]

Hi
Have you ever try to clean that sh*t VDO Marelli? Yep, is much more easy if you have something to drive it at home. Taking piston out, moving both ways, check for noise and so on.
Here is my "test bench"
- 1 x test board
- 1 x arduino UNO
- 2 x push buttons
- 2 x 10k resistors
- 1 x L293D driver
- some wires



Code for arduino is:

Koodi: Valitse kaikki

#define motor_pin_1 2 //arduino digital 2
#define motor_pin_2 3 //arduino digital 3
#define motor_pin_3 4 //arduino digital 4
#define motor_pin_4 5 //arduino digital 5

int spin[32] = {
1,0,0,0,
1,0,1,0,
0,0,1,0,
0,1,1,0,
0,1,0,0,
0,1,0,1,
0,0,0,1,
1,0,0,1
};

void setup(){
  pinMode(motor_pin_1,OUTPUT);
  pinMode(motor_pin_2,OUTPUT);
  pinMode(motor_pin_3,OUTPUT);
  pinMode(motor_pin_4,OUTPUT);
  
  pinMode(8,INPUT);
  pinMode(9,INPUT);
}

void loop(){
     if(digitalRead(8) == HIGH){
                    forward(1,3);
     }
     if(digitalRead(9) == HIGH){
                   backward(1,3);
     }
}

void forward(int rep,int dly){
  for(int x=0; x<rep;x++){
     for(int t=0; t<32; t+=4){
          digitalWrite(motor_pin_1, spin[t]);
          digitalWrite(motor_pin_2, spin[t+1]);
          digitalWrite(motor_pin_3, spin[t+2]);
          digitalWrite(motor_pin_4, spin[t+3]);
          delay(dly);
     }
  }
digitalWrite(motor_pin_1, LOW);
digitalWrite(motor_pin_2, LOW);
digitalWrite(motor_pin_3, LOW);
digitalWrite(motor_pin_4, LOW);  
}

void backward(int rep,int dly){
  for(int x=0; x<rep;x++){
     for(int t=32; t>=0; t-=4){
          digitalWrite(motor_pin_1, spin[t]);
          digitalWrite(motor_pin_2, spin[t+1]);
          digitalWrite(motor_pin_3, spin[t+2]);
          digitalWrite(motor_pin_4, spin[t+3]);
          delay(dly);
     }
  }
digitalWrite(motor_pin_1, LOW);
digitalWrite(motor_pin_2, LOW);
digitalWrite(motor_pin_3, LOW);
digitalWrite(motor_pin_4, LOW);  
}

And some video in "action"
http://www.youtube.com/watch?v=w8tOh3dsAzU

[ds-jekkeri]

nice project. well done

[zemial]

Nice. This one is really helpful piece of information.

There are also plug´n´play boards for this driver:

http://www.ebay.com/itm/Mini-Motor-Driv ... SwbYZXejcN

http://www.ebay.com/itm/Motor-Drive-Shi ... SwA4dWLtGO

[longgo]

And to shrink little more the project:
- Atmel tiny 85 (@ 16Mghz / 4.8V - PLL)
- L293D
- 10k , 22k, 220k
- 2x push buttons
- 7805 , 1uF , 10F caps

Koodi: Valitse kaikki

#define motor_pin_1 0 // pin 5  coil 1
#define motor_pin_2 1 // pin 6  coil 1
#define motor_pin_3 3 // pin 2  coil 2
#define motor_pin_4 4 // pin 3  coil 2

int spin[32] = {
1,0,0,0,
1,0,1,0,
0,0,1,0,
0,1,1,0,
0,1,0,0,
0,1,0,1,
0,0,0,1,
1,0,0,1
};

void setup(){
  pinMode(motor_pin_1,OUTPUT);
  pinMode(motor_pin_2,OUTPUT);
  pinMode(motor_pin_3,OUTPUT);
  pinMode(motor_pin_4,OUTPUT);
}

void loop(){
     int buttonRead = analogRead(A1);
     delay(5);
     if(buttonRead > 10 && buttonRead < 200){
                 backward();      
     }else if(buttonRead > 200 && buttonRead < 600){
                 forward();
     }else{
                 park();
     }
}

void forward(){
     for(int t=0; t<32; t+=4){
          digitalWrite(motor_pin_1, spin[t]);
          digitalWrite(motor_pin_2, spin[t+1]);
          digitalWrite(motor_pin_3, spin[t+2]);
          digitalWrite(motor_pin_4, spin[t+3]);
          delay(3);
     }
}

void backward(){
     for(int z=32; z>=0; z-=4){
          digitalWrite(motor_pin_1, spin[z]);
          digitalWrite(motor_pin_2, spin[z+1]);
          digitalWrite(motor_pin_3, spin[z+2]);
          digitalWrite(motor_pin_4, spin[z+3]);
          delay(3);
     }
}

void park(){
    digitalWrite(motor_pin_1, LOW);
    digitalWrite(motor_pin_2, LOW);
    digitalWrite(motor_pin_3, LOW);
    digitalWrite(motor_pin_4, LOW);    
}