Car Automatic Roll up Window Module for $5



Will you forget to close the car window shutters ?. It may be a big risk to you and your security system may be worth less. Though your car is locked but the window shutters are remained opened, then you are in a risk.

That is why you need an automatic window roll up module. You can buy one from online. But it will be a cost of around $10.

But, in this tutorial "Easy Mades" is going to show you how to make a car window roll up module less than $5.

Let's Start the project.



you may need following parts

1. Arduino Uno
2.Relays
3.NPN Transisters
4.Diodes
5. Resisters
6.Capacitors
7.Wires
8.Wire Strips
9.Lead



If you are not willing to use arduino Uno board, you can use the following circuit


Read and Understand the following circuit diagram and you can build it on a vero board.



You can see the wire "A", "B","C" and "D" it shoud be connected with window motors. The connection diagram as follows.


Lets Upload the codes.

/*
 * www.easymades.com
 * www.facebooc.com/easymadescom
 * Car automatic window roll up module
 */

int Dwindow = 4;
int Pwindow = 5;
int BTTpin = 7;
int DoorPin = 8;
int resetme =11;
int Horn = 10;
int DW_read;
int PW_read;
int BTT_Read;
int Door_Read;
int Delay = 6000;

void setup() {
//---------------------------------------------------------------------
pinMode(Dwindow,OUTPUT);
pinMode(Pwindow,OUTPUT);
pinMode(BTTpin,INPUT);
pinMode(DoorPin,INPUT);
pinMode(resetme,OUTPUT);
pinMode(Horn,OUTPUT);

//---------------------------------------------------------------------

DW_read=digitalRead(Dwindow);
PW_read=digitalRead(Pwindow); 
Door_Read=digitalRead(DoorPin);
BTT_Read=digitalRead(BTTpin); 
delay(1000);
Carhorn();
delay(3000);
if (BTT_Read ==0){
  delay(100);
if (Door_Read ==1){
delay(100);  
//Close Passanger Window
digitalWrite(Pwindow,HIGH);
delay(Delay);
digitalWrite(Pwindow,LOW);
delay(1000);
//Close Driver's Window
digitalWrite(Dwindow,HIGH);
delay(Delay);
digitalWrite(Dwindow,LOW);
delay(500);

}//////
}

digitalWrite(resetme,HIGH);


delay(1000);


}

void loop() {


}

void Carhorn(){

digitalWrite(Horn,HIGH);
delay(25);
digitalWrite(Horn,LOW);
delay(500);
digitalWrite(Horn,HIGH);
delay(25);
digitalWrite(Horn,LOW);
}

Installation part

Find the center lock system of car. There may by 5 wires
Now change the multi meter position to DC voltmeter  

Then connect negative pin to car ground and connect each five
wires in center lock system and find "Lock" and "Unlock" wires 
having locked and unlocked the car using remote lock key.

Find the car horn wire, it should be negative trigger. 
Then find the negative trigger of door switch.

The most important wire is Battery wire. Battery wire gives 
you always power even the car is switch off. Therefore you 
must use a separate 20A fuse. 










Now put the car key and rotate once. and find the car power
 "ACC" wire.


To install the module you can find a better place. 
I hope inside the door is the best place to mount the module.


remove the door panel and install the module correctly.
after wiring is completed, close the door and lock the car. 
then if all the wiring is correct
1. two time horn
2.Close 1st window
3.Close 2nd window.

While the window is being closed, if you press the unlock 
roll up will be stopped.

Check the unit.

1. Open a door and click lock --> car horn only no roll up
2. Door closed and car on or started --> Horn only no roll up
3. Door opened and car on or started --> Horn  only no roll up.


****If the car horn is repeating, it means the module current 
is not adequate. 
Let me know fore troubleshooting.

***If the roll uo worked once and then no horn and roll up, 
please check the fuse. You may have to use a big fuse than 
20A.

In any case of trouble please ask me, I am willing to help you.








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