what kind of sensor ????

[lina889]

i want to know the kind of sensor that i can use in this case :
in some place if the car is entered the garage and stay for a while the sensor will detect that the sensor i will put it on the wall behind the car ????
like it detect if there is a car in the garage or not and if there it will give interrupt

 

[incomplete_jerin]

Use IR sensors which on would give you interrupt if the object which you parked/kept is taken from the place you kept/parked.
Check out this link about IR sensor. It may help you.
**broken link removed**.
Regards,
Jerin.

 

[pasicr]

Ultrasonic sensor is possible choice for you, look Distance Sensors
regards

 

[incomplete_jerin]

If your concern is ONLY to detect the object & IF DISTANCE doesn't matter then go for IR Sensor.
Regards,
Jerin.

 

[lina889]

I want to put it on the wall of the garage
If the car after a certain distance from the wall thats mean the car (( inside the garage)) the sensor give me interrupt
which is perfect ???
i hear about proximity switches but am not sure about what is the best

 

[incomplete_jerin]

If your concern is ONLY to detect the object & IF DISTANCE doesn't matter then go for IR Sensor.
Regards,
Jerin.

 

[nikhil_jain]

agree with jerin.. but distance sensors like Sharp's GPD and Ultrasonic sensors are more reliable for detecting an interruption or obstruction.. also IR sensors have a limited range.

 

[lina889]

is there any other sensor i can use for this case because IR sensor is expensive ????