School project

Community Projects
1

Hello there :slight_smile:

I’m new on this Forum… but I need some help for my school project : :dance:

We came up with this project:

  • It’s a motion sensor that will be linked to a timer (5min) that will turn off the light(s) if no one is in the room after 5min.

The motion sensor and timer will be connected to the light switch.

Is anyone has any idea of how to make this … ?

Thank you very much in advance for your help :slight_smile:

Julie

2

http://www.homedepot.com/b/Electrical-D … 5yc1vZc32r

https://www.google.com/webhp?sourceid=c … n%20sensor

3

You can also type in Arduino in your searches to get DIY links…

4

If you don’t have experience working with line voltage, I would attach a servo or two solenoids to the handle of the existing switch, and have them turn it on or off. Too easy to kill yourself with line voltage if you are not careful.

/mike

5

Rawcords:
Hello there :slight_smile:

I’m new on this Forum… but I need some help for my school project : :dance:

We came up with this project:

  • It’s a motion sensor that will be linked to a timer (5min) that will turn off the light(s) if no one is in the room after 5min.

The motion sensor and timer will be connected to the light switch.

Is anyone has any idea of how to make this … ?

Thank you very much in advance for your help :slight_smile:

Julie

Commercial products a-plenty that do this are called “Room Occupancy Sensor”.

But designing your own after doing your research would be educational. Asking us to do the work isn’t a good thing.

Hint: Microprocessor. Passive Infrared motion sensor. Clever signal processing microcode.