hi, iv got to do a project for my electronics course, so i thought id make a mouse trap, using an infrared beam to trigger the door closing mechanism.
it will be a long tube, with the beam at the back, and a trap door at the front held up by an electro-magnet which will be triggered on by a switch, and off by the IR beam being broken (hopefully by a mouse). Is there anyway i can make it for only mice and not just anything like a spider that decides to go inside?
also, the electronics i took from this site:
**broken link removed**
ill have to power this from 2 6volt batteries i think unless someone can think of a more cost effective way?
what i really want to know is, will the output be able to power an electro-magnet and an LED? and also if anyone could tell me how many windings on a piece of iron would i need for a decent magnet? like 300? and does it matter which possition the windings are in or just in middle will do?
thnx a lot for any help
it will be a long tube, with the beam at the back, and a trap door at the front held up by an electro-magnet which will be triggered on by a switch, and off by the IR beam being broken (hopefully by a mouse). Is there anyway i can make it for only mice and not just anything like a spider that decides to go inside?
also, the electronics i took from this site:
**broken link removed**
ill have to power this from 2 6volt batteries i think unless someone can think of a more cost effective way?
what i really want to know is, will the output be able to power an electro-magnet and an LED? and also if anyone could tell me how many windings on a piece of iron would i need for a decent magnet? like 300? and does it matter which possition the windings are in or just in middle will do?
thnx a lot for any help