Introduction: Home-made Box With Alarm
Hi!
I made a simple box with alarm.
You need:
Reed switch
Magnet
Plastic box
Buzzer
Resistor (if necessary)
Flashing LED
Button
Batteries (x2,3 or more).
Connect everything like this:
<--Batteries----Button-----Buzzer-------------Reed switch------>
- + | |
Resistor | (magnet)
| |
LED----------- |
*** Download photos: http://cl.ly/J2ao ***
I made a simple box with alarm.
You need:
Reed switch
Magnet
Plastic box
Buzzer
Resistor (if necessary)
Flashing LED
Button
Batteries (x2,3 or more).
Connect everything like this:
<--Batteries----Button-----Buzzer-------------Reed switch------>
- + | |
Resistor | (magnet)
| |
LED----------- |
*** Download photos: http://cl.ly/J2ao ***