Author Topic: What is Wrong With My Momentary Switch?  (Read 4766 times)

Offline traciemw

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on: April 26, 2008, 12:51:23 PM
I have my homemade IR Pen hooked up like this:


Positive (AA battery}+--(resistor)-----(switch)----------(IR LED)-\
        |                                                                           |
Negative---  -----------------------------------------/


Everything works...kinda... my light is always on except when I push the momentary switch then ig goes off. What the heck did I do wrong?



Offline UndCon

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Reply #1 on: April 26, 2008, 02:28:03 PM
On your switch - do you have 3 connectors like the one i use ?



If so you have 2 that is a closed circuit that breaks when you push the button(like in your case)

and one where the button closes the circuit(the one you should use)

EDIR:

found a link with some helpful text

http://www.kpsec.freeuk.com/components/switch.htm




Offline traciemw

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Reply #3 on: April 26, 2008, 06:16:54 PM
I think I just solved the issue.......my switches are momentary "normally closed"....duh!! I just learned something. This electronics stuff is awesome.....