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Author Topic: What is Wrong With My Momentary Switch?  (Read 784 times)
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traciemw
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« on: April 26, 2008, 01:51:23 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?
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UndCon
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« Reply #1 on: April 26, 2008, 03:28:03 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
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traciemw
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« Reply #2 on: April 26, 2008, 06:28:04 PM »
This is the Radio Shack momentary switch I have:

http://www.radioshack.com/product/index.jsp?productId=2062540&cp=&sr=1&origkw=momentary+switch&kw=momentary+switch&parentPage=search
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traciemw
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« Reply #3 on: April 26, 2008, 07:16:54 PM »
I think I just solved the issue.......my switches are momentary "normally closed"....duh!! I just learned something. This electronics stuff is awesome.....
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