O Omar.M Member Feb 3, 2007 #1 Hello, I recently found an old VCR and decided to take the faceplate apart -- only to find a trillion little components that I could use. I see many small push button switches, with 4 pins like you see here: https://www.sparkfun.com/commerce/product_info.php?products_id=97 But I am not too sure how to connect it to any circuit. Let's say I have an LED, and I want to power it when the switch is pressed. Which pin would I connect the voltage too? The led? Or do I need to use all 4? Thanks, Omar
Hello, I recently found an old VCR and decided to take the faceplate apart -- only to find a trillion little components that I could use. I see many small push button switches, with 4 pins like you see here: https://www.sparkfun.com/commerce/product_info.php?products_id=97 But I am not too sure how to connect it to any circuit. Let's say I have an LED, and I want to power it when the switch is pressed. Which pin would I connect the voltage too? The led? Or do I need to use all 4? Thanks, Omar
House0Fwax Member Feb 3, 2007 #2 You'll find that you have two sets of two legs joined together. A simple check with a meter will tell you which two to use.
You'll find that you have two sets of two legs joined together. A simple check with a meter will tell you which two to use.
Sceadwian Banned Feb 3, 2007 #3 Hopefully you have a multimeter, it's easy enough to check out exactly which leads to use using the continuity feature.
Hopefully you have a multimeter, it's easy enough to check out exactly which leads to use using the continuity feature.
H HarveyH42 Banned Feb 3, 2007 #4 If they are still soldered to the board, might look at the copper traces...