Quick question about the sanwa pushbuttons


#1

This is more of a circuit question.
lets say you have power running through 1 wire. You take off the wire, cut it and put in a sanwa in the middle of it.
Does the signal run when it’s not depressed, and breaks it when it is?
let me know, i am interested in using this for another project i have underway.


#2

Yes, I believe what happens when you press a button is it connects the ground with the signal wire, thus breaking the connection which tells the PCB that the button has been pressed.


#3

but does the same thing apply when it is a single signal path?


#4

It does, it is like an on / off switch.


#5

Correct me if I am wrong, but it sounds like you are describing sanwas as a NC switch. Sanwas and seimitsus are NO switches. Although if you use something like Happ push buttons you can connect them to be NO or NC.


#6

no, i understand they are momentary pushbuttons, i am just wondering if the signal stays active when not pressed, and gets cut when pressed.


#7

Well as I said before, they are NO switches, meaning the circuit between the two leads of the microswitch is normally open. Thus current only flows when you push the button down.