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---
id: nsrv
title: Push buttons
tags: [electronics]
created: Tuesday, June 25, 2024
---
# Push buttons
Push buttons are push-to-make switches. This means that they are **on when they
pressed and off when they are not pressed**. A classic example would be the
switches on a keyboard.
Push buttons have four legs that are connected in signal-in and signal-out
pairs.
To create a breakable circuit we would connect a signal-in cable to the top left
at row 23 and a signal-out cable to the bottom-right at row 25.
To override the switch functionality and just have the button work as a
connector we would connect the signal-in to the row 23 input and the row 23
output.
## Related notes