I tried to use a 4 pin button as I didn't have any 2 pin buttons but it didn't work this link is to Instructables where I tried to do a project with the Arduino 4 pin button (it came with the starter kit) link: https://www.instructables.com/id/StopIt-LED-Game-powered-by-arduino/

Yes, they are the same, but those 4 pin buttons are internally connected like this: [image] So if you use the wrong 2 pins, i.e. 2 pins that are always connected, like A&D or B&C, then it does not work. You should use 2 pins that are normally not connected: A or D on one side, B or C on the other…

Or you can nip off two diagonal legs and it becomes a two pin button: [image]

A useful point to make, I think, is that components have datasheets (or should have) - all questions ought to have an answer in the datasheet. Its not impossible for some random manufacturer to come out with a 4-pin button switch with a different pin-out (unlikely, but not impossible) - so always …

is a two pin button the same as the arduino four pin button?

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MorganS June 27, 2018, 7:55am 3

Easier: use diagonal pins. A&C or B&D. Then it does not matter which way round it is installed.

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is a two pin button the same as the arduino four pin button?

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