Description: This is a standard 12mm square momentary button. What we really like is the large button head and good tactile feel (it ‘clicks’ really well). This button is great for user input on a PCB or a good, big reset button on a breadboard. Breadboard friendly!
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First, this switch is working out great for my project. It fit in my breadboard just fine, and works nicely with my Raspberry Pi GPIO pins.
I ordered 4 of these switches, and they came in a ziplock bag with no other documentation. Without experience, it’s impossible to know which way the pins get connected when the button is pushed…there really needs to be a little circuit diagram included with the part. I had to use my multimeter in resistance mode to figure out how it worked…not a big deal, but I shouldn’t have to!
I was expecting the smaller more flimsy push button switches that you get in some Arduino kits. These are bigger and more solid. The button also has more resistance, which in my case was not quite ideal because I wanted the weight of objects being placed on them to activate the switch. But I can imagine for most cases where you just want a nice tactile feel, this is a good thing.
Would be nice to know how to hook this up :)
Greetings. Here is a nice diagram I found in Google of the internal connections for this type of push button: http://elinux.org/images/4/4b/Mpushbuttonworking.jpg
The legs are way too wide to easily fit in a breadboard. They are way too hard to insert (probably spreading the plates on your breadboard too much), and they pop out easily.
Please, SF, spec some buttons with truly breadboard friendly legs.
Sorry about this. You are right, these aren’t the best for bread board applications. I will pass your feed back along to our parts hunters. Maybe we can get a good bread board compatible button. You can make these work, but they won’t be super stable in the bb. Happy hacking