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Whether your project is space constrained or you just want a cool look and a high tech keypad, the 4 x 4 membrane keypad is the ideal choice for your project.
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Whether your project is space constrained or you just want a cool look and a high tech keypad, the 4 x 4 membrane keypad is the ideal choice for your project.
The board is self adhesive, and you can attach it to almost any surface by peeling the sticker from its back and sticking into the desired location.
The button states can be detected by reading the combination of four rows and four columns provided by the matrix keypad. Underneath each key, there is an ultra thin push button connected with one end to a row, and the other end to a column, as shown below:
Fig. 1 Membrane Keypad Connections
Very pleased.
This product is exactly what I needed! keypads exactly matched the standard connections and all of the keys on all of the keypads worked flawlessly.
Worked great!
It helped me to prove concept of a project. Not difficult to program. Working great
Quality product!
Used this keypad to mate with an ESP 8266 into my project.
Excellent key pads
It was easy to change the pins. Well made key pads. Would definitely buy again.
Very standard product
Great buy! Used this to build a nice macropad for my computer.
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