If you like popping bubble wrap you’ll have a great time with the densely packed 16 buttons on 4x4 Key click.
4x4 Key click carries a keypad that can register multiple inputs at the same time. In fact,
you can press all 16 buttons simultaneously and all of them will be registered.
It does so because a pair of serially connected 8-bit shift registers read all the inputs.
They gulp up whole bytes — the button configuration of the entire keypad — and then spit out
single bits through mikroBUS™ SPI pins.
That’s how the machine (MCU) reads the buttons. To make it understandable for you, the
human, we added silkscreen markings of a standard DTMF keypad. These are the ones
you’re used to seeing on phone dialers, with an addition of A-D letters in the right-most column.
Those inclined will also enjoy the soothing, calming sensation of just randomly clicking these buttons. Why not?
When you’re done with that, insert the board into the mikroBUS™ socket and load up the Libstock example.
For more details, visit the product page.
Yours sincerely,
MikroElektronika
