button matrix – WindowsTechs.com

Keypad Interface Module Reverse Engineers Pinouts So You Don’t Have To

Posted on October 12, 2023 by Chris Lott

If you’ve scavenged some random keypads and want to reuse them in a project without the hassle of figuring out the pinouts, then [Cliff Biffle] has an interface module for …read more Continue reading Keypad Interface Module Reverse Engineers Pinouts So You Don’t Have To→

DIY Button Matrix Lights Up And Speaks I2C

Posted on May 17, 2019 by Donald Papp

[David Johnson-Davies] always wanted an illuminated button matrix for projects, but cost was never very friendly. That all changed when he discovered a cheap source of illuminated pushbuttons on Aliexpress, leading to this DIY 4×4 illuminated button matrix design which communicates over I²C. The button states can be …read more

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