While searching for new products on AliExpress, I came across the SayoDevice OSU O3C, which looks very similar to other macro ...

A hackerspace is a place that generally needs to be accessed by a wide group of people, often at weird and unusual hours.

A lot of making goes on in this community these days, but sometimes you’ve just gotta do some old fashioned hacking. You might have grabbed an old Speak and Spell that you want to repurpose ...

Abstract: Developing programming competencies is essential for systems, information science, computer science, and electrical engineering students. Engineering students usually face the complexity of ...

Abstract: This system presents the design and implementation of a password-based door lock system integrated with LED light control for enhanced security. The proposed system allows password entry ...

The PCB must be mounted floated, otherwise key presses don't work reliable. Connect pins 3 and 4 on connector P1 for 16-pin button mode. Smaller keypads with less pins may work, but are not tested.

The main purpose of this project is to reduce time of development :) Sometimes programming the hardware takes too much time during debugging, so one can emulate the output of the ADAFRUIT GFX library ...