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 ...
The I2CKeyPad8x8 library implements the reading of a 8x8 keypad by means of a PCF8575. Smaller keypads, meaning less columns or rows (e.g. 5x4) can be read with it too. Sometimes you need to control ...
A basic smart lock system implemented on an STM32 Nucleo board using a 4x4 matrix keypad, servo motor, buzzer, and OLED display. This version includes full keypad-based password handling and ...
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