If you want to add a keypad to your Arduino project, the options are pretty limited. There’s that red and blue 4×4 membrane we’ve all seen in password-protected door lock projects, and the phone ...

A lot of phrases surrounding phones don’t make sense anymore. With a modern cellphone, you don’t really “hang up” and there’s certainly no “dial” to be had. However, with [jakeofalltrades’] project, ...

Triacs are bidirectional ac switches that can control loads with currents as high as 25A rms at voltages as high as 600V. They find wide use in motor-speed, heater, and incandescent-lamp controls.

Enabling direct trigger via an MCU, the BCR8LM-14LK high-commutation triac specifies an RMS on-state current of 8A and a repetitive peak off-voltage (VDRM) of 700V. Enabling direct trigger via an MCU, ...