Electronics Fun & Fundamentals: Change Sensor 05/01/2024 Find coins and other treasure with a DIY metal detector circuit.
Build This Intruder Alarm Two Ways: Using 555 Timers or a Raspberry Pi 02/25/2022 Build this alarming project two ways — from bare components and from a Pico microcontroller.
Create Custom Sound Waveforms with 555 Timers 06/01/2015 Learn to shape sound waves with timer chips to create your own digital sampling system emulator.