
Strobe from Flash.
After using a disposable camera, you can build a strobe light (flashing light) with one simple modification. (6/2/2006)Category: electronics circuits light diy homemade - Updated: 2009/07/24

Tachometer/RPM.
Easy to build using only a few components. With some modifications, it can be used in an automobile. This Tachometer uses a PIC 16F628.(06/12/2004)Category: microcontroller circuits automobile homemade - Updated: 2009/07/24

Tachometer/RPM II.
This is an improved version of the Tachometer created specially to measure up to 9,999 RPM. Uses a PIC 16F628. (04/24/2006)Category: microcontroller circuits automobile homemade - Updated: 2014/03/02

Tachometer for Bikes (circuit).
Here are some instructions how to connect the Tachometer version II to a single cylinder. Thanks Firoz! (3/9/2007)Category: microcontroller circuits automobile homemade - Updated: 2009/07/23

Transformerless Power Supply.
Simple, low cost and easy to build power supply. Ideal for applications that doesn't requiere too much power. (5/28/2006)Category: electronics circuits homemade - Updated: 2009/07/23
Where to get parts.
Tips to get cheap parts and some parts distribuitors than sell good and inexpensive parts. (6/10/2006)Category: electronics circuits homemade - Updated: 2009/07/23
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