Praise for the Lo-Z Probe

square
 

Lessons learned on the topic of high-speed signal probing, and how to build a high-bandwidth "Lo-Z" probe for very little money.

 

 

Read more: Praise for the Lo-Z Probe

Karaoke Mixer

square
 

A sound mixer for a YouTube-based Karaoke system.

 

 

Read more: Karaoke Mixer

A Dollar Store Voltmeter

 
sq
 

How to make a cheap panel voltmeter from a dollar-store pedometer.

 

 

 

Read more: A Dollar Store Voltmeter

Fume Extractor for Your Electronics Workbench

sq
 

How to build a fume extractor for your electronics workbench using an old PC power supply.

 

 

Read more: Fume Extractor for Your Electronics Workbench

Building an Adjustable Constant Current Load

square
 

Building a constant current "dummy" load. A useful piece of test gear for any electronics lab.

 

 

Read more: Building an Adjustable Constant Current Load

LED Fader for Home Lighting Applications

 
sq
 

An LED lighting project with slow fade-in effect and two switchable lighting levels.

 

 

 

Read more: LED Fader for Home Lighting Applications

Battery Operated Light Box

sq
 

Build a battery operated light box for photographing small objects.

 

 

Read more: Battery Operated Light Box

Converting a Flashlight to LED

sq
 

Converting a flashlight to LED.

 

 

Read more: Converting a Flashlight to LED

Sound Activated Laser Parking System

 
 

This is a link to the article I published in the May 2012 edition of the Nuts & Volts magazine: a sound activated, laser parking system.

 

 

 

Read more: Sound Activated Laser Parking System

Flood Alarm

sq
 

Flooding inside your home can have devastating effects. Protect yourself by building a simple flood alarm.

 

 

Read more: Flood Alarm

Building a USB Charger for Toys and Other Devices

symasq
 

How to build an AC-powered USB charger for toys or other devices by re-purposing an old cell-phone charger.

 

 

Read more: Building a USB Charger for Toys and Other Devices