Jul 172016
Level Shifters

  Working with Level Shifters Level shifters are a wonderful and very affordable solution when you have a situation where you have to interface a 3.3VDC and a 5VDC device. They are also called voltage shifters and they come in uni-direction versions where the signal only goes one way, bi-directional where signal goes both ways, […]

Sep 272015
Direct Current Electric Neodymium Motor

DC Electric DIY Motor Project Let’s build an electric motor. “An electric motor is an electrical machine that converts electrical energy into mechanical energy.”¬† We won’t go into exactly how the electricity makes this motor work because that would be a book all on its own, so let’s build this motor and have fun! To […]

Sep 122015
Electronic Components Salvage: Dumpster and Thrift Store Treasure

Once a month or so the Volthaus Electronics Laboratory¬† Team will make the rounds of various thrift stores (i.e. Goodwill, etc.). Recently while browsing we found two Altec-Lansing Powered Sub-Woofers. One was priced @ $5USD and the other one was $10USD.   They were originally a part of a 5.1 computer speaker system but when […]

Aug 312015
Automatic Night Light

This night light does not begin glowing until the ambient light in the room is very dim. Others begin glowing when the light in the room is still fairly bright. If your night light comes on when the light in the room is still bright you’re going to be wasting a lot of the electricity […]

Aug 132015
Motion Activated Alarm

Electronic circuits don’t come much simpler than this.     BOM: (bill of materials) PIR – The Passive Infrared Sensor – Buy Now Buzzer – The buzzer that sounds when the sensor detects motion – Buy Now 9 volt battery and battery clip with leads Jumper wires to complete the circuit Optional – Solderless Breadboard […]

1st project tips

 DIY, Easy, Project  Comments Off on 1st project tips
Mar 212015
1st project tips

In the near future we’ll have a video, schematics to share with you as our first project a motion activated intruder alert system. The nice thing is you can put this project together cheaply. Here are a list of the components needed. Infrared Motion Activated Intruder Alert Components: PIR – Passive Infrared Sensor 3-24 VDC […]