Motion Detector Lamp

I built this simple lamp for my old mom. It is intended to be placed under the bed and to light up when getting up, a simple way to get light immediately reducing the risks of falling while moving in the dark.Nothing fancy, I just found a led lamp and a motion detector both in(…)


Dust Collector Full Detector

If you have a dust collector you know what a pain it is if the shavings backup into the filter. Some of the commercial units available are expensive and they rely on an optical sensor. Who would put anything optical inside a drum full of statically charged dust and shavings and expect it to work(…)


Varmint Detector

Using Eagle, the PCB I designed is a “Varmint Detector”. Varmint: noun, North American informal – a troublesome wild animal. In my case, crows and chipmunks attacking our garden. They really aren’t much of a problem, this is just my excuse to build a solar powered device.Scenario: animal moves …By: JonMackey Continue Reading » Instructables:(…)


3d Printer Smoke Detector

3D printer smoke detectorI built this smoke detector with the hope of feeling more at ease when leaving my printer overnight or going out while its still running. If you had to be around monitoring your printer for every print, you would never leave the house!The smoke detector is built with an atme…By: AnthonyH3 Continue(…)


Electrostatic Polarity Detector

Completed by Kristen Stevens, Karem Gonzalez, and Leslye SaavedraAn electrostatic polarity detector can be used to detect if an object is negatively or positively charged. We followed the steps from the following youtube video: Materials: FDS8958A …By: kri2190522 Continue Reading » Instructables: exploring – featured