Hacks

Add an accelerometer to an RC transmitter

If you are into Radio Control Models or robotics chances are that you have an old RC transmitter laying around. This article describes how to create a motion control module for your RC transmitter, that will allow you to control your model or robot by simply tilting the transmitter case. The tutorial includes schematics, instructions, […]

How-To: Radioshack light-up switch hack

How-To: Radioshack light-up switch hack

When shopping for switches, it’s really satisfying to dig through a drawer full of awesome options for your project, but it’s easy to get stuck with something that’s not quite right if you don’t read the package carefully. I identify with Randy Sarafan’s illuminated switch problem: I was about to wire it all up into […]

Giant LED matrix

Giant LED matrix

Richard Kline wrote in with his detailed and well-written tutorial on how to create your own ginormous 5×7 display. I built this large display, which is designed to mimic a common 5×7 LED readout, out of pink foam insulation and sundry other bits from Home Depot. The LED’s are diffused 5mm RGB’s wired together with […]

Strongly bond metal to glass with rear view mirror adhesive

Strongly bond metal to glass with rear view mirror adhesive

The glue that holds rear view mirrors in place is amazing stuff, that breaks all the normal rules about adhesives: it holds a joint between two extremely smooth, entirely nonporous surfaces that are subject to near-constant mechanical vibration, extremes of temperature, and ongoing exposure to UV radiation. And it holds for years, even decades. If you are faced with one of those “impossible” gluing problems requiring a strong metal-glass or glass-glass bond, try using a rear view mirror repair kit on it. They can be had for a couple bucks from most hardware stores.