| Circuits that automatically turn off battery powered equipment after a set period are commonplace. To promote good battery life it’s imp...
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| With stress a proven cause of various illnesses and afflictions various forms of ‘autogenic’ training as a means of relaxation have hit...
| For occasional measurements of digital circuits there is no need to get hold of a real logic analyzer. With the help of several ICs it’s po...
| There must be many PC users out there with an old USB keyboard kicking around in a junkbox somewhere. Maybe it’s got a mechanical fault you...
| There can’t be many television networks worldwide that aren’t running some version of the ‘Wheel of Fortune’ game show. You know the one wh...
| In our first dot-Post on the BeagleBone Black (BBB) we looked at digital I/O. In this installment we’ll deal with the BBB’s analog capabili...
| Lead acid batteries come in several different forms and are quite troublefree. OK, so they don’t like to be overcharged, but the charger un...
| A simple audio-band noise generator is a useful tool for testing amplifiers. In days gone by, you would use a diode or the base-emitter...