Fresh hacks every day
[Andrzej's] plain old computer speakers are ordinary no more. He pulled off a fairly complicated hack which now lets him control speakers via Bluetooth. He had a set of Creative brand computer speakers with a volume potentiometer that needed replacing. He was having trouble finding a drop-in replacement part and decided he would just go with a rotary encoder. Obviously you can't just drop one … [Read more...]
Drumming hackers take note, if you've got an extra bass drum pedal it's cheap and simple to use it as a MIDI controller. This rig was thrown together to supplement a DIG DRUM electric drum set. That piece of equipment has a pedal add-on that didn't come with it. Turns out all it does is feed a resistance value to the set. To get this up and running a frame was built from a metal base and … [Read more...]
[Lee] wrote in to share the work he's done in building a controller for his soldering iron. The idea started when he was working with an ATX power supply. He figured if it works as a makeshift bench supply perhaps he could use it as the source for an adjustable iron. To get around the built-in short-circuit protection he needed a potentiometer to limit the current while allowing for adjustments. … [Read more...]
We like what we're seeing and hearing with [Dorian Damon's] newest version of the Potentar. This is revision 2.0 of the instrument we saw in a December links post. He calls it the Potentar, since it uses a linear potentiometer in a way similar to how the frets on a guitar work (Potentiometer + Guitar = Potentar). The first thing you should notice is the case upgrade. The original used what … [Read more...]
Unhappy with the 120 degree range of movement for this digital servo motor [Malte] set out to expand its flexibility. He settled upon a hack that alters the feedback potentiometer in order to give the motor a wider range (translated). The test video (embedded after the break) shows tick marks for before and after his alterations. You can see that the wider tick marks get much closer to the 180 … [Read more...]
[Gene Buckle] built himself a nice custom cockpit for playing Flight Simulator, but during use he found that the gimbal he constructed for the pitch and roll controls was nearly unusable. He narrowed the problem down to the potentiometers he used to read the angle of the controls, so he set off to find a suitable and more stable replacement. He figured that Hall effect sensors would be perfect … [Read more...]
[Johnny Halfmoon] wanted to help out his three-year-old who was fascinated by the Bopit electronic game. In its stock condition it's a bit too fast for the young one, so he cracked it opened and added the option to slow things down. Above you can see the Bopit Extreme with the top half of the case removed. Although not hard to get open (there's just 12 screws to remove) the spring-loaded … [Read more...]
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