Monthly Archives: February 2014

Low-cost motor control by displaying coloured shapes on a phone or PC screen

Smart phones pack a lot of features (battery, display, sensors, audio i/o, wireless internet connectivity, computing power, etc) into a tiny, convenient, inexpensive package. A smart phone therefore makes a great robot brain and I’ve become fascinated by the idea … Continue reading

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Phasor diagrams in GNU Octave

I’ve been experimenting with plotting phasor diagrams in GNU Octave. This approach may also work in MATLAB, but I haven’t tried that yet. I need to tidy this up a little more to make it convenient to reuse, but I’m … Continue reading

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2D Room Mapping With a Laser and a Webcam

Originally posted on Hackaday:
[Shane Ormonde] recently learned how to measure distance using just a webcam, a laser, and everyone’s favorite math — trigonometry. Since then he’s thrown the device onto a stepper motor, and now has a clever 2D…

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Motion Tracking on the Cheap with a PIC

Originally posted on Hackaday:
Ever need a cheap motion tracker for very basic object following? Did you know you can throw one together with a few IR distance sensors and a PIC? The setup is fairly simple. [Aron Horan] is…

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