Driving a LED array from a BeagleBone Black

Over a month ago, now, I had a brief play with my Beaglebone Black. It took me a while but I just about got to the point of flashing an LED. That was enough at the time, but now I want to do something more interesting. So I thought I’d start by doing some patterns …

Continue reading ‘Driving a LED array from a BeagleBone Black’ »

Repairing a faulty “flowing water light” board

For my next experiments with LEDs and PWM I need more lights. When I bought the “flowing water light” I also bought a second one, but I hadn’t bothered assembling it yet. Naively I thought it would be as straight-forward as making the first one. I assembled the board (as far as I can tell) …

Continue reading ‘Repairing a faulty “flowing water light” board’ »

Using bit-angle PWM to drive GPIO pins

Although yesterday’s post was a reasonable introduction to bit-angle PWM, showing a pattern of characters on a console screen is hardly the most exciting or useful thing. So today I shall try to use the same code to drive something a bit more fun. I still had the “flowing water light” lying around, which I …

Continue reading ‘Using bit-angle PWM to drive GPIO pins’ »