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Posts from ‘August, 2012’

Running Raspbian inside Linaro QEMU

Raspbian is a hard float build of Debian wheezy for the ARMv6K processor in the Raspberry Pi. Here’s yet another set of instructions for running the image under QEMU, this time using the pre-built Linaro goodness that comes with Ubuntu Precise. This is a hack that happens to work – see Peter’s comment below for [...]

Using vision to measure wheel speed

One of my after-hours projects is to get my Traxxas Rustler XL-5 to take itself for a drive. The first steps are measuring the open loop response, including how the PWM drive into the motor controller turns into a no-load wheel RPM. I don’t have a tacho but I do have a web cam, an [...]