I’ve had my Raspberry Pi for a while now, and it makes a great little Linux system.  I’ve even been exercising the graphics capabilities with our game Iridium Rising But one thing I’ve been meaning to do is go straight...

You’ve probably seen Dr. Monk’s blog on using Pi and Arduino, but what if you don’t have the Arduino software installed on a nearby computer?  (Or, like me, you are just perverse and want to make something work only using...

My RaspberryPi arrived yesterday! I’ve been anticipating it for so long I almost wasn’t expecting it, despite the dispatch note from Farnell on Friday. I spent a while yesterday struggling to get it booting, due to an SD card it...

I bought a little stepper motor and H-bridge.  The plan eventually is to integrate it into a steampunk costume, but today I was just getting it wired up to try it out. I wired things up according to the 4-wire...

Along with half the rest of the known universe, I’m eagerly awaiting the release of the RaspberryPi. The Pi is a fullly fledged computer that costs only $35 (or in future $25 for a model with less memory, no ethernet...

Someone at work mentioned charlieplexing, which I thought was rather cool.  And potentially useful for debugging things on the ATTiny where you don’t have many pins. So in a break from playing with the Scalextric bits, I’ve made up a...

I thought it was about time I put my display driving code on the FPGA to good use   So I added the X, Y and Z values to the power value already transmitted from the Arduino, and got the...

Now I have a reasonable RF link, I’ve been trying to get the car to drive around the track. I have a slightly odd setup for controlling the power to the track.  Because I made this up before my Arduino...

As mentioned previously, I’m now using a Manchester encoding library linked to from mchr3k‘s blog, and originally posted here, to transmit data from the car back to my Arduino Uno. I took a bunch of changes from mchr3k, including comments...

I never got round to trying out my new motors yesterday, so I thought I’d give that a go this morning.  I replaced the motor in one of our two old Porsches. Unfortunately I broke the motor mount slightly when...