I'm looking to buy a micromouse (i.e. a small single-board unit with wheels and IR sensors that can move around freely). I've done a lot of searching but have only found resources relating to building one from components bought separately. However, I'm more of a programmer than an electrician so I fear I would struggle with this.
Anybody know where to buy one of these in the UK? (PICAXE does some suitable stuff but they're BASIC only unfortunately). My budget is about £60.
I think you'll be hard-pressed to find a Micromouse off the shelf besides PICAXE. If you want one that's a bit more advanced, I'd recommend putting the robot together yourself. I would encourage you to try out the electronics on a project like this, they aren't too bad to figure out and there are lots of resources online.
An arduino-nano is capable for such a task, look into AVR-GCC for programming.
NEMA-17 sized stepper motors will supply enough power, Pololu is a good site to find these motors and matching wheels/controllers.
I've seen people use Sharp IR's before, this will simplify some of the electronics.
This is a difficult project but very rewarding! Best of luck.