Here are some of the things I'm doing with the MC68HC11:

• A 68HC11 loader/debugger (No Windows port yet)
  This useful tool uses minimal resources on even the smallest MC68HC11's, leaving you free to load and debug your programs even in single-chip mode. It's a free download, all I ask is that you send me a postcard.

• R/C car robot
  A cheap full-control R/C car can make a good base for a robot.

• Pan-tilt head
  I modified the "neck" mechanism out of a golf-ball typewriter to get a tough pan-tilt platform, which has continuous 360 degree panning and 80 degrees of tilt. I have yet to fit the servomotors to it, but the pictures here should give you an idea.

• Direction-sensing sonar
  The pan-tilt head needs this direction-sensing ultrasound sonar unit, which uses my stereo version of the circuit published by Gerry Coe, of Devantech. It's remarkably effective!

• Midi Percussion controller   (picture)
  This is a general purpose 64 channel data acquisition device with serial output, except that the inputs can stretch pulses from a piezo wafer, and the datacomms is either RS232 or MIDI. The result is a board you could use for anything from a burglar alarm to a drum machine. It can scan all 64 channels in 1.4ms while generating serial output.

  I'm using it initially to build a 5-octave vibraphone controller for a musician friend. The prototype has only two octaves, and the pads are made from flooring rubber, vinyl and plywood. It's working great but I have a lot more work to do in the software department before it's a professionally usable instrument.

  Initial tests show that it's capable of outperforming some quite expensive drum machine controller hardware in a number of ways, due to the novel acquisition and timing methods used to prevent double triggering and false triggering.

  The board is single-sided but compact, and was designed using Circad. Sorry, you can't download the board design because I am considering selling this design (and/or products built with it). Contact me if you have a proposal!

• Floppy drive stepper-motor robot
  This is one of those robotics rites-of-passage. It took only one afternoon to build, which was mostly contructing a dolly wheel from bits out of a printer, and is pretty gutless. I used the lowest current steppers I could find in the hope of getting more efficient ones, but they're just gutless. I must change them for some of the other ten in my collection. It's also driven by a Miniboard.