What's Next in Hybrid Analog/Digital Projects Beyond Ultrasonic Rangefinders?

[digitalblggr]

I am looking for suggestions for a hybrid analog/digital project. I have built an ultrasonic rangefinder before, and am now ready to tackle something more difficult and exciting. I found a lot of examples of such projects, but I am looking for something new and innovative.

 

[berkeman]

I am looking for suggestions for a hybrid analog/digital project. I have built an ultrasonic rangefinder before, and am now ready to tackle something more difficult and exciting. I found a lot of examples of such projects, but I am looking for something new and innovative.

There's a recent thread about neural networks that could use your help... :-)

How about an active noise cancellation system? That could be a fun project, depending on what noise you want to cancel... Street noise, Your dog, Neighbor's dog, etc...