I just got an order of PCB's in and well, I just gotta show them off...
This is a line follow sensor with onboard i/o expander. All 8 sensors can come in (via i2c) in a nice, clean binary byte while still giving you access to each individual sensor if you like. There are 2 mounting positions allowing a forward posistion for curvy line-follow as well as a "closer to the robot" mount for straight-line maze stuff. If nothing else, I am posting to remind folks that boards do not have to be square! Radius your corners, add some details --Don't be afraid of curves, my friends!
Yes, I know that I could have used those "resistor arrays" instead of (16) individual resistors, but this is the prototype and I wanted to order the fewest number of parts for testing. The final version will be a lot more tidy.
