I have two EZB-V4's and three IO Tinys (which I really love). I was having an issue with a Sharp IR sensor with the IO Tiny - it just never worked. I changed sensors, redid the wiring, etc and no luck.
Removed the sensor and wired up to one of my EZB-V4s. It works fine. Is there something different in the analog voltages OR is it possible my IO Tiny has a bad port?