Hi Irving,

That sounds like a good approach and one I would take re the balanced tranceiver at the read head. Is your small pic down there doing the timing and stripping the word off for transmission. I take it your I2c is bi directional for reset and imperial/metric mode selection as down-link commands?

If all you will end up needing is the reader PCB assembly have you found an import source just to buy these boards on their own?

Have you mounted these readers on your own machined bar that replaces the caliper bar they come with? If so, was there any particular features that you had to accurately emulate to make the capacitive sensor work reliably and accurately. I'm still mystified as to how these things work as a sensor. When I first opened one up I was surprised when I did not find an optical encoder rolling on the bar or other optical solution. Its certainly a neat non contact sensor.

Cheers,

John