Quote Originally Posted by Voicecoil View Post
This was 'scoping it at the controller end or your RS485 board? What sort of signal levels were you getting?
At the '485 board, which meant resting the scope on a bin, and leaning over the horizontal band saw whilst trying to set the math function up on a scope with a crap rotary encoder for the function setting. The waveforms were pretty much 5Vpk-pk though I wasn't really paying too much attention to that. Call it 2 and a bit divisions, and cramp in my calf.