Small question, but I have failed to find the answer: What is the range of values readable on an 08 (yes, not an 08M etc.) by readadc? I was expecting the range to be 0-255 but that doesn't seem to be the case. The pin is looking at the junction of a 10k pulldown and a photo transistor/BC547 darlington pair on the high side. The supply is 3v. Even allowing for Vce(sat) of 250mV for the BC547 I expected to get way more than I am getting.