The Pmod specification supports 3.3V and 5V modules with ... amp buffers a 4–20mA current-loop sense voltage on a 200Ω load resistor or a 0.2V to 4.096V voltage signal. The MAX11100 is a 16-bit SAR ...
While I had it all apart to clean the battery gunk out of it, I found that the top battery is wired into the circuit board at a point marked "+1.5V" and bottom battery is wired with reversed ...