SDO Milliohm Meter v1

Five PCBs came from PCBway. I've put the first one together. A few changes were necessary, but with the it works! The boards turned out to be a bit too wide (Y direction on the PCB) to fit between the front and back panel of the enclosure. Had to sand them down a bit. There's plenty of margin to accommodate it.

The PCBs look real nice!

Just to see how close to reality the idea was, I put together the current source and the sense amplifier using a dual LM2904 on a protoboard. It behaved reasonably close to what was required, and I proceeded with a PCB layout for v1 rev 1.