Bernat, Kathy, and I can answer questions about MicroBlocks. I'd also love to compare notes with others who are using microcontrollers, sensors, actuators, NeoPixels, robots -- anything that connects to the physical world. I had been planning to submit my own BoF proposal but yours is exactly what I had in mind! I've invited Tom Lauwers, Bambi, Bernat, and Kathy to join us and I hope Verena Konrad (Microcomputers in Physics), Andreas Gräfl (Microcontroller Starter Kit), and Glen, James, and Jo from the Make to Learn team will also join us. I'm looking forward to sharing ideas with everyone!
P.S. Just skimmed your paper. Nice trick to measure voltage and current at the same time. Projects like the one you did have become easier and cheaper with the widespread adoption of micro:bit and blocks languages to program it.