4 layers130 × 25 mm

Current sense
westonb/little-bee-B1
A high performance current & magnetic field probe
113 parts331CC-BY-SA-4.0
Boards in 2 GitHub repositories, designed in KiCad, that use the TMUX1219DBV by Texas Instruments (-40℃~+125℃ 1 1.08V~5.5V 23pF 250MHz 2:1 3Ω SOT-23-6 Analog Switches, Multiplexers ROHS). See how each wires it, with its parts, size, README and files; the TMUX1219DBV’s symbol, footprint and pinout are on its own page.

westonb/little-bee-B1
A high performance current & magnetic field probe

jimbro1000/D32Rev3ConfigController
Remote Configuration Control for Rev 3 Dragon