4 layers71 × 21.6 mm

EMGAmplifier
Arjun-Mahes/EMGAmplifier
made an EMG amplifier PCB from scratch that streams filtered raw and enveloped outputs wirelessly using an ESP32
63 parts
Boards in 3 GitHub repositories, designed in KiCad, that use the INA106U by Texas Instruments (-40℃~+85℃ 0.2uV/℃ 20uV 50V/us 86dB Capacitive load driving、Integrated precision resistor network、Current limiting / short-circuit protection Single-channel SOIC-8 Differential Amplifiers ROHS). See how each wires it, with its parts, size, README and files; the INA106U’s symbol, footprint and pinout are on its own page.

Arjun-Mahes/EMGAmplifier
made an EMG amplifier PCB from scratch that streams filtered raw and enveloped outputs wirelessly using an ESP32

Dirkmeister/MilliOhm-Meter
MilliOhm - Meter PCB based on Scullcons MilliOhm-Meter Design
