4 layers98.7 × 44.7 mm

NanoLogger
TobiasNetzer/nanoLogger
Here is a simplified block diagram of the data logger. To measure the current of a device, the data logger is simply connected in series between the voltage source and the DUT/load.
221 parts
Boards in 1 GitHub repository, designed in KiCad, that use the MMBTH10L by onsemi (-55℃~+150℃ 1 NPN 100nA 225mW 25V 3V 500mV 60 650MHz NPN SOT-23 Bipolar (BJT) ROHS). See how each wires it, with its parts, size, README and files; the MMBTH10L’s symbol, footprint and pinout are on its own page.

TobiasNetzer/nanoLogger
Here is a simplified block diagram of the data logger. To measure the current of a device, the data logger is simply connected in series between the voltage source and the DUT/load.