4 layers36 × 26 mm

Nina project
slemanz/nina-project
Integrated hardware and firmware solution for a data acquisition device based on the u-blox NINA-B306 (nRF52840) Open CPU.
43 parts4MIT
Printed circuit boards designed in KiCad and published on GitHub, each with its parts, layers and size, its README and its files; open any of them in PCBKit.

slemanz/nina-project
Integrated hardware and firmware solution for a data acquisition device based on the u-blox NINA-B306 (nRF52840) Open CPU.

slemanz/chronolog
STM32-based temperature data logger with RTC, NOR flash storage, LCD and Wi-Fi. Hardware and firmware.