2 layers78.7 × 57.2 mm

Level shifter
OpenElectronicsLab/level-shifter
a 5V to 3.3V level shifter with a single-sided PCB design simple enough that it can be etched at home
8 parts3
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.

OpenElectronicsLab/level-shifter
a 5V to 3.3V level shifter with a single-sided PCB design simple enough that it can be etched at home

OpenElectronicsLab/OpenHardwareExG
The OpenHardwareExG is a platform for ECG, EEG, EMG, ENG, EOG, and evoked potential applications. http://openelectronicslab.github.io/OpenHardwareExG/

OpenElectronicsLab/OpenHardwareExG
The OpenHardwareExG is a platform for ECG, EEG, EMG, ENG, EOG, and evoked potential applications. http://openelectronicslab.github.io/OpenHardwareExG/