The idea is based on the OSW light v3.3, but designed from scratch. There are more sensors and size improvements.
The PCB has shrunk in size a little bit.
The buttons have moved inside...
... and the overall thickness has decreased by placing the esp32 directly on the PCB instead of using a module. Moving from 0603 to 0402 left enough space for all components.
A compass has been added, as well as a barometer.
Optionally, you can solder a microSD card slot ot the back of the PCB (adding back to the original thickness)
Testing my new ChronOS...