February 9, 2024
Description
As I used an Arduino Nano instead of the Uno I did not see the necessity for such a large box and decided to lower the overall profile. For a cleaner print I also removed all the engraved letters.
USB-C connector used for voltage supply:
https://www.amazon.de/gp/product/B0CDBZZQBZ
I also decided to rewrite the firmware for the device which now uses interrupts, provides more data on the display and supports a reset of the values by blocking both sensors for a short time.
https://github.com/pumikachu/dart-chrono
License:
Creative Commons — Attribution — Noncommercial