# and button to start/stop and reset the countdown (when held). # Check settings in file app_config.py before running the code. # All examples are provided as is and at user's own risk.

The ESP32 does everything a Pi Pico does, but costs less and lasts 100x longer on batteries ...

Fundamentally, a microscope comprises two subsystems: an illumination system to illuminate the sample and an imaging system that produces a magnified image of the light that has interacted with the ...

The extreme speed at which light moves, and the fact that photons do not tend to interact with transparent matter, is of enormous benefit to mankind. It allows us to see deep into the Universe and to ...