First result experimenting with my Inkplate 6COLOR I mentioned earlier. It displays the value of our outside air quality sensor.

And as I can confirm, it even updates automatically every 5 minutes! This is cool. I’m a C++ programmer now!

small e-ink tablet. top half of the screen says on green background PM2.5/9.90/Good. lower half has on yellow background PM10/17.08/Moderate.