Nice little project.
Is the CPU temperature available on these boards or did you add this yourself with an external sensor? I am running Android on a T4 and I have been trying to get this working but no success so far. I might be missing the kernel driver for it. I might need a JNE to get this. The Android OS has a system call but it returns 0 for me.
Quite simple, the CPU temperature "lives" here:
It is very convenient to display it this way:
$ cat / sys / class / thermal / thermal_zone0 / temp | cut -c 1-2
In general, if you are interested, my little crafts can be read here:https://github.com/Pavelectric/Python_GPIO
I think you should add an external one
In general, if you look globally at the board (M4), then no one has such functionality and power.
Now we are working on a project related to SDR Radio (I will show the results a little later).
And all the experiments with GPS, BME280, OLED and other elements are all parts of a large project.
I will definitely share the results and details.