Image caption, An obtuse angle is between 90° and 180°. Both of these angles are obtuse. Without using a protractor, a good estimate for the first angle is 135° because it is midway between 90 ...

Yaluke has created a Raspberry Pi Pico-powered protractor that can be used to calculate rotation data for simulating steering wheels when driving.

This Pi-powered protractor is intended to be used to calculate rotational angles in real time ... this is the sort of setup you could use to make a controller from scratch. According to Yaluke ...