We’re all familiar with getting feedback from a rotating shaft, for which we usually employ a potentiometer or encoder ... the synchro output, and an ESP32 dev board with a little OLED display ...

The trigger sits on a proper bearing, and the sensor is a Hall-effect device on the PCB. The firmware was written in the Arduino IDE, and through the trigger and a rotary encoder all of its ...

engineers can now integrate a fully featured rotary sensor directly on existing shafts without the packaging issues that typically accompany encoders or other through shaft sensing devices.

Would you believe it, the ESP32 popular Wi-Fi and Bluetooth chip has a built-in Hall effect sensor. Espressif Systems makes the chip, and its ESP32 data sheet has nearly no mention of the Hall sensor ...