Hall Effect Sensor for Periodic Error Correction (PEC) on OnStep STM32

This is a short video demonstrating how to use a Hall Effect sensor and a magnet to implement Periodic Error Correction (PEC).

Here is an example on eBay for a standalone 3144 Hall Effect Sensor. And here are the small neodymium magnets.

To configure OnStep for the STM32, change your Config.STM32.h to have the following values:

#define PEC_SENSE_PULLUP
#define PEC_SENSE_STATE LOW

An example test sketch is provided at the end of this page. It lights up an LED when a magnet is detected and is useful for testing magnet and sensor placement.

Download and extract the .zip file, and compile it with the Arduino IDE.