The voltage of the linear Hall is read through the ADC and converted into magnetic induction intensity.
What is measured is the size of the magnetic induction intensity vector perpendicular to the Hall plane and facing the direction of the Hall screen printing.
In other words, if the Hall screen printing faces the N pole facing the N pole, it will be a negative number.
The accuracy is not bad, and it is okay for fun. If you want high accuracy, please use 16 Bit ADC
Bilibili video link: 正在审核
source code is in the attachment
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