Controls a motor by evaluating position feedback from a magnetic encoder
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Based on Atmega328P @ 2 MHz
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Absolute magnetic rotary encoder EMS22A is mounted on the PCB
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Used with JGY-2838 or a similar motor controlled by a two-wire interface
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The two-wire output can be used as serial RX/TX for debugging
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One can use a stepper motor by connecting the two-wire output to a stepper motor driver
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PWM input like a typical servo or serial input (serial version has been chosen as it's more precise than reading the pulse length)
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It provides a feedback to the main controller to determine if the motor is overloaded or stuck
It has been designed as a robust solution for steering the rudder on autonomous boat. The life span has been tested with a worm geared motor JGY-2838.
Ongoing test: 2 million cycles
