# ServoEncoder

**Repository Path**: worlderic/ServoEncoder

## Basic Information

- **Project Name**: ServoEncoder
- **Description**: Controls a motor by evaluating position feedback from a magnetic encoder
- **Primary Language**: C++
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-08-04
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# ServoEncoder
Controls a motor by evaluating position feedback from a magnetic encoder

## Features

* Based on Atmega328P @ 2 MHz

* Absolute magnetic rotary encoder EMS22A is mounted on the PCB

* Used with JGY-2838 or a similar motor controlled by a two-wire interface

* The two-wire output can be used as serial RX/TX for debugging

* One can use a stepper motor by connecting the two-wire output to a stepper motor driver

* PWM input like a typical servo or serial input (serial version has been chosen as it's more precise than reading the pulse length)

* It provides a feedback to the main controller to determine if the motor is overloaded or stuck

![ServoEncoder PCB](https://github.com/OpenTransat/ServoEncoder/blob/master/images/servoencoder.jpg "ServoEncoder PCB")

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

## Video: Testing worm drive life span

[![Testing worm drive life span](http://img.youtube.com/vi/ynh-ik3KGtM/0.jpg)](https://www.youtube.com/watch?v=ynh-ik3KGtM)

## Video: The actual application

[![Rudder control: Worm geared motor with a position feedback](http://img.youtube.com/vi/95Na8EOg1Mo/0.jpg)](https://www.youtube.com/watch?v=95Na8EOg1Mo)