Jrk G2 Motor Controller User’s Guide

Jrk G2 18v27 USB Motor Controller with Feedback.

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1. Overview

1.1. Supported operating systems

1.2. Comparison to the original Jrk controllers

2. Contacting Pololu

3. Getting started

3.1. Installing Windows drivers and software

3.2. Installing Linux software

3.3. Installing macOS software

4. Basic setup

4.1. Choosing the motor, power supply, and Jrk

4.2. Connecting the motor and power supply

4.3. Configuring and testing the motor

5. Setting up the feedback method

5.1. Setting up open-loop control

5.2. Setting up analog feedback

5.3. Setting up frequency feedback

6. Setting up the control method

6.1. Setting up USB control

6.2. Setting up serial control

6.3. Setting up I²C control

6.4. Setting up analog control

6.5. Setting up RC control

7. Details

7.1. LED feedback

7.2. Graph window

7.3. Analog/RC input handling

7.4. Analog/frequency feedback handling

7.5. PID calculation

7.6. Motor settings

7.7. Error handling

7.8. Logic power output (5V)

7.9. Upgrading firmware

8. Pinout and components

9. Setting reference

10. Variable reference

11. Command reference

12. Serial command encoding

13. I²C command encoding

14. USB command encoding

15. Writing PC software to control the Jrk

15.1. Example code to run jrk2cmd in C

15.2. Example code to run jrk2cmd in Ruby

15.3. Example code to run jrk2cmd in Python

15.4. Running jrk2cmd with Windows shortcuts

15.5. Example serial code for Linux and macOS in C

15.6. Example serial code for Windows in C

15.7. Example serial code in Python

15.8. Example I²C code for Linux in C

15.9. Example I²C code for Linux in Python

15.10. Example I²C code for MicroPython

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