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IoT Motor Firmware

by OpenMYR

Source code for firmware designed to drive various MYR motor controllers with an ESP8266-based platform.

  • Software by Brandon Brown and Kyle Berezin (MIT License)
  • Hardware design by Chris Adams (CERN Hardware License Version 1.2)

Features

Reconfiguration of the WiFi mode and softAP login is supported via the built-in web server.

Borrows From

Driver Support

  • An array of up to 4 180-degree servo motors
  • Stepper motors

Future Support

  • DC motor
  • Encoded DC Motor
  • ... and many more

Building and Flashing

Compiling this project requires the esp-open-sdk, as well as SCons.

  • scons flash-quad flashes the WiFi Hobby Servo Controller firmware, rebuilding if necessary
  • scons flash-stepper flashes the WiFi Stepper Motor firmware, rebuilding if necessary
  • scons builds both versions of the firmware
  • scons quad builds the WiFi Hobby Servo Controller firmware
  • scons stepper builds the WiFi Stepper Motor firmware
  • scons -c cleans all builds
  • scons -c quad cleans the WiFi Hobby Servo Controller build
  • scons -c stepper cleans the WiFi Stepper Motor build

The "flash-quad" and "flash-servo" commands are intended to be used on Raspberry Pi 2, as the GPIO port can be used to communicate directly with the ESP8266 without the use of a USB device. To use the Pi with the ESP8266, disable serial port login and serial bootup info. The ESP8266 can then be used with the /dev/ttyAMA0 port for both burning and serial communications. For more information, see this guide.