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janpom / davega

Firmware for DAVEga, a device for electronic skateboards that displays data read from VESC based speed controllers.

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firmwareinovesc

This repository contains the firmware and gerber files for the open source DAVEga. For DAVEGA X (not open source), please go to davega.eu.

DAVEga (The VEsc GAuge/GAdget), or Dave for short, displays speed, battery capacity, traveled distance and other useful info retrieved from a VESC based controller.

DAVEga

This repository contains the DAVEga firmware. The gerber files can be downloaded from the gerbers directory or from EasyEDA.

There's a story behind the name, but it's a long one. It all started on esk8 builders. Here's some highlights from the discussion.

Main features

  • speedometer
  • odometer
    • current trip
    • total traveled distance
  • remaining battery capacity
    • battery voltage
    • battery amp-hours remaining
  • VESC fault codes
  • metric or imperial units
  • Arduino compatible FW
  • low HW cost (~$10)
  • known to work well with the VESC FW v3.48 and v3.40
    • previous versions not tested but should work as well unless too old
  • FOCBOX Unity supported

Configuring and installing firmware

The firmware has to be configured for a particular e-skate. At the very least, the information about the wheel size, gearing, and the battery pack has to be provided.

  1. Open the Arduino IDE.
  2. Install the TFT_22_ILI9225 library.
    • Go to https://github.com/Nkawu/TFT_22_ILI9225 and do Clone or download > Download ZIP.
    • Open the Arduino IDE and do Sketch > Include Library > Add ZIP file... Then select the downloaded ZIP file.
  3. Download DAVEga firmware from releases and unzip to your Arduino project directory (typically $HOME/Documents/Arduino/).
  4. Open the davega.ino from Arduino IDE to load the project.
  5. Go to the davega_config.h tab and adjust the configuration to your needs.
  6. Connect DAVEga to your computer using a USB-UART adapter. Make sure you have drivers for the adapter installed. The DIY kit comes with the CP2102 based adapter.
  7. Under Tools, select:
    • Board: Arduino Nano
    • Processor: ATmega328P
    • Port: the port to which the USB-UART is connected (e.g. /dev/cu.SLAB_USBtoUART for CP2102 adapter on a Mac)
  8. Upload.

Configuring the ESC

In the VESC Tool set:

  1. App Settings > General > App to Use: PPM and UART
  2. App Settings > UART > Baudrate: 115200 bps

License

DAVEga firmware and hardware design is released under GNU GPL v3.

Enclosures

3D-printable DAVEga enclosures are available on the Thingiverse.

Links

About

Firmware for DAVEga, a device for electronic skateboards that displays data read from VESC based speed controllers.

firmwareinovesc

License:GNU General Public License v3.0

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