Building Firmware for the Custom LCD

TL;DR: If you are upgrading an existing Sensor Watch or Sensor Watch Lite board, you will need to re-flash your board with new firmware to take advantage of the new display. Firmware images are linked below.

All variants of Sensor Watch — Sensor Watch Pro, Sensor Watch Lite and both the green and blue versions of the original Sensor Watch board — have the ability to drive either the classic Casio LCD, or the new custom LCD designed by Oddly Specific Objects and available from Crowd Supply, but you need a firmware image targeted to your display. Your two options are to download a pre-built firmware image, or to build your own custom firmware with support for the custom LCD.

Boards ordered on Crowd Supply ship with a special firmware image that can support both displays, but we still highly recommend replacing that firmware with a version targeted to your chosen display.

Flashing Pre-Built Firmware

For the sake of convenience, a pre-built firmware image for the standard Second Movement firmware is provided here. Select the firmware image that matches your board variant and your choice of LCD:

• Sensor Watch Lite
  1. Original Casio display
  2. New Custom LCD
• Sensor Watch Pro
  1. Original Casio display
  2. New Custom LCD
• Sensor Watch Classic (green boards)
  1. Original Casio display
  2. New Custom LCD
• Limited Edition Sensor Watch (blue boards)
  1. Original Casio display
  2. New Custom LCD

More custom firmware images are available on the Prebuilt Alternative Firmware page.

Building Custom Firmware

If you want to use watch faces not available in the prebuilt images, uou can also clone the Second Movement repository and build your own firmware image. Make sure to add DISPLAY=classic or DISPLAY=custom as a flag to make; this will ensure that the built firmware image targets the display you have installed.

Second Movement Builder

We are working on a web-based GUI for point-and-click generation of Sensor Watch firmware images.

Watch this space!