The Landy Gauge project is now available as open source.

What’s Included

  • Firmware — full ESP-IDF source code for the ESP32-S3 gauge
  • Schematics — KiCad circuit designs for the main gauge board and expansion board
  • 3D Models — printable cases for both boards
  • Documentation — build guide, user manual, and this website

Features

The gauge packs a lot into a 1.85" round LCD:

  • Digital compass with magnetometer calibration
  • Tilt meter
  • Inclinometer
  • BLE TPMS tyre pressure monitoring
  • Exhaust gas temperature (K-type thermocouple)
  • Turbo boost pressure
  • Clock with WiFi NTP sync and 34 timezone support
  • Coolant monitoring with fan status
  • Automatic day/night mode
  • Custom vehicle images from SD card
  • Warning audio via I2S amplifier Clock

What’s Next

I’ll be adding more detailed build instructions, wiring diagrams, and photos of the build process over the coming weeks. If you build one, I’d love to hear about it.