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esp32-c3-mini

A demo LVGL Watch project for ESP32 C3 mini 240*240 touch display development board. Can also be built natively to test the LVGL UI.

Videos

esp32-c3-lvgl.mp4

Screens Preview

Preview

Preview2

Screens

  • Time (Time, Date, Day, Weather[Icon, Temp]) + Custom Watchfaces
  • Installable custom watchfaces from Chronos app ToDo - LVGL 9
  • Weather (City,Icon, Temp, Update time) (1 week forecast [Day, Icon, Temp]) (Hourly forecast [+wind, ])
  • Notifications (Icon, Time, Text) (List [Icon, Text] - 10 notifications) (Incoming call)
  • Settings (Brightness, Timeout, Battery, About)
  • Control (Music Control, Find Phone, Bluetooth State) (Camera Capture)
  • QR Codes, Contacts
  • Games - Simon Says, Racing (Need to enable)
  • Navigation (Get Google Maps Navigation instructions on ESP32)

Building

Select your build environment in platformio.ini by uncommenting only one default_envs

When building for native check that you have configured SDL according to your platform. Follow the instructions here https://github.com/lvgl/lv_platformio?tab=readme-ov-file#install-sdl-drivers

The SDL path might be different depending on your configuration and you will need to update platformio.ini accordingly

Prebuilt Native

The prebuilt native applications have been included in the test folder, however you might still require SDL installed before running them.

You can also find binary files for various boards.

Boards

Boards

Watchfaces

This project supports two types of watchfaces in addition to the default one:

1. External Precompiled Binary Watchfaces

These watchfaces are binary files converted into LVGL code and compiled along with the main code. To add or remove these watchfaces, you need to recompile and flash the firmware.

  • Check out the esp32-lvgl-watchface project for details on converting watchfaces from binary to LVGL code.
  • You can add more watchfaces, but be mindful of the ESP32's flash size limitations. Prioritize compiling only your favorite watchfaces.
  • Links to pre-built binary watchfaces are included. Enable them in app_hal.h according to your build platform.

2. External Installable Binary Watchfaces

  • Work in progress for LVGL 9

This project now supports the installation of binary watchfaces after the initial code compilation and flashing. You can add or remove watchfaces via the Chronos app using BLE. Once transferred to the ESP32, the watchface will be parsed and executed.

  • Ensure there is sufficient storage space on the ESP32 flash. Using the FFAT partition is recommended.

Important

This feature is experimental and may not work 100% reliably. Ensure your partition is mounted successfully for proper functionality.

Warning

This has issues running on ESP32 C3 Mini due to smaller SRAM size Not ported to LVGL 9 yet. Work in progess

Chronos App

This is needed for additional functions on esp32 hardware as listed below.





ChronosESP32 Website

App functions (ESP32)

ChronosESP32 library handles communication with the Chronos app over BLE

  • Sync time
  • Install additional watchfaces LVGL 9 Work in progress
  • Send notifications and call alerts
  • Sync weather info
  • Sync QR Links, & Contacts
  • Music control, find phone & Camera
  • Send Navigation instructions