martinverges/womolin-display

A project for the visual representation of the RV sensors as well as the control of functions

WomoLIN Display

This project should result in a control unit of a mobile home. The aim of the project is to display and control the sensors and functions of the motorhome centrally via a touch panel.

The whole thing will work together with WomoLIN to ensure the greatest possible compatibility with different manufacturers.

Current State

It's a working prototype. After installation, it will start and show the Tank status. The status itself comes from a MQTT Server that you need to provide or install on the RPI.

You can change and modify the settings comfortably from the GUI itself by accessing the settings dialog.

Used Hardware

I used my wifi-hotspot Raspberry Pi for the GUI.

• Raspberry PI (I use the 4B with 8GB variant)
• SD card (e.g. SanDisk Extreme Pro 64GB)
• Display (e.g. Waveshare 7inch 1024x600 DSI IPS Touch)

Please note: at the current state, this Project only works on 1024x600 pixel and provides no other configurations.

Installation

Before you can use the software, make sure to have the required system dependencies installed. On Debian or Ubuntu Systems it should be something like:

apt -y install libmosquitto-dev libsdl2-dev

If you want to give it a try, take a look at the INSTALL.md documentation.

Screenshots

Prepare simulator

In order to run it on a simulator, you have to change the Symlink of lv_conf.h, lv_drv_conf.h, and Makefile to simulator.

cd src
git update-index --skip-worktree lv_conf.h lv_drv_conf.h
ln -sf lv_conf.h.simulator lv_conf.h
ln -sf lv_drv_conf.h.simulator lv_drv_conf.h
cd ..
mkdir -p build && cd build
cmake -DCMAKE_BUILD_TYPE=Debug .. && cmake --build .

To run it on the Raspberry PI, please use:

cd src
git update-index --skip-worktree lv_conf.h lv_drv_conf.h
ln -sf lv_conf.h.raspberry lv_conf.h
ln -sf lv_drv_conf.h.raspberry lv_drv_conf.h
cd ..
mkdir -p build && cd build
cmake -DCMAKE_BUILD_TYPE=Release .. && cmake --build .

License

womolin.display (c) by Martin Verges.

womolin.display is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

You should have received a copy of the license along with this work. If not, see http://creativecommons.org/licenses/by-nc-sa/4.0/.

Design

A special thanks to the excellent designer Florian Koczy, who developed the design for this project!