Wolbodo Disko Lights

This is the project which runs the DiskoLights.

The DiskoLights is a panel of WS2812 programmable LEDS. Organised in 6 * 4 tiles, where each tile has 16 leds, all connection in series. So a total of 6*4*16 = 384 leds in one chain. The LEDS are organised in a 24 * 16 grid.

The DiskoLights are connected to a ESP32-Wroom board, and can be controlled wirelessly through a web interface.

Development

Sourcecode is available from github.

Below:

• pio is my abbreviation for the platformio-CLI tool.
• pnpm is a node-js package manager, installed using: sudo npm install --global pnpm

Build and upload the controller code ( from the top-level directory ):

pio run -t upload

Build and Upload the website code:

cd frontend

pnpm i          # install dependencies
pnpm run build  # build the frontend code
pnpm run dev    # run fruntend on your development pc

The frontend code will be in the data directory.

You can now upload it to the ESP32 with ( from the top-level directory ):

pio run -t uploadfs

After updating the frontend, you will have to configure the DiskoLights wifi setup:

• connect to DiskoGrid\_AP network with password: interpol.
• select configure, then set the ssid and password for your local network.

Now the DiskoLights can be connected to via this address: http://disko-grid.local/.

source code

• frontend - contains the svelte code for the frontend, which is what the user will talk to in the webinterface.

• lib/ESPAsyncDNSServer-1.0.0 contains the ESPAsyncDNSServer package with a patch replacing the ESPAsyncUDP library with AsyncUDP

• platformio.ini configuration for platformio.

• src/leds.py python script demonstrating the x,y to tile index conversion.

• src/main.cpp The main controller code

• lib/Programs the various ledgrid programs, displaying patterns.

Support libraries:

• lib/EventTimer/eventtimer.h - a bit like the EVERY\_N\_MILLISECONDS macro.
• lib/Graplib/graphlib.h - graphics primitives, based upon the Adafruit-GFXinterface.
• lib/Ledgrid/ledgrid.h - a (x,y) addressable grid to the led-string.
• lib/webserver/webserver.h - the json web api for controlling the DiskoLights.
• lib/wifi/wifisetup.h - handles the wireless network setup.

Programs

• lib/Programs/program.h - the baseclass for each program.

• lib/Programs/Sjoerd.h

• lib/Programs/Sjoerd2.h

• lib/Programs/christmas.h

• lib/Programs/colorsweep.h

• lib/Programs/gradient.h

• lib/Programs/pixelsweep.h

• lib/Programs/rainbow1.h

• lib/Programs/rainbow2.h

• lib/Programs/scene.h

• lib/Programs/spiral.h

• lib/Programs/spots.h