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The main objective is the development of a wireless controlled lighting matrix for the A-building of the Sontheim campus in Heilbronn, Germany. In addition, this project aims to simplify the process of creating building sized led matrix by being coded modular and adaptable. Below is a simplified overview of the backend stack:
We are using the as our input. Here a webinterface or simple artnet packages can be used to control the matrix. The PixelBridge is then providing the MatrixBridge with
packages. This Bridge is then using
to connected embedded devices, in our case ESP32s.
The ESP32s are using the painlessMesh library to connect to the mesh and do mesh things. Each ESP can have a number of connected LED Strips which are driven via the library. For optimizing costs and keeping the installation stealthy we chose simple 5050 rgb strips and created a driver board with a WS2811 IC.
Each window is represented as one WS2811 pixel. The ESP communicates to the boards via a daisy-chained RS485 Bus.