MODI Building (3)

​Significant progress on the design of the MODI building.

I have designed a controller for the six displays that will be in the arches of the building’s lobby. The six screens will display the same video (as in the prototype).

They are all connected to an ESP32-S3 module, a microcontroller able to uncompress low resolution mjpeg (motion jpeg) video in real-time. In this project, I have stored two minutes of 40 x 72 pixels, RGB, 30 fps video in the ESP32’s 3MB flash memory (that’s just 3MB, not 3GB :-)). The project does not require any external memory.

This is the first time I design a controller board for TFT LCD displays. Although I have their datasheet (see previous posts), it took me some time to understand how to use them and figure out the different voltages required to power them. The PCBA has been manufactured by jlcpcb.com, and I always appreciate their assistance.

Next step is to 3D print the foundations and the lobby of the building. Stay tuned!