



I Made an Interactive PCB Map of the East Bay in California
I designed the board in KiCad using the image converter. The roads are copper traces, the water is solder mask, and the bare board is the land. An HUB75 LED matrix panel panel behind the board can draw locations and images. The panel is controlled by an ESP32 getting commands over MQTT from a Python server.
As much of the logic as possible is done on the host side, while the ESP32 code mostly handles configuration and pushing pixels to the display.
I documented the design process at: https://www.robopenguins.com/pcb-map/
The source and design files can be found at: https://github.com/axlan/pcb-map