Spectrogram

It's a 36 LED stack of neopixels joy with an integrated microphone, running MicroPython:

• Audio reactive LEDs
• Acrylic-ready, to show off your creative animations
• Stepped structure to elimate gaps between edge-lit panels
• Touch-enabled to switch between all its range of features

Building

To build the firmware it helps to use mpbuild like so, since this hardware will not work without ulab:

$ git clone https://github.com/mattytrentini/mpbuild && cd mpbuild
$ git clone https://github.com/v923z/micropython-ulab ulab
$ python3 -mvenv .venv && source .venv/bin/activate && pip install -e .
(.venv)$ mpbuild build ESP32_GENERIC_S3 FLASH_4M USER_C_MODULES=$PWD/ulab/code/micropython.cmake all

The resulting object you want to flash with the esptool.py command from the previous section is typically named firmware.bin.

Running

cd software/micropython
./run.sh

Closeup

Uoooohhh