BLOOM is a configurable LED matrix used for optogenetic cell stimulation in the MI-DNA Disc project. It's built using off-the-shelf components that are readily available, total cost ~€60.
Heavily inspired by LITOS, right around the time I started working on it, HUB75 LED matrix support was added to WLED-MM. Since WLED runs on many boards and has a JSON API it was easier to rapidly prototype the MVP compared to a custom PCB solution. The case model files can be found in the hardware directory, including sliced 3MF for BambuStudio. There is a custom HTML interface to control the two 96-well microplates with functionality to save/load/import presets, example preset.
- Adafruit MatrixPortal S3 ~€25
- 64x64 LED matrix P3 ~€35
- 3D printed case (~215g of filament):
$ git clone https://github.com/goll/BLOOM.git
$ cd BLOOM/software/WLED
$ mv platformio_override.ini.matrixportal platformio_override.ini
$ mv wled00/my_config_bloom.h wled00/my_config.h
$ npm install
$ npm run build
You will need VSCode and PlatformIO, for more detailed steps visit WLED-MM compiling docs. Connect your MatrixPortal and upload using the adafruit_matrixportal_esp32s3 env. By default it will try to connect to SSID bloom using password bloom123, which should be running as a hotspot on a nearby phone/tablet/laptop. After connecting you can visit http://bloom.local/plates.htm to control the device.
- Add timer functionality
- Support more microplate sizes
- Individual well brightness
- Add mounting plate diffusion grids
- Add top cover to prevent light pollution