Take spectrometer readings (between OD readings) from the Adafruit AS7341 attached to your Pioreactor
Project description
Spectrometer reading plugin
Records spectrometer readings from the Adafruit AS7341 spectrometer sensor attached to your Pioreactor.
Available wavelengths:
415nm445nm480nm515nm555nm590nm630nm680nm
This plugin also installs a SQL table, as7341_spectrum_readings, that will store the readings.
After plugin installation, a reboot of the Pioreactor leader is necessary
Hardware installation
See notes here.
How it works
- In between optical density recordings, the white-light LED on the AS7341 board turns on.
- The light is reflected back towards the board, with some wavelengths being absorbed by the culture.
- All sensors for each wavelength are recorded to MQTT and the SQLite3 database (see below)
- The LED is turned off.
Each wavelength is sent to MQTT under the topics:
pioreactor/<unit>/<experiment>/spectrometer_reading/band_<xxx>
And it is also placed in the SQL table as7341_spectrum_readings.
Hardware requirements
- Requires the Adafruit board AS7341 and a StemmaQT 4pin cable.
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