v0.8 - Measurement & regulation

Persistent Calibration Data

• Fluorometer and spectrophotometer calibration data are saved in EEPROM.
• Calibration data are loaded at module startup.
• Recalibration is only required when the system changes, not after every restart.

Parallel and Non-Blocking Processing of Requests

• Some requests involving shared resources (like the cuvette) are enqueued and processed separately in order to not delay unrestricted request.
• If a measurement fails (e.g., the ADC is unavailable because it's sampling OJIP), it is retried later and not dropped.

Regulation for Mixer and Heater

• The heater uses a PI regulation loop, which maintains temperature more precisely with minimal oscillation.
• The maximum temperature of the heater plate is limited to 60 °C.
• The mixer uses proportional regulation, resulting in more precise speed control at higher RPM compared to previous extrapolation methods.

Minor Changes

• Configurable logger via Kconfig.
• Improved watchdog handling to prevent unintended restarts.