hobby #50

Fermentation Sensor Logging

Build a microcontroller-based sensor rig that monitors sourdough starter activity in real-time—tracking temperature, CO2 off-gassing, and jar lid pressure—then log the data to visualize fermentation curves and predict peak activity windows. Combines the electronics and data-logging instincts from ham radio and programming with the new fermentation timing skills from sourdough, turning wild yeast behaviour into readable telemetry.

The Jar Started Pinging at Four in the Morning

Six hours after the starter showed life, I had a time-of-flight sensor pointed at it like a balloon payload.

code-a-day tied to this hobby

Smoothing the Noise in Fermentation Data Exponential Smoothing

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