planning for logging primary fermenter airlock activity with an arduino
I’m beginning to formulate how I would implement a data logger for airlock bubbling activity in a primary fermentation vessel. I’m not exactly sure how I will take a sensor reading from an airlock yet. In a 1 piece double chamber airlock, I could try putting a photo interrupt sensor where the carbon dioxide blows into the second chamber… not sure if that’ll work at all. In a 3-piece airlock, I could try to record up and down movement of the internal piece by bouncing a light beam or something off the top? I dunno exactly what to do. Something tells me I may end up fabricating something else. Simpler is better, so I’ll have to think long and hard about it. In the meantime, I think this is the workflow of data capture and reporting, using an Async Labs WiShield:
