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nickl111 / beerlogger

Monitor fermentation activity with a Raspberry Pi Zero W and Tilt Hydrometer
MIT License
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Bloop Sensor is not reliable #17

Closed nickl111 closed 6 years ago

nickl111 commented 6 years ago

Something seems to be drifting. It works fine for about 12 hours then either goes crazy or stops being sensitive at all. The reference voltage to the comparator is not changing so it must be either the gpio pin or the peizo circuit somehow.

nickl111 commented 6 years ago

You have wired up the comparator backwards, moron.

nickl111 commented 6 years ago

So, I've rewired it the right way round. I'm not sure how much difference this will make tbh as we are only measuring pulses and this should work either way.

Tbemh i'm not sure why the circuit is working the way it is with a "zone" of activity in the middle and nothing either side. I would have expect a single on/off bifurcation.

nickl111 commented 6 years ago

Seems to be fine now