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This will take a while as still waiting on parts but....This gets talked about a lot and I am not so knowledgeable in it all but would like to give it a whirl anyway. As one idea from crazy idea thread which is magnet inside the alcometer. Maybe together we can all get something that kinda works at least.
Basic idea is hall sensors to measure distance of the magnet. There is already an expensive electric hydrometer on market that used this approach so at least it is possible. Just different scale for software to calculate as not linear. The question will be accuracy. If I go into this under the assumption of data logging runs rather than pure accuracy I think its an experiment worth doing. Unless someone here says Im wasting time?
Example someone made gausemeter
is to have a magnet on my fake alcometer stick inside a metal tube. Position a hall sensor on outside and measure how accurate the movement of my magnet is and range. This part will be a mind screw for absolute beginner like me. We want vertical accuracy but magnet strength will shift if it moves horizontally in the parrot as well maybe? Or with poles facing up down will this not matter much. will the sensor work in that orientation etc
For this I just need to order some cheap hall sensors as I dont think I have an analog one.
I want this to output a reading to lcd. So have to learn using hall sensors and lcd. Plenty experiments to copy the code for this on the net.
play with multiple hall sensors and accuracy distance increases.
add a scale for non linear alcohol conversion
To do this need to know plot points along the curve if anyone here has that data.
add temperature probe and make adjustments to final figure based off liquid temp
Usb data logging to pc over time.
options perhaps like adding a button that will cycle what data is displayed on screen avg temp avg % over time. Is there anything that people may need during a run displayed? If two line lcd we can have temp and adjusted % displayed already.