rePackr
02-15-2018, 12:25 PM
I think for really quick updates to see fluctuations, you need something that will update several times a second, at least 10-20 times. So using a MCU with onboard ADC and updating 100ms loop would give you really accurate results. And you can have all that functionality for about $8-$10 USD, shipped (some assembly required).
Proceed with caution. Knowledge is Power! Literally! 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
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Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Certified 18650 Cell Reclamation Technician
Please come join in general chit-chat and randomness at Discord Chat (channels: general, 3d-printing, linux&coding, 18650, humor, ...)
(this chat is not directly affiliated with SecondLifeStorage; VALID email req'd)
