Hi everyone, I'm using the arduino to measure [45~60] volt DC. I made voltage devider with capacitor parallel to R2 R1= 20k, R2= 1k, C=100uf 16v so this theoretically should able the arduino to measure up to 100 volt (equal to 5 volt on the analog input). but what is happening that the read va…

What current does arduino draw to measure analog value?

UKHeliBob November 25, 2021, 8:57am 2

What is the purpose of the capacitor and what have you got the reference voltage set to ?

As to the current, then why not measure it ?

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