Connecting Hall Effect Voltage Sensor CYHVS025A to Arduino nano BLE 33

Thread Starter

gautam023

Joined Apr 26, 2021
19
Hello everyone,

I am trying to connect voltage sensor CYHVS025A to Arduino nano. The sensor specs are here. Arduino nano can only take 3.3V and 7mA on analog pins. The max voltage I will need to measure is 72V. So I don't need full-scale reading here. Is there a way to ensure that my sensor output is below 7mA?
 

ericgibbs

Joined Jan 29, 2010
13,663
hi 023,
Welcome to AAC.
If you use a resistive divider on the output of the Hall sensor, so that the maximum ADC input voltage expected is 3.3V, that should work OK.
If required to protect for over voltage you could add a 3.3V Zener across the lower resistor.
Do you follow OK.?

E
 

Thread Starter

gautam023

Joined Apr 26, 2021
19
hi 023,
Welcome to AAC.
If you use a resistive divider on the output of the Hall sensor, so that the maximum ADC input voltage expected is 3.3V, that should work OK.
If required to protect for over voltage you could add a 3.3V Zener across the lower resistor.
Do you follow OK.?

E
That helps a lot. Thank you
 
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