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Issue in Analog input in PIC16F877

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ecaits

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Dear Friends,

I am working on PIC16F877 with hi-tech c compiler.
I have used 0-5V analog input but in field, I am getting 4-20mA output.

Can I use 4-20mA as analog input or I need to convert 4-20mA to equivalent 0-5V??? How can I use it???

Plz suggest me.

Nirav
 

beny

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You should covert 4-20mA to 1-5v, I suggest you to place a 250 Ohms and read the voltage on the resistor.
 

Loosha

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If you want to use 4-20 mA then set the Vref as small possible and input resistor also as low possible
 

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