converting adc value to millivolt

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raman00084

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how can i convert my adc value to Milli-volt in the range of 0-5000mv that is 0-5v
my adc_value changes from 0 - 1023
for example my adc_value is 1023 i must get 5000mv

how can i do this i am a beginner of c kindly help thank you
 

raman00084 said:
how can i convert my adc value to Milli-volt in the range of 0-5000mv that is 0-5v
my adc_value changes from 0 - 1023
for example my adc_value is 1023 i must get 5000mv

how can i do this i am a beginner of c kindly help thank you
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mv_value = (5005 * adc_value) / 1024;
 

Hi
Do this
In put rage 0 - 4.88v

Then Out put multiply by 5
 

5 divided by 1023 is roughly 0.00488V or 4.88mV. So you could just multiply the adc result by 4.88.
 

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