AVR-Chat

hai..
1. Try to capture the noise in the oscilloscope ,the
noise depend on the design of acd circuit ,so it may
have chance to show zero,
2. make ground for  unused channels of ADC.it may stop
 
oscillation in output. 

--- A F <afaupell@yahoo.com> wrote:

> Im using the adc on a mega8 with a 5v LM4050
> precision shunt as an external reference. I am able
> to read the full scale of 0 to 1023, the problem is
> that 0 is returned for any voltage under about
> 0.84v. Is this a limitation of the adc or am I doing
> something wrong? thanks
> 
> --Aaron
> 
> 
>        
>
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