AVR-Chat

----- Original Message ----- 
From: Nailson Roveta
To: AVR-Chat@yahoogroups.com
Sent: Thursday, January 06, 2005 1:53 PM
Subject: [AVR-Chat] ADC in AVR



Dear,

I need to use a sensor of temperature in the avr so that he makes a
decision in agreement with the value (using the entrance A/D). Use
BASCOM, does anybody have some circuit (clue) with that resource? I
am using an attiny15. In the moment use an AT90S4433 connected to a
PC to accompany the value read in the door ADC, I placed a variable
source 0-5V in one of the channels ADC, even so, I am not obtaining
success. when passing the 2,5V all the channels they start to have a
value of 1023. Excuse for English. thank you.


I've just been experimenting with the ADC in the Mega8535, which has a 2.56 
V reference. The '4433 is probably similar, so you will need to attenuate 
your input if you want to measure up to 5V.

Leon 



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