Haii all ..
I have a doubt with analog inputs in pic16f877a....I have designed a temperature indicator using lm35 and pic 16f877a(AN0 pin used) it is working well also.
I found a scenario that when we connect any of other analog inputs (AN1 to AN7) to VCC then the temperature reading increasing by 15 degree(ie 150 mv).
I measured the voltage at AN0 pin and it not have an increase of 150mv.So the error may be an internal...? How this type of interference occurs. May be this
is a simple question for professional...but i am a beginner ...help me
I have a doubt with analog inputs in pic16f877a....I have designed a temperature indicator using lm35 and pic 16f877a(AN0 pin used) it is working well also.
I found a scenario that when we connect any of other analog inputs (AN1 to AN7) to VCC then the temperature reading increasing by 15 degree(ie 150 mv).
I measured the voltage at AN0 pin and it not have an increase of 150mv.So the error may be an internal...? How this type of interference occurs. May be this
is a simple question for professional...but i am a beginner ...help me