hello all, I am using atmega328(without arduino,but programmed using arduino) in my project where in I am checking input from sensor on analog pin. if it is HIGH necessary action is taken. But even when no input is given by sensor,atmega shows HIGH signal. Is this related to analog reference?

analog reference

system February 10, 2013, 12:23pm 3

Actually I am getting HIGH when it should return LOW.

Topic		Replies	Views
My inputs seem to be HIGH by default... Troubleshooting	13	4530	May 6, 2021
Oddball arduino digitalRead() analogRead() inputs Sensors	17	7469	May 6, 2021
Inputs always high IDE 1.x	13	5151	May 5, 2021
PinInput High & Low Problem, less Voltage Sensors	3	633	May 6, 2021
AnalogRead on DigitalPins IDE 1.x	12	3856	May 5, 2021