atmega328 current 80-90mA after use analog read

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1

hi
After using the analogRead() command, the atmega328 current increases to 100 mA. How can it be lowered?

2

Something is very wrong, analogRead() doesn't make the chip pull large currents.

You have provided almost no information about your setup, we need much more.

3

I also used Arduino's example. That had the same result

4

If you fail to provide detailed information about the setup you are using, we simply have no way to
figure out how to help you.

5

Before the command is executed, the atmega328 current is below 10 mA, but after running the analogread () it goes up to 80 mA

int sensorPin = A0; // select the input pin for the potentiometer
int ledPin = 13; // select the pin for the LED
int sensorValue = 0; // variable to store the value coming from the sensor

void setup() {
// declare the ledPin as an OUTPUT:
pinMode(ledPin, OUTPUT);
}

void loop() {
// read the value from the sensor:
sensorValue = analogRead(sensorPin);
// turn the ledPin on
digitalWrite(ledPin, HIGH);
// stop the program for milliseconds:
delay(sensorValue);
// turn the ledPin off:
digitalWrite(ledPin, LOW);
// stop the program for for milliseconds:
delay(sensorValue);
}

6

Post a hand drawn (not Fritzing) wiring diagram.

Applying a negative voltage, or voltage > Vcc to the analog input can cause large current draw and destroy the Arduino. What is the voltage on and the resistance value of the potentiometer?

7

Do you have something connected to pin 13?