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Text: const int analogInPin = A0; // Analog input pin const int pup1 = 2; const int pup2 = 3; const int pup3 = 4; int sensorValue = 0; void setup() { Serial.begin(9600); pinMode(pup1, INPUT); pinMode(pup2, INPUT); pinMode(pup3, INPUT); digitalWrite(pup1, LOW); digitalWrite(pup2, LOW); digitalWrite(pup3, LOW); } void loop() { Serial.print("sensor = " ); pinMode(pup1, OUTPUT); delay(5); sensorValue = analogRead(analogInPin); Serial.print(sensorValue); Serial.print(','); pinMode(pup1, INPUT); pinMode(pup2, OUTPUT); delay(5); sensorValue = analogRead(analogInPin); Serial.print(sensorValue); Serial.print(','); pinMode(pup2, INPUT); pinMode(pup3, OUTPUT); delay(5); sensorValue = analogRead(analogInPin); Serial.print(sensorValue); pinMode(pup3, INPUT); Serial.println(); delay(1000); }