void setup() {
Serial.begin(9600);
pinMode (6, OUTPUT);
}
void loop() {
int sensorValue = analogRead(A4);
Serial.println(analogRead(A4));
int sensorValue2 = pin(6);
float u = (sensorValue * 5) / 1023;
if (u > 2.5)
{
digitalWrite (6, HIGH);
}
else
{
digitalWrite (6, LOW);
}
delay(200);
}