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/*
Analog input, analog output, serial output
Reads an analog input pin, maps the result to a range from 0 to 255
and uses the result to set the pulsewidth modulation (PWM) of an output pin.
Also prints the results to the serial monitor.
The circuit:
* potentiometer connected to analog pin 0.
Center pin of the potentiometer goes to the analog pin.
side pins of the potentiometer go to +5V and ground
* LED connected from digital pin 9 to ground
created 29 Dec. 2008
modified 9 Apr 2012
by Tom Igoe
This example code is in the public domain.
*/
// These constants won't change. They're used to give names
// to the pins used:
const int analogInPin = A0; // Analog input pin that the potentiometer is attached to
const int analogOutPin = 9; // Analog output pin that the LED is attached to
int sensorValue = 0; // value read from the pot
int outputValue = 0; // value output to the PWM (analog out)
String inputString = ""; // a String to hold incoming data
bool stringComplete = false; // whether the string is complete
String isdauer ="0";
void setup() {
// initialize serial communications at 9600 bps:
Serial.begin(9600);
pinMode (analogOutPin, OUTPUT);
inputString.reserve(200);
}
void loop() {
// read the analog in value:
sensorValue = analogRead(analogInPin);
// map it to the range of the analog out:
outputValue = map(sensorValue, 0, 1023, 0, 255);
// change the analog out v if (outputValue < inputString )
if ( outputValue < isdauer.toInt() ) {
digitalWrite(analogOutPin, HIGH); }
else {
digitalWrite(analogOutPin, LOW); }
// print the results to the serial monitor:
Serial.print("sensor = " );
Serial.print(sensorValue);
Serial.print("\t output = ");
Serial.println(outputValue);
// wait 2 milliseconds before the next loop
// for the analog-to-digital converter to settle
// after the last reading
// print the string when a newline arrives:
if (stringComplete) {
Serial.println(inputString);
isdauer=inputString;
// clear the string:
inputString = "";
stringComplete = false;
}
delay(1000);
}
/*
SerialEvent occurs whenever a new data comes in the hardware serial RX. This
routine is run between each time loop() runs, so using delay inside loop can
delay response. Multiple bytes of data may be available.
*/
void serialEvent() {
while (Serial.available()) {
// get the new byte:
char inChar = (char)Serial.read();
// add it to the inputString:
inputString += inChar;
// if the incoming character is a newline, set a flag so the main loop can
// do something about it:
if (inChar == '\n') {
stringComplete = true;
}
}
}
@dewomser

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@dewomser dewomser commented Aug 11, 2020

9 = Piepser
A0 = Feuchtefühler
Im Arduinoeditor muß "Neue Zeile" ausgewählt sein, sonst kein Feedback vom geändertem Schaltpunkt (0-255)

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