Ja ,
Verdient hast Du es ja nach dem letzten Kommentar nicht, was soll denn das.
ich hab´s einfach mal probiert hat 10 min gedauert , hättest Du doch auch geschafft.
Also das simpe Beispiel aus der lib um 6 Zeilen erweiter.
Hardware UNO
eine LED , Temp Sensor
Heinz
// Include the libraries we need
#include <OneWire.h>
#include <DallasTemperature.h>
// Data wire is plugged into port 2 on the Arduino
#define ONE_WIRE_BUS 2
byte pwmpin = 3;
// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);
// Pass our oneWire reference to Dallas Temperature.
DallasTemperature sensors(&oneWire);
/*
The setup function. We only start the sensors here
*/
void setup(void)
{
// start serial port
Serial.begin(9600);
Serial.println("Dallas Temperature IC Control Library Demo");
// Start up the library
sensors.begin();
}
/*
Main function, get and show the temperature
*/
void loop(void)
{
// call sensors.requestTemperatures() to issue a global temperature
// request to all devices on the bus
Serial.print("Requesting temperatures...");
sensors.requestTemperatures(); // Send the command to get temperatures
Serial.println("DONE");
// After we got the temperatures, we can print them here.
// We use the function ByIndex, and as an example get the temperature from the first sensor only.
float tempC = sensors.getTempCByIndex(0);
// Check if reading was successful
if (tempC != DEVICE_DISCONNECTED_C)
{
Serial.print("Temperature for the device 1 (index 0) is: ");
Serial.println(tempC);
}
else
{
Serial.println("Error: Could not read temperature data");
}
// das dazu
int stell = tempC * 10-250;// auf int zum Mappen
//Serial.println(stell);
if (stell <0) stell=0;
if (stell >20) stell=20;
int out = map(stell, 0, 20, 0, 255);
analogWrite(pwmpin, out);
}