+++ /dev/null
-#include <OneWire.h>
-#include <DallasTemperature.h>
-
-// Data wire is plugged into port 2 on the Arduino
-#define ONE_WIRE_BUS 3
-#define TEMPERATURE_PRECISION 9
-
-// 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);
-
-int numberOfDevices; // Number of temperature devices found
-
-DeviceAddress tempDeviceAddress; // We'll use this variable to store a found device address
-
-void setup(void)
-{
- // start serial port
- Serial.begin(9600);
- Serial.println("Dallas Temperature IC Control Library Demo");
-
- // Start up the library
- sensors.begin();
-
- // Grab a count of devices on the wire
- numberOfDevices = sensors.getDeviceCount();
-
- // locate devices on the bus
- Serial.print("Locating devices...");
-
- Serial.print("Found ");
- Serial.print(numberOfDevices, DEC);
- Serial.println(" devices.");
-
- // report parasite power requirements
- Serial.print("Parasite power is: ");
- if (sensors.isParasitePowerMode()) Serial.println("ON");
- else Serial.println("OFF");
-
- // Loop through each device, print out address
- for(int i=0;i<numberOfDevices; i++)
- {
- // Search the wire for address
- if(sensors.getAddress(tempDeviceAddress, i))
- {
- Serial.print("Found device ");
- Serial.print(i, DEC);
- Serial.print(" with address: ");
- printAddress(tempDeviceAddress);
- Serial.println();
-
- Serial.print("Setting resolution to ");
- Serial.println(TEMPERATURE_PRECISION,DEC);
-
- // set the resolution to 9 bit (Each Dallas/Maxim device is capable of several different resolutions)
- sensors.setResolution(tempDeviceAddress, TEMPERATURE_PRECISION);
-
- Serial.print("Resolution actually set to: ");
- Serial.print(sensors.getResolution(tempDeviceAddress), DEC);
- Serial.println();
- }else{
- Serial.print("Found ghost device at ");
- Serial.print(i, DEC);
- Serial.print(" but could not detect address. Check power and cabling");
- }
- }
-
-}
-
-// function to print the temperature for a device
-void printTemperature(DeviceAddress deviceAddress)
-{
- // method 1 - slower
- //Serial.print("Temp C: ");
- //Serial.print(sensors.getTempC(deviceAddress));
- //Serial.print(" Temp F: ");
- //Serial.print(sensors.getTempF(deviceAddress)); // Makes a second call to getTempC and then converts to Fahrenheit
-
- // method 2 - faster
- float tempC = sensors.getTempC(deviceAddress);
- Serial.print("Temp C: ");
- Serial.print(tempC);
- Serial.print(" Temp F: ");
- Serial.println(DallasTemperature::toFahrenheit(tempC)); // Converts tempC to Fahrenheit
-}
-
-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");
-
-
- // Loop through each device, print out temperature data
- for(int i=0;i<numberOfDevices; i++)
- {
- // Search the wire for address
- if(sensors.getAddress(tempDeviceAddress, i))
- {
- // Output the device ID
- Serial.print("Temperature for device: ");
- Serial.println(i,DEC);
-
- // It responds almost immediately. Let's print out the data
- printTemperature(tempDeviceAddress); // Use a simple function to print out the data
- }
- //else ghost device! Check your power requirements and cabling
-
- }
-}
-
-// function to print a device address
-void printAddress(DeviceAddress deviceAddress)
-{
- for (uint8_t i = 0; i < 8; i++)
- {
- if (deviceAddress[i] < 16) Serial.print("0");
- Serial.print(deviceAddress[i], HEX);
- }
-}\r