X-Git-Url: https://git.realraum.at/?a=blobdiff_plain;f=rf433ctl%2FDallasTemperature%2Fexamples%2FMultiple%2FMultiple.pde;fp=rf433ctl%2FDallasTemperature%2Fexamples%2FMultiple%2FMultiple.pde;h=2694d077c3fe4ad5924b0c92b4e556ab4475da4c;hb=d28fbe27742a031f5bc5c39cd3b5588a39423162;hp=0000000000000000000000000000000000000000;hpb=b654506283c4f625e5ade66e2bc5eb22ad4d1545;p=svn42.git diff --git a/rf433ctl/DallasTemperature/examples/Multiple/Multiple.pde b/rf433ctl/DallasTemperature/examples/Multiple/Multiple.pde new file mode 100644 index 0000000..2694d07 --- /dev/null +++ b/rf433ctl/DallasTemperature/examples/Multiple/Multiple.pde @@ -0,0 +1,140 @@ +#include +#include + +// 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); + +// arrays to hold device addresses +DeviceAddress insideThermometer, outsideThermometer; + +void setup(void) +{ + // start serial port + Serial.begin(9600); + Serial.println("Dallas Temperature IC Control Library Demo"); + + // Start up the library + sensors.begin(); + + // locate devices on the bus + Serial.print("Locating devices..."); + Serial.print("Found "); + Serial.print(sensors.getDeviceCount(), DEC); + Serial.println(" devices."); + + // report parasite power requirements + Serial.print("Parasite power is: "); + if (sensors.isParasitePowerMode()) Serial.println("ON"); + else Serial.println("OFF"); + + // assign address manually. the addresses below will beed to be changed + // to valid device addresses on your bus. device address can be retrieved + // by using either oneWire.search(deviceAddress) or individually via + // sensors.getAddress(deviceAddress, index) + //insideThermometer = { 0x28, 0x1D, 0x39, 0x31, 0x2, 0x0, 0x0, 0xF0 }; + //outsideThermometer = { 0x28, 0x3F, 0x1C, 0x31, 0x2, 0x0, 0x0, 0x2 }; + + // search for devices on the bus and assign based on an index. ideally, + // you would do this to initially discover addresses on the bus and then + // use those addresses and manually assign them (see above) once you know + // the devices on your bus (and assuming they don't change). + // + // method 1: by index + if (!sensors.getAddress(insideThermometer, 0)) Serial.println("Unable to find address for Device 0"); + if (!sensors.getAddress(outsideThermometer, 1)) Serial.println("Unable to find address for Device 1"); + + // method 2: search() + // search() looks for the next device. Returns 1 if a new address has been + // returned. A zero might mean that the bus is shorted, there are no devices, + // or you have already retrieved all of them. It might be a good idea to + // check the CRC to make sure you didn't get garbage. The order is + // deterministic. You will always get the same devices in the same order + // + // Must be called before search() + //oneWire.reset_search(); + // assigns the first address found to insideThermometer + //if (!oneWire.search(insideThermometer)) Serial.println("Unable to find address for insideThermometer"); + // assigns the seconds address found to outsideThermometer + //if (!oneWire.search(outsideThermometer)) Serial.println("Unable to find address for outsideThermometer"); + + // show the addresses we found on the bus + Serial.print("Device 0 Address: "); + printAddress(insideThermometer); + Serial.println(); + + Serial.print("Device 1 Address: "); + printAddress(outsideThermometer); + Serial.println(); + + // set the resolution to 9 bit + sensors.setResolution(insideThermometer, 9); + sensors.setResolution(outsideThermometer, 9); + + Serial.print("Device 0 Resolution: "); + Serial.print(sensors.getResolution(insideThermometer), DEC); + Serial.println(); + + Serial.print("Device 1 Resolution: "); + Serial.print(sensors.getResolution(outsideThermometer), DEC); + Serial.println(); +} + +// function to print a device address +void printAddress(DeviceAddress deviceAddress) +{ + for (uint8_t i = 0; i < 8; i++) + { + // zero pad the address if necessary + if (deviceAddress[i] < 16) Serial.print("0"); + Serial.print(deviceAddress[i], HEX); + } +} + +// function to print the temperature for a device +void printTemperature(DeviceAddress deviceAddress) +{ + float tempC = sensors.getTempC(deviceAddress); + Serial.print("Temp C: "); + Serial.print(tempC); + Serial.print(" Temp F: "); + Serial.print(DallasTemperature::toFahrenheit(tempC)); +} + +// function to print a device's resolution +void printResolution(DeviceAddress deviceAddress) +{ + Serial.print("Resolution: "); + Serial.print(sensors.getResolution(deviceAddress)); + Serial.println(); +} + +// main function to print information about a device +void printData(DeviceAddress deviceAddress) +{ + Serial.print("Device Address: "); + printAddress(deviceAddress); + Serial.print(" "); + printTemperature(deviceAddress); + Serial.println(); +} + +void loop(void) +{ + // call sensors.requestTemperatures() to issue a global temperature + // request to all devices on the bus + Serial.print("Requesting temperatures..."); + sensors.requestTemperatures(); + Serial.println("DONE"); + + // print the device information + printData(insideThermometer); + printData(outsideThermometer); +} +