92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
//
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// FILE: readPowerSupply.ino
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.0
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// PURPOSE: demo
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// DATE: 2020-02-10
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//
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// Released to the public domain
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//
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// Include the libraries we need
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#include <OneWire.h>
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#include <DallasTemperature.h>
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// Data wire is plugged into port 2 on the Arduino
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#define ONE_WIRE_BUS 2
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// Setup a oneWire instance to communicate with any OneWire devices
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OneWire oneWire(ONE_WIRE_BUS);
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// Pass our oneWire reference to Dallas Temperature.
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DallasTemperature sensors(&oneWire);
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// arrays to hold device addresses
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DeviceAddress insideThermometer, outsideThermometer;
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// Assign address manually. The addresses below will beed to be changed
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// to valid device addresses on your bus. Device address can be retrieved
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// by using either oneWire.search(deviceAddress) or individually via
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// sensors.getAddress(deviceAddress, index)
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// DeviceAddress insideThermometer = { 0x28, 0x1D, 0x39, 0x31, 0x2, 0x0, 0x0, 0xF0 };
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// DeviceAddress outsideThermometer = { 0x28, 0x3F, 0x1C, 0x31, 0x2, 0x0, 0x0, 0x2 };
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int devCount = 0;
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/*
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* The setup function. We only start the sensors here
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*/
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void setup(void)
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{
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Serial.begin(115200);
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Serial.println("Arduino Temperature Control Library Demo - readPowerSupply");
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sensors.begin();
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devCount = sensors.getDeviceCount();
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Serial.print("#devices: ");
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Serial.println(devCount);
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// report parasite power requirements
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Serial.print("Parasite power is: ");
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if (sensors.readPowerSupply()) Serial.println("ON"); // no address means "scan all devices for parasite mode"
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else Serial.println("OFF");
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// Search for devices on the bus and assign based on an index.
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if (!sensors.getAddress(insideThermometer, 0)) Serial.println("Unable to find address for Device 0");
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if (!sensors.getAddress(outsideThermometer, 1)) Serial.println("Unable to find address for Device 1");
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// show the addresses we found on the bus
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Serial.print("Device 0 Address: ");
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printAddress(insideThermometer);
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Serial.println();
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Serial.print("Power = parasite: ");
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Serial.println(sensors.readPowerSupply(insideThermometer));
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Serial.println();
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Serial.println();
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Serial.print("Device 1 Address: ");
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printAddress(outsideThermometer);
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Serial.println();
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Serial.print("Power = parasite: ");
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Serial.println(sensors.readPowerSupply(outsideThermometer));
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Serial.println();
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Serial.println();
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}
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// function to print a device address
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void printAddress(DeviceAddress deviceAddress)
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{
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for (uint8_t i = 0; i < 8; i++)
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{
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// zero pad the address if necessary
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if (deviceAddress[i] < 0x10) Serial.print("0");
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Serial.print(deviceAddress[i], HEX);
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}
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}
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// empty on purpose
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void loop(void)
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{
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}
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// END OF FILE
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