#define DEVICE_DISCONNECTED_C -127
Может с адресом косяк ?
12 DeviceAddress sensor = {0x28, 0xFF, 0x68, 0x6A, 0x84, 0x16, 0x5, 0x69}; //адрес датчика.
Это вы то же из интернета взяли или отсканировали адрес именно вашего датчика ?
Сначала погоняйте скетч - Arduino-Temperature-Control-Library/Tester.ino at master · milesburton/Arduino-Temperature-Control-Library · GitHub
он должен найти все ваши датчики и показать температуру с них.
127 или -127?
выдает “-127”
Нет связи с датчиком !
погонял скетч [Arduino-Temperature-Control-Library/Tester.ino at master · milesburton/Arduino-Temperature-Control-Library · GitHub](http://out.arduino.ru/? выдает в монитор порта
Requesting temperatures…DONE
Temperature for device: 0
Temp C 73.00 Temp F: 163.40
И всё ? Там в Setup я вижу строки
Serial.print("Found ");
Serial.print(numberOfDevices, DEC);
Serial.println(" devices.");
У вас где вывод о количестве устройств ?
Если устройства обнаружены - должен быть выведен список их адресов …
больше ничего не выдает
это значит он не находит датчик?
Покажите тогда загружаемый вами скетч ! Не может этот скетч что в примере не выводить “шапку” !!!
#include <OneWire.h>
#include <DallasTemperature.h>
// Data wire is plugged into port 2 on the Arduino
#define ONE_WIRE_BUS 2
#define TEMPERATURE_PRECISION 9 // Lower resolution
// 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 TEMPERATURE_PRECISION 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);
if (tempC == DEVICE_DISCONNECTED_C)
{
Serial.println("Error: Could not read temperature data");
return;
}
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);
}
}
Как могут не отобразиться строки 22 31 33 34 35 ???
#include <OneWire.h>
#include <DallasTemperature.h>
// Data wire is plugged into port 2 on the Arduino
#define ONE_WIRE_BUS 2
#define TEMPERATURE_PRECISION 9 // Lower resolution
// 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 (()
{
// 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 TEMPERATURE_PRECISION 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);
if (tempC == DEVICE_DISCONNECTED_C)
{
Serial.println("Error: Could not read temperature data");
return;
}
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);
}
}
скажите, а как проверить датчик годный или нет, он хоть и подключен питание к 3,3 в, но тестером я померил, там около 5 в.
Что ЭТО в 24 строке у вас ???
извините, это так скачалось, а загружаю void setup()
как может не выполниться строка 28 вашего скетча ?
вот то что выдает, внизу виден кусок программы
А если отмотать вывод назад к первым строкам ?
Или добавьте delay(10000) в самый конец setup
в какой номер строки поставить?
85 по вашему скетчу
