Код: Выделить всё
#include "DHTesp.h" // Click here to get the library: http://librarymanager/All#DHTesp
#include <Ticker.h>
#ifndef ESP32
#pragma message(THIS EXAMPLE IS FOR ESP32 ONLY!)
#error Select ESP32 board.
#endif
/**************************************************************/
/* Example how to read DHT sensors from an ESP32 using multi- */
/* tasking. */
/* This example depends on the Ticker library to wake up */
/* the task every 20 seconds */
/**************************************************************/
DHTesp dht;
void tempTask(void *pvParameters);
bool getTemperature();
void triggerGetTemp();
/** Task handle for the light value read task */
TaskHandle_t tempTaskHandle = NULL;
/** Ticker for temperature reading */
Ticker tempTicker;
/** Comfort profile */
ComfortState cf;
/** Flag if task should run */
bool tasksEnabled = false;
/** Pin number for DHT11 data pin */
int dhtPin = 17;
/**
* initTemp
* Setup DHT library
* Setup task and timer for repeated measurement
* @return bool
* true if task and timer are started
* false if task or timer couldn't be started
*/
bool initTemp() {
byte resultValue = 0;
// Initialize temperature sensor
dht.setup(dhtPin, DHTesp::DHT11);
Serial.println("DHT initiated");
// Start task to get temperature
xTaskCreatePinnedToCore(
tempTask, /* Function to implement the task */
"tempTask ", /* Name of the task */
4000, /* Stack size in words */
NULL, /* Task input parameter */
5, /* Priority of the task */
&tempTaskHandle, /* Task handle. */
1); /* Core where the task should run */
if (tempTaskHandle == NULL) {
Serial.println("Failed to start task for temperature update");
return false;
} else {
// Start update of environment data every 20 seconds
tempTicker.attach(20, triggerGetTemp);
}
return true;
}
/**
* triggerGetTemp
* Sets flag dhtUpdated to true for handling in loop()
* called by Ticker getTempTimer
*/
void triggerGetTemp() {
if (tempTaskHandle != NULL) {
xTaskResumeFromISR(tempTaskHandle);
}
}
/**
* Task to reads temperature from DHT11 sensor
* @param pvParameters
* pointer to task parameters
*/
void tempTask(void *pvParameters) {
Serial.println("tempTask loop started");
while (1) // tempTask loop
{
if (tasksEnabled) {
// Get temperature values
getTemperature();
}
// Got sleep again
vTaskSuspend(NULL);
}
}
/**
* getTemperature
* Reads temperature from DHT11 sensor
* @return bool
* true if temperature could be aquired
* false if aquisition failed
*/
bool getTemperature() {
// Reading temperature for humidity takes about 250 milliseconds!
// Sensor readings may also be up to 2 seconds 'old' (it's a very slow sensor)
TempAndHumidity newValues = dht.getTempAndHumidity();
// Check if any reads failed and exit early (to try again).
if (dht.getStatus() != 0) {
Serial.println("DHT11 error status: " + String(dht.getStatusString()));
return false;
}
float heatIndex = dht.computeHeatIndex(newValues.temperature, newValues.humidity);
float dewPoint = dht.computeDewPoint(newValues.temperature, newValues.humidity);
float cr = dht.getComfortRatio(cf, newValues.temperature, newValues.humidity);
String comfortStatus;
switch(cf) {
case Comfort_OK:
comfortStatus = "Comfort_OK";
break;
case Comfort_TooHot:
comfortStatus = "Comfort_TooHot";
break;
case Comfort_TooCold:
comfortStatus = "Comfort_TooCold";
break;
case Comfort_TooDry:
comfortStatus = "Comfort_TooDry";
break;
case Comfort_TooHumid:
comfortStatus = "Comfort_TooHumid";
break;
case Comfort_HotAndHumid:
comfortStatus = "Comfort_HotAndHumid";
break;
case Comfort_HotAndDry:
comfortStatus = "Comfort_HotAndDry";
break;
case Comfort_ColdAndHumid:
comfortStatus = "Comfort_ColdAndHumid";
break;
case Comfort_ColdAndDry:
comfortStatus = "Comfort_ColdAndDry";
break;
default:
comfortStatus = "Unknown:";
break;
};
Serial.println(" T:" + String(newValues.temperature) + " H:" + String(newValues.humidity) + " I:" + String(heatIndex) + " D:" + String(dewPoint) + " " + comfortStatus);
return true;
}
void setup()
{
Serial.begin(115200);
Serial.println();
Serial.println("DHT ESP32 example with tasks");
initTemp();
// Signal end of setup() to tasks
tasksEnabled = true;
}
void loop() {
if (!tasksEnabled) {
// Wait 2 seconds to let system settle down
delay(2000);
// Enable task that will read values from the DHT sensor
tasksEnabled = true;
if (tempTaskHandle != NULL) {
vTaskResume(tempTaskHandle);
}
}
yield();
}#include "DHTesp.h" // Click here to get the library: http://librarymanager/All#DHTesp
#include <Ticker.h>
#ifndef ESP32
#pragma message(THIS EXAMPLE IS FOR ESP32 ONLY!)
#error Select ESP32 board.
#endif
/**************************************************************/
/* Example how to read DHT sensors from an ESP32 using multi- */
/* tasking. */
/* This example depends on the Ticker library to wake up */
/* the task every 20 seconds */
/**************************************************************/
DHTesp dht;
void tempTask(void *pvParameters);
bool getTemperature();
void triggerGetTemp();
/** Task handle for the light value read task */
TaskHandle_t tempTaskHandle = NULL;
/** Ticker for temperature reading */
Ticker tempTicker;
/** Comfort profile */
ComfortState cf;
/** Flag if task should run */
bool tasksEnabled = false;
/** Pin number for DHT11 data pin */
int dhtPin = 17;
/**
* initTemp
* Setup DHT library
* Setup task and timer for repeated measurement
* @return bool
* true if task and timer are started
* false if task or timer couldn't be started
*/
bool initTemp() {
byte resultValue = 0;
// Initialize temperature sensor
dht.setup(dhtPin, DHTesp::DHT11);
Serial.println("DHT initiated");
// Start task to get temperature
xTaskCreatePinnedToCore(
tempTask, /* Function to implement the task */
"tempTask ", /* Name of the task */
4000, /* Stack size in words */
NULL, /* Task input parameter */
5, /* Priority of the task */
&tempTaskHandle, /* Task handle. */
1); /* Core where the task should run */
if (tempTaskHandle == NULL) {
Serial.println("Failed to start task for temperature update");
return false;
} else {
// Start update of environment data every 20 seconds
tempTicker.attach(20, triggerGetTemp);
}
return true;
}
/**
* triggerGetTemp
* Sets flag dhtUpdated to true for handling in loop()
* called by Ticker getTempTimer
*/
void triggerGetTemp() {
if (tempTaskHandle != NULL) {
xTaskResumeFromISR(tempTaskHandle);
}
}
/**
* Task to reads temperature from DHT11 sensor
* @param pvParameters
* pointer to task parameters
*/
void tempTask(void *pvParameters) {
Serial.println("tempTask loop started");
while (1) // tempTask loop
{
if (tasksEnabled) {
// Get temperature values
getTemperature();
}
// Got sleep again
vTaskSuspend(NULL);
}
}
/**
* getTemperature
* Reads temperature from DHT11 sensor
* @return bool
* true if temperature could be aquired
* false if aquisition failed
*/
bool getTemperature() {
// Reading temperature for humidity takes about 250 milliseconds!
// Sensor readings may also be up to 2 seconds 'old' (it's a very slow sensor)
TempAndHumidity newValues = dht.getTempAndHumidity();
// Check if any reads failed and exit early (to try again).
if (dht.getStatus() != 0) {
Serial.println("DHT11 error status: " + String(dht.getStatusString()));
return false;
}
float heatIndex = dht.computeHeatIndex(newValues.temperature, newValues.humidity);
float dewPoint = dht.computeDewPoint(newValues.temperature, newValues.humidity);
float cr = dht.getComfortRatio(cf, newValues.temperature, newValues.humidity);
String comfortStatus;
switch(cf) {
case Comfort_OK:
comfortStatus = "Comfort_OK";
break;
case Comfort_TooHot:
comfortStatus = "Comfort_TooHot";
break;
case Comfort_TooCold:
comfortStatus = "Comfort_TooCold";
break;
case Comfort_TooDry:
comfortStatus = "Comfort_TooDry";
break;
case Comfort_TooHumid:
comfortStatus = "Comfort_TooHumid";
break;
case Comfort_HotAndHumid:
comfortStatus = "Comfort_HotAndHumid";
break;
case Comfort_HotAndDry:
comfortStatus = "Comfort_HotAndDry";
break;
case Comfort_ColdAndHumid:
comfortStatus = "Comfort_ColdAndHumid";
break;
case Comfort_ColdAndDry:
comfortStatus = "Comfort_ColdAndDry";
break;
default:
comfortStatus = "Unknown:";
break;
};
Serial.println(" T:" + String(newValues.temperature) + " H:" + String(newValues.humidity) + " I:" + String(heatIndex) + " D:" + String(dewPoint) + " " + comfortStatus);
return true;
}
void setup()
{
Serial.begin(115200);
Serial.println();
Serial.println("DHT ESP32 example with tasks");
initTemp();
// Signal end of setup() to tasks
tasksEnabled = true;
}
void loop() {
if (!tasksEnabled) {
// Wait 2 seconds to let system settle down
delay(2000);
// Enable task that will read values from the DHT sensor
tasksEnabled = true;
if (tempTaskHandle != NULL) {
vTaskResume(tempTaskHandle);
}
}
yield();
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