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DHT11/22 library fix

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Support DHT11/DHT22 modules.
Data representation fix.
Library refactoring.
This commit is contained in:
sheinz 2016-07-06 15:57:00 +03:00
parent 78c5b43a40
commit a41407e3d1
3 changed files with 181 additions and 106 deletions
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35
examples/dht_sensor/dht_sensor.c
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@ -2,6 +2,8 @@
*
* This sample code is in the public domain.
*/
#include <stdio.h>
#include <stdlib.h>
#include "espressif/esp_common.h"
#include "esp/uart.h"
#include "FreeRTOS.h"
@ -13,29 +15,30 @@
* to read and print a new temperature and humidity measurement
* from a sensor attached to GPIO pin 4.
*/
int const dht_gpio = 4;
uint8_t const dht_gpio = 12;
void dhtMeasurementTask(void *pvParameters)
{
int8_t temperature = 0;
int8_t humidity = 0;
int16_t temperature = 0;
int16_t humidity = 0;
// DHT sensors that come mounted on a PCB generally have
// pull-up resistors on the data pin. It is recommended
// to provide an external pull-up resistor otherwise...
gpio_set_pullup(dht_gpio, false, false);
// DHT sensors that come mounted on a PCB generally have
// pull-up resistors on the data pin. It is recommended
// to provide an external pull-up resistor otherwise...
gpio_set_pullup(dht_gpio, false, false);
while(1) {
while(1) {
if (dht_read_data(dht_gpio, &humidity, &temperature)) {
printf("Humidity: %d.%d%% Temp: %d.%dC\n",
humidity / 10, humidity % 10,
temperature / 10, abs(temperature) % 10);
} else {
printf("Could not read data from sensor\n");
}
if (dht_fetch_data(dht_gpio, &humidity, &temperature)) {
printf("Humidity: %i%% Temp: %iC\n", humidity, temperature);
} else {
printf("Could not read data from sensor...");
// Three second delay...
vTaskDelay(3000 / portTICK_RATE_MS);
}
// Three second delay...
vTaskDelay(3000 / portTICK_RATE_MS);
}
}
void user_init(void)