add dht dependency

main/CMakeLists.txt

@@ -1,5 +1,5 @@
 file(GLOB_RECURSE srcs "main.c" "src/*.c")
 
 idf_component_register(SRCS "${srcs}"
-                       PRIV_REQUIRES bt nvs_flash esp_driver_gpio
+                       PRIV_REQUIRES bt nvs_flash esp_driver_gpio dht
                        INCLUDE_DIRS "./include")

main/include/temp.h

@@ -4,12 +4,16 @@
 /* Includes */
 /* ESP APIs */
 #include "esp_random.h"
+#include "dht.h"
 
 /* Defines */
 #define HEART_RATE_TASK_PERIOD (1000 / portTICK_PERIOD_MS)
+#define DHT_GPIO_PIN 23
+#define DHT_SENSOR_TIPO DHT_TYPE_DHT11
 
 /* Public function declarations */
-uint8_t get_heart_rate(void);
+uint8_t get_temp(void);
-void update_heart_rate(void);
+void update_temp(void);
+void init_sensor(void);
 
 #endif // HEART_RATE_H

main/main.c

@@ -2,7 +2,7 @@
 #include "common.h"
 #include "gap.h"
 #include "gatt_svc.h"
-#include "heart_rate.h"
+#include "temp.h"
 #include "led.h"
 
 /* Library function declarations */
@@ -59,8 +59,8 @@ static void heart_rate_task(void *param) {
     /* Loop forever */
     while (1) {
         /* Update heart rate value every 1 second */
-        update_heart_rate();
+        update_temp();
-        ESP_LOGI(TAG, "heart rate updated to %d", get_heart_rate());
+        ESP_LOGI(TAG, "heart rate updated to %d", get_temp());
 
         /* Send heart rate indication if enabled */
         send_heart_rate_indication();

main/src/gatt_svc.c

@@ -1,7 +1,7 @@
 /* Includes */
 #include "gatt_svc.h"
 #include "common.h"
-#include "heart_rate.h"
+#include "temp.h"
 #include "led.h"
 
 /* Private function declarations */
@@ -87,7 +87,7 @@ static int heart_rate_chr_access(uint16_t conn_handle, uint16_t attr_handle,
         /* Verify attribute handle */
         if (attr_handle == heart_rate_chr_val_handle) {
             /* Update access buffer value */
-            heart_rate_chr_val[1] = get_heart_rate();
+            heart_rate_chr_val[1] = get_temp();
             rc = os_mbuf_append(ctxt->om, &heart_rate_chr_val,
                                 sizeof(heart_rate_chr_val));
             return rc == 0 ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES;

main/src/heart_rate_mock.c

@@ -1,11 +0,0 @@
-/* Includes */
-#include "common.h"
-#include "heart_rate.h"
-
-/* Private variables */
-static uint8_t heart_rate;
-
-/* Public functions */
-uint8_t get_heart_rate(void) { return heart_rate; }
-
-void update_heart_rate(void) { heart_rate = 60 + (uint8_t)(esp_random() % 21); }

main/src/temp.c

@@ -0,0 +1,20 @@
+/* Includes */
+#include "common.h"
+#include "temp.h"
+#include "driver/gpio.h"
+
+/* Private variables */
+static uint8_t heart_rate;
+
+/* Public functions */
+uint8_t get_temp(void) { return heart_rate; }
+
+void update_temp(void) { heart_rate = 60 + (uint8_t)(esp_random() % 21); }
+
+void init_sensor(void) {
+    // DHT PULL up resistor config
+    gpio_set_direction(DHT_GPIO_PIN, GPIO_MODE_INPUT);
+    gpio_pullup_en(DHT_GPIO_PIN);
+
+    printf("DHT sensor config init, pull up resistor and pin: %d\n", DHT_GPIO_PIN);
+}