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ESP32-Rainmaker-Multidevice/multi_device/main/app_driver.c

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+/*
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+
+#include <sdkconfig.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/timers.h>
+
+#include <iot_button.h>
+#include <esp_rmaker_core.h>
+#include <esp_rmaker_standard_types.h>
+#include <esp_rmaker_standard_params.h>
+
+#include <app_reset.h>
+#include <ws2812_led.h>
+#include "app_priv.h"
+
+/* This is the button that is used for toggling the power */
+#define BUTTON_GPIO          CONFIG_EXAMPLE_BOARD_BUTTON_GPIO
+#define BUTTON_ACTIVE_LEVEL  0
+/* This is the GPIO on which the power will be set */
+#define OUTPUT_GPIO    CONFIG_EXAMPLE_OUTPUT_GPIO
+
+/* These values correspoind to H,S,V = 120,100,10 */
+#define DEFAULT_RED     0
+#define DEFAULT_GREEN   25
+#define DEFAULT_BLUE    0
+
+#define WIFI_RESET_BUTTON_TIMEOUT       3
+#define FACTORY_RESET_BUTTON_TIMEOUT    10
+
+static bool g_power_state = DEFAULT_SWITCH_POWER;
+static float g_temperature = DEFAULT_TEMPERATURE;
+static TimerHandle_t sensor_timer;
+
+static void app_sensor_update(TimerHandle_t handle)
+{
+    static float delta = 0.5;
+    g_temperature += delta;
+    if (g_temperature > 99) {
+        delta = -0.5;
+    } else if (g_temperature < 1) {
+        delta = 0.5;
+    }
+    esp_rmaker_param_update_and_report(
+                esp_rmaker_device_get_param_by_type(temp_sensor_device, ESP_RMAKER_PARAM_TEMPERATURE),
+                esp_rmaker_float(g_temperature));
+}
+
+float app_get_current_temperature()
+{
+    return g_temperature;
+}
+
+esp_err_t app_sensor_init(void)
+{
+    g_temperature = DEFAULT_TEMPERATURE;
+    sensor_timer = xTimerCreate("app_sensor_update_tm", (REPORTING_PERIOD * 1000) / portTICK_PERIOD_MS,
+                            pdTRUE, NULL, app_sensor_update);
+    if (sensor_timer) {
+        xTimerStart(sensor_timer, 0);
+        return ESP_OK;
+    }
+    return ESP_FAIL;
+}
+
+static void app_indicator_set(bool state)
+{
+    if (state) {
+        ws2812_led_set_rgb(DEFAULT_RED, DEFAULT_GREEN, DEFAULT_BLUE);
+    } else {
+        ws2812_led_clear();
+    }
+}
+
+static void app_indicator_init(void)
+{
+    ws2812_led_init();
+    app_indicator_set(g_power_state);
+}
+
+static void push_btn_cb(void *arg)
+{
+    bool new_state = !g_power_state;
+    app_driver_set_state(new_state);
+    esp_rmaker_param_update_and_report(
+                esp_rmaker_device_get_param_by_type(switch_device, ESP_RMAKER_PARAM_POWER),
+                esp_rmaker_bool(new_state));
+}
+
+static void set_power_state(bool target)
+{
+    gpio_set_level(OUTPUT_GPIO, target);
+    app_indicator_set(target);
+}
+
+void app_driver_init()
+{
+    button_handle_t btn_handle = iot_button_create(BUTTON_GPIO, BUTTON_ACTIVE_LEVEL);
+    if (btn_handle) {
+        /* Register a callback for a button tap (short press) event */
+        iot_button_set_evt_cb(btn_handle, BUTTON_CB_TAP, push_btn_cb, NULL);
+        /* Register Wi-Fi reset and factory reset functionality on same button */
+        app_reset_button_register(btn_handle, WIFI_RESET_BUTTON_TIMEOUT, FACTORY_RESET_BUTTON_TIMEOUT);
+    }
+
+    /* Configure power */
+    gpio_config_t io_conf = {
+        .mode = GPIO_MODE_OUTPUT,
+        .pull_up_en = 1,
+    };
+    io_conf.pin_bit_mask = ((uint64_t)1 << OUTPUT_GPIO);
+    /* Configure the GPIO */
+    gpio_config(&io_conf);
+    app_indicator_init();
+    app_sensor_init();
+}
+
+int IRAM_ATTR app_driver_set_state(bool state)
+{
+    if(g_power_state != state) {
+        g_power_state = state;
+        set_power_state(g_power_state);
+    }
+    return ESP_OK;
+}
+
+bool app_driver_get_state(void)
+{
+    return g_power_state;
+}