int main(int argc, char** argv) {
IoT_Error_t rc = NONE_ERROR;
int32_t i = 0;
MQTTClient_t mqttClient;
aws_iot_mqtt_init(&mqttClient);
char JsonDocumentBuffer[MAX_LENGTH_OF_UPDATE_JSON_BUFFER];
size_t sizeOfJsonDocumentBuffer = sizeof(JsonDocumentBuffer) / sizeof(JsonDocumentBuffer[0]);
char *pJsonStringToUpdate;
float temperature = 0.0;
bool windowOpen = false;
jsonStruct_t windowActuator;
windowActuator.cb = windowActuate_Callback;
windowActuator.pData = &windowOpen;
windowActuator.pKey = "windowOpen";
windowActuator.type = SHADOW_JSON_BOOL;
jsonStruct_t temperatureHandler;
temperatureHandler.cb = NULL;
temperatureHandler.pKey = "temperature";
temperatureHandler.pData = &temperature;
temperatureHandler.type = SHADOW_JSON_FLOAT;
char rootCA[PATH_MAX + 1];
char clientCRT[PATH_MAX + 1];
char clientKey[PATH_MAX + 1];
char CurrentWD[PATH_MAX + 1];
char cafileName[] = AWS_IOT_ROOT_CA_FILENAME;
char clientCRTName[] = AWS_IOT_CERTIFICATE_FILENAME;
char clientKeyName[] = AWS_IOT_PRIVATE_KEY_FILENAME;
parseInputArgsForConnectParams(argc, argv);
INFO("\nAWS IoT SDK Version(dev) %d.%d.%d-%s\n", VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH, VERSION_TAG);
getcwd(CurrentWD, sizeof(CurrentWD));
sprintf(rootCA, "%s/%s/%s", CurrentWD, certDirectory, cafileName);
sprintf(clientCRT, "%s/%s/%s", CurrentWD, certDirectory, clientCRTName);
sprintf(clientKey, "%s/%s/%s", CurrentWD, certDirectory, clientKeyName);
DEBUG("Using rootCA %s", rootCA);
DEBUG("Using clientCRT %s", clientCRT);
DEBUG("Using clientKey %s", clientKey);
ShadowParameters_t sp = ShadowParametersDefault;
sp.pMyThingName = AWS_IOT_MY_THING_NAME;
sp.pMqttClientId = AWS_IOT_MQTT_CLIENT_ID;
sp.pHost = HostAddress;
sp.port = port;
sp.pClientCRT = clientCRT;
sp.pClientKey = clientKey;
sp.pRootCA = rootCA;
INFO("Shadow Init");
rc = aws_iot_shadow_init(&mqttClient);
INFO("Shadow Connect");
rc = aws_iot_shadow_connect(&mqttClient, &sp);
if (NONE_ERROR != rc) {
ERROR("Shadow Connection Error %d", rc);
}
rc = aws_iot_shadow_register_delta(&mqttClient, &windowActuator);
if (NONE_ERROR != rc) {
ERROR("Shadow Register Delta Error");
}
temperature = STARTING_ROOMTEMPERATURE;
// loop and publish a change in temperature
while (NONE_ERROR == rc) {
rc = aws_iot_shadow_yield(&mqttClient, 200);
INFO("\n=======================================================================================\n");
INFO("On Device: window state %s", windowOpen?"true":"false");
simulateRoomTemperature(&temperature);
rc = aws_iot_shadow_init_json_document(JsonDocumentBuffer, sizeOfJsonDocumentBuffer);
if (rc == NONE_ERROR) {
rc = aws_iot_shadow_add_reported(JsonDocumentBuffer, sizeOfJsonDocumentBuffer, 2, &temperatureHandler,
&windowActuator);
if (rc == NONE_ERROR) {
rc = aws_iot_finalize_json_document(JsonDocumentBuffer, sizeOfJsonDocumentBuffer);
if (rc == NONE_ERROR) {
INFO("Update Shadow: %s", JsonDocumentBuffer);
rc = aws_iot_shadow_update(&mqttClient, AWS_IOT_MY_THING_NAME, JsonDocumentBuffer, ShadowUpdateStatusCallback,
NULL, 4, true);
}
}
}
INFO("*****************************************************************************************\n");
sleep(1);
}
if (NONE_ERROR != rc) {
ERROR("An error occurred in the loop %d", rc);
}
INFO("Disconnecting");
rc = aws_iot_shadow_disconnect(&mqttClient);
if (NONE_ERROR != rc) {
ERROR("Disconnect error %d", rc);
}
return rc;
}
int main(int argc, char **argv) {
IoT_Error_t rc = FAILURE;
int32_t i = 0;
char JsonDocumentBuffer[MAX_LENGTH_OF_UPDATE_JSON_BUFFER];
size_t sizeOfJsonDocumentBuffer = sizeof(JsonDocumentBuffer) / sizeof(JsonDocumentBuffer[0]);
char *pJsonStringToUpdate;
float temperature = 0.0;
bool windowOpen = false;
jsonStruct_t windowActuator;
windowActuator.cb = windowActuate_Callback;
windowActuator.pData = &windowOpen;
windowActuator.dataLength = sizeof(bool);
windowActuator.pKey = "windowOpen";
windowActuator.type = SHADOW_JSON_BOOL;
jsonStruct_t temperatureHandler;
temperatureHandler.cb = NULL;
temperatureHandler.pKey = "temperature";
temperatureHandler.pData = &temperature;
temperatureHandler.dataLength = sizeof(float);
temperatureHandler.type = SHADOW_JSON_FLOAT;
char rootCA[PATH_MAX + 1];
char clientCRT[PATH_MAX + 1];
char clientKey[PATH_MAX + 1];
char CurrentWD[PATH_MAX + 1];
IOT_INFO("\nAWS IoT SDK Version %d.%d.%d-%s\n", VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH, VERSION_TAG);
getcwd(CurrentWD, sizeof(CurrentWD));
snprintf(rootCA, PATH_MAX + 1, "%s/%s/%s", CurrentWD, certDirectory, AWS_IOT_ROOT_CA_FILENAME);
snprintf(clientCRT, PATH_MAX + 1, "%s/%s/%s", CurrentWD, certDirectory, AWS_IOT_CERTIFICATE_FILENAME);
snprintf(clientKey, PATH_MAX + 1, "%s/%s/%s", CurrentWD, certDirectory, AWS_IOT_PRIVATE_KEY_FILENAME);
IOT_DEBUG("rootCA %s", rootCA);
IOT_DEBUG("clientCRT %s", clientCRT);
IOT_DEBUG("clientKey %s", clientKey);
parseInputArgsForConnectParams(argc, argv);
// initialize the mqtt client
AWS_IoT_Client mqttClient;
ShadowInitParameters_t sp = ShadowInitParametersDefault;
sp.pHost = AWS_IOT_MQTT_HOST;
sp.port = AWS_IOT_MQTT_PORT;
sp.pClientCRT = clientCRT;
sp.pClientKey = clientKey;
sp.pRootCA = rootCA;
sp.enableAutoReconnect = false;
sp.disconnectHandler = NULL;
IOT_INFO("Shadow Init");
rc = aws_iot_shadow_init(&mqttClient, &sp);
if(SUCCESS != rc) {
IOT_ERROR("Shadow Connection Error");
return rc;
}
ShadowConnectParameters_t scp = ShadowConnectParametersDefault;
scp.pMyThingName = AWS_IOT_MY_THING_NAME;
scp.pMqttClientId = AWS_IOT_MQTT_CLIENT_ID;
scp.mqttClientIdLen = (uint16_t) strlen(AWS_IOT_MQTT_CLIENT_ID);
IOT_INFO("Shadow Connect");
rc = aws_iot_shadow_connect(&mqttClient, &scp);
if(SUCCESS != rc) {
IOT_ERROR("Shadow Connection Error");
return rc;
}
/*
* Enable Auto Reconnect functionality. Minimum and Maximum time of Exponential backoff are set in aws_iot_config.h
* #AWS_IOT_MQTT_MIN_RECONNECT_WAIT_INTERVAL
* #AWS_IOT_MQTT_MAX_RECONNECT_WAIT_INTERVAL
*/
rc = aws_iot_shadow_set_autoreconnect_status(&mqttClient, true);
if(SUCCESS != rc) {
IOT_ERROR("Unable to set Auto Reconnect to true - %d", rc);
return rc;
}
rc = aws_iot_shadow_register_delta(&mqttClient, &windowActuator);
if(SUCCESS != rc) {
IOT_ERROR("Shadow Register Delta Error");
}
temperature = STARTING_ROOMTEMPERATURE;
// loop and publish a change in temperature
while(NETWORK_ATTEMPTING_RECONNECT == rc || NETWORK_RECONNECTED == rc || SUCCESS == rc) {
rc = aws_iot_shadow_yield(&mqttClient, 200);
if(NETWORK_ATTEMPTING_RECONNECT == rc) {
sleep(1);
// If the client is attempting to reconnect we will skip the rest of the loop.
continue;
}
IOT_INFO("\n=======================================================================================\n");
IOT_INFO("On Device: window state %s", windowOpen ? "true" : "false");
simulateRoomTemperature(&temperature);
rc = aws_iot_shadow_init_json_document(JsonDocumentBuffer, sizeOfJsonDocumentBuffer);
if(SUCCESS == rc) {
rc = aws_iot_shadow_add_reported(JsonDocumentBuffer, sizeOfJsonDocumentBuffer, 2, &temperatureHandler,
&windowActuator);
if(SUCCESS == rc) {
rc = aws_iot_finalize_json_document(JsonDocumentBuffer, sizeOfJsonDocumentBuffer);
if(SUCCESS == rc) {
IOT_INFO("Update Shadow: %s", JsonDocumentBuffer);
rc = aws_iot_shadow_update(&mqttClient, AWS_IOT_MY_THING_NAME, JsonDocumentBuffer,
ShadowUpdateStatusCallback, NULL, 4, true);
}
}
}
IOT_INFO("*****************************************************************************************\n");
sleep(1);
}
if(SUCCESS != rc) {
IOT_ERROR("An error occurred in the loop %d", rc);
}
IOT_INFO("Disconnecting");
rc = aws_iot_shadow_disconnect(&mqttClient);
if(SUCCESS != rc) {
IOT_ERROR("Disconnect error %d", rc);
}
return rc;
}
void aws_iot_task(void *param) {
IoT_Error_t rc = FAILURE;
char JsonDocumentBuffer[MAX_LENGTH_OF_UPDATE_JSON_BUFFER];
size_t sizeOfJsonDocumentBuffer = sizeof(JsonDocumentBuffer) / sizeof(JsonDocumentBuffer[0]);
float temperature = 0.0;
bool windowOpen = false;
jsonStruct_t windowActuator;
windowActuator.cb = windowActuate_Callback;
windowActuator.pData = &windowOpen;
windowActuator.pKey = "windowOpen";
windowActuator.type = SHADOW_JSON_BOOL;
jsonStruct_t temperatureHandler;
temperatureHandler.cb = NULL;
temperatureHandler.pKey = "temperature";
temperatureHandler.pData = &temperature;
temperatureHandler.type = SHADOW_JSON_FLOAT;
ESP_LOGI(TAG, "AWS IoT SDK Version %d.%d.%d-%s", VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH, VERSION_TAG);
// initialize the mqtt client
AWS_IoT_Client mqttClient;
ShadowInitParameters_t sp = ShadowInitParametersDefault;
sp.pHost = AWS_IOT_MQTT_HOST;
sp.port = AWS_IOT_MQTT_PORT;
#if defined(CONFIG_EXAMPLE_EMBEDDED_CERTS)
sp.pClientCRT = (const char *)certificate_pem_crt_start;
sp.pClientKey = (const char *)private_pem_key_start;
sp.pRootCA = (const char *)aws_root_ca_pem_start;
#elif defined(CONFIG_EXAMPLE_FILESYSTEM_CERTS)
sp.pClientCRT = DEVICE_CERTIFICATE_PATH;
sp.pClientKey = DEVICE_PRIVATE_KEY_PATH;
sp.pRootCA = ROOT_CA_PATH;
#endif
sp.enableAutoReconnect = false;
sp.disconnectHandler = NULL;
#ifdef CONFIG_EXAMPLE_SDCARD_CERTS
ESP_LOGI(TAG, "Mounting SD card...");
sdmmc_host_t host = SDMMC_HOST_DEFAULT();
sdmmc_slot_config_t slot_config = SDMMC_SLOT_CONFIG_DEFAULT();
esp_vfs_fat_sdmmc_mount_config_t mount_config = {
.format_if_mount_failed = false,
.max_files = 3,
};
sdmmc_card_t* card;
esp_err_t ret = esp_vfs_fat_sdmmc_mount("/sdcard", &host, &slot_config, &mount_config, &card);
if (ret != ESP_OK) {
ESP_LOGE(TAG, "Failed to mount SD card VFAT filesystem.");
abort();
}
#endif
/* Wait for WiFI to show as connected */
xEventGroupWaitBits(wifi_event_group, CONNECTED_BIT,
false, true, portMAX_DELAY);
ESP_LOGI(TAG, "Shadow Init");
rc = aws_iot_shadow_init(&mqttClient, &sp);
if(SUCCESS != rc) {
ESP_LOGE(TAG, "aws_iot_shadow_init returned error %d, aborting...", rc);
abort();
}
ShadowConnectParameters_t scp = ShadowConnectParametersDefault;
scp.pMyThingName = CONFIG_AWS_EXAMPLE_THING_NAME;
scp.pMqttClientId = CONFIG_AWS_EXAMPLE_CLIENT_ID;
scp.mqttClientIdLen = (uint16_t) strlen(CONFIG_AWS_EXAMPLE_CLIENT_ID);
ESP_LOGI(TAG, "Shadow Connect");
rc = aws_iot_shadow_connect(&mqttClient, &scp);
if(SUCCESS != rc) {
ESP_LOGE(TAG, "aws_iot_shadow_connect returned error %d, aborting...", rc);
abort();
}
/*
* Enable Auto Reconnect functionality. Minimum and Maximum time of Exponential backoff are set in aws_iot_config.h
* #AWS_IOT_MQTT_MIN_RECONNECT_WAIT_INTERVAL
* #AWS_IOT_MQTT_MAX_RECONNECT_WAIT_INTERVAL
*/
rc = aws_iot_shadow_set_autoreconnect_status(&mqttClient, true);
if(SUCCESS != rc) {
ESP_LOGE(TAG, "Unable to set Auto Reconnect to true - %d, aborting...", rc);
abort();
}
rc = aws_iot_shadow_register_delta(&mqttClient, &windowActuator);
if(SUCCESS != rc) {
ESP_LOGE(TAG, "Shadow Register Delta Error");
}
temperature = STARTING_ROOMTEMPERATURE;
// loop and publish a change in temperature
while(NETWORK_ATTEMPTING_RECONNECT == rc || NETWORK_RECONNECTED == rc || SUCCESS == rc) {
rc = aws_iot_shadow_yield(&mqttClient, 200);
if(NETWORK_ATTEMPTING_RECONNECT == rc || shadowUpdateInProgress) {
rc = aws_iot_shadow_yield(&mqttClient, 1000);
// If the client is attempting to reconnect, or already waiting on a shadow update,
// we will skip the rest of the loop.
continue;
}
ESP_LOGI(TAG, "=======================================================================================");
ESP_LOGI(TAG, "On Device: window state %s", windowOpen ? "true" : "false");
simulateRoomTemperature(&temperature);
rc = aws_iot_shadow_init_json_document(JsonDocumentBuffer, sizeOfJsonDocumentBuffer);
if(SUCCESS == rc) {
rc = aws_iot_shadow_add_reported(JsonDocumentBuffer, sizeOfJsonDocumentBuffer, 2, &temperatureHandler,
&windowActuator);
if(SUCCESS == rc) {
rc = aws_iot_finalize_json_document(JsonDocumentBuffer, sizeOfJsonDocumentBuffer);
if(SUCCESS == rc) {
ESP_LOGI(TAG, "Update Shadow: %s", JsonDocumentBuffer);
rc = aws_iot_shadow_update(&mqttClient, CONFIG_AWS_EXAMPLE_THING_NAME, JsonDocumentBuffer,
ShadowUpdateStatusCallback, NULL, 4, true);
shadowUpdateInProgress = true;
}
}
}
ESP_LOGI(TAG, "*****************************************************************************************");
vTaskDelay(1000 / portTICK_RATE_MS);
}
if(SUCCESS != rc) {
ESP_LOGE(TAG, "An error occurred in the loop %d", rc);
}
ESP_LOGI(TAG, "Disconnecting");
rc = aws_iot_shadow_disconnect(&mqttClient);
if(SUCCESS != rc) {
ESP_LOGE(TAG, "Disconnect error %d", rc);
}
vTaskDelete(NULL);
}
static void initialise_wifi(void)
{
tcpip_adapter_init();
wifi_event_group = xEventGroupCreate();
ESP_ERROR_CHECK( esp_event_loop_init(event_handler, NULL) );
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK( esp_wifi_init(&cfg) );
ESP_ERROR_CHECK( esp_wifi_set_storage(WIFI_STORAGE_RAM) );
wifi_config_t wifi_config = {
.sta = {
.ssid = EXAMPLE_WIFI_SSID,
.password = EXAMPLE_WIFI_PASS,
},
};
ESP_LOGI(TAG, "Setting WiFi configuration SSID %s...", wifi_config.sta.ssid);
ESP_ERROR_CHECK( esp_wifi_set_mode(WIFI_MODE_STA) );
ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &wifi_config) );
ESP_ERROR_CHECK( esp_wifi_start() );
}