Haas 开发板连接阿里云上传温湿度和电池电压-编程知识

一、在阿里云上创建一个产品

二、开发环境的介绍

三、创建wifi示例

四、编写SI7006和ADC驱动

五、wifi配网

六、主要源码

七、查看实现结果

一、在阿里云上创建一个产品

登录自己的阿里云账号，应该支付宝，淘宝账号都是可以的。

接着根据需求创建一个同类型的产品，在为该类型的产品实例化出一个具体的设备出来。最后为设备添加属性。

具体的步骤：物联网平台 (aliyun.com)

二、开发环境的介绍

本次实验的开发环境的信息如下：

软件环境： Ubuntu 16.04 vscode vscode内部的Haas-studio插件 Alios Things SDK version-3.3

硬件环境： Haas EDU开发板

Haas开发板介绍

三、创建wifi示例

四、编写SI7006和ADC驱动

驱动都是Alios ThingsSDK写好的，不太熟悉Alios Things的伙伴可以去我的之前的文章看看。

ADC驱动

#include <aos/hal/adc.h>
#include <vfsdev/adc_dev.h>float get_battery(){char name[16]={0};int32_t fd = 0;int i;io_adc_arg_t adc_arg;float voltage;int sum=0;snprintf(name,sizeof(name),"/dev/adc1");fd = open(name,0);if(fd>=0){ioctl(fd,IOC_ADC_START,100);aos_msleep(1);sum=0;for(i=0;i<10;i++){ioctl(fd,IOC_ADC_GET_VALUE,&adc_arg);sum += adc_arg.value;}ioctl(fd,IOC_ADC_GET_VALUE,&adc_arg);voltage = (float)sum/10;voltage = voltage*3;//printf("read v=%f\n",voltage/1000);aos_msleep(1);ioctl(fd,IOC_ADC_STOP,0);close(fd);return voltage/1000;}}

ADC的驱动支持基于HAL层API的开发，也支持基于VFS的开发，熟悉linux编程的伙伴，就会很容易的上手。

SI7006温湿度传感器的驱动

#include "aos/hal/i2c.h"
#include "aos/hal/gpio.h"#define Si7006_ADDRESS     0x40   
#define Si7006_MEAS_REL_HUMIDITY_NO_MASTER_MODE   0xF5
#define Si7006_MEAS_REL_TEMP_NO_MASTER_MODE       0xF3
i2c_dev_t  i2c_dev;void si7006_init(){i2c_dev.port    =   1;i2c_dev.config.address_width = I2C_HAL_ADDRESS_WIDTH_7BIT;i2c_dev.config.freq          =  I2C_BUS_BIT_RATES_400K;i2c_dev.config.mode          =  I2C_MODE_MASTER;i2c_dev.config.dev_addr      =  Si7006_ADDRESS;hal_i2c_init(&i2c_dev);
}int si7006_getTemperature(float *tempration){uint8_t reg = Si7006_MEAS_REL_TEMP_NO_MASTER_MODE;uint8_t  read_data[2] = {0};uint32_t value;hal_i2c_master_send(&i2c_dev,i2c_dev.config.dev_addr,&reg,1,1000);aos_msleep(30);hal_i2c_master_recv(&i2c_dev,i2c_dev.config.dev_addr,read_data,2,1000);value = (read_data[0]<<8)|read_data[1];*tempration = (175.72f*(float)value)/65536.0f - 46.85f;return 0;}int si7006_getHumidity(float *Humidity){uint8_t reg = Si7006_MEAS_REL_HUMIDITY_NO_MASTER_MODE;uint8_t  read_data[2] = {0};uint32_t value;hal_i2c_master_send(&i2c_dev,i2c_dev.config.dev_addr,&reg,1,1000);aos_msleep(30);hal_i2c_master_recv(&i2c_dev,i2c_dev.config.dev_addr,read_data,2,1000);value = (read_data[0]<<8)|read_data[1];*Humidity = (125.0f*(float)value)/65536.0f - 6.0f;return 0;}

五、wifi配网

在开发板启动之后，进入CLI模式，即可与开发板交互，开发板配网的流程命令如下：

netmgr  -t wifi  -i                   #初始化
netmgr –t wifi  -c ssid password      #连接wifi， ssid为wifi名称， passwd密码

六、主要源码

/** Copyright (C) 2015-2020 Alibaba Group Holding Limited*/
/*** @file main.c** This file includes the entry code of link sdk related demo**/#include <string.h>
#include <stdio.h>
#include <aos/kernel.h>
#include "netmgr.h"
#include <uservice/uservice.h>
#include <uservice/eventid.h>
#include "aos/hal/adc.h"
#include <vfsdev/adc_dev.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "aos/hal/i2c.h"
#include "aos/hal/gpio.h"float temperature, humidity, voltage;extern int demo_main(int argc, char *argv[]);static int _ip_got_finished = 0;
io_adc_arg_t io_adc_arg;float get_battery(void)
{int fd = -1;char dev_name[128] = {0};float ret_value = 0;snprintf(dev_name, sizeof(dev_name), "/dev/adc1");fd = open(dev_name, 0);if(fd < 0) {perror(open);}ioctl(fd, IOC_ADC_START, &io_adc_arg);aos_msleep(1);ioctl(fd, IOC_ADC_GET_VALUE, &io_adc_arg);ret_value = (float)io_adc_arg.value / 1000 * 3;ioctl(fd, IOC_ADC_STOP, &io_adc_arg);close(fd);// printf("%d\n", io_adc_arg.value);//printf("%f\n", ret_value);return ret_value;
}#define SI7006_DEVICE_ADDR (0x40)
#define SI7006_TEMP_CMD (0XF3)
#define SI7006_HUMI_CMD (0XF5)/* i2c handle*/
i2c_dev_t i2c_dev;void Si7006_Init(void)
{i2c_dev.port = 1;i2c_dev.config.address_width = I2C_HAL_ADDRESS_WIDTH_7BIT;i2c_dev.config.freq = I2C_BUS_BIT_RATES_400K;i2c_dev.config.mode = I2C_MODE_MASTER;i2c_dev.config.dev_addr = SI7006_DEVICE_ADDR;hal_i2c_init(&i2c_dev);
}int GetTemperature(float * temperature) 
{int ret;uint8_t reg = SI7006_TEMP_CMD;uint8_t data_buf[2] = {0};short value;/**/ret = hal_i2c_master_send(&i2c_dev, i2c_dev.config.dev_addr, &reg, 1, 1000);if(ret != 0) {int i = 0;for(; i < 3; i++) {ret = hal_i2c_master_send(&i2c_dev, i2c_dev.config.dev_addr, &reg, 1, 1000);}if(ret != 0) {printf("hal_i2c_master_send failed !\n");return -1;}}aos_msleep(30);ret = hal_i2c_master_recv(&i2c_dev, i2c_dev.config.dev_addr, data_buf, 2, 1000);if(ret != 0) {int i = 0;for(; i < 3; i++) {ret = hal_i2c_master_send(&i2c_dev, i2c_dev.config.dev_addr, &reg, 1, 1000);}if(ret != 0) {printf("hal_i2c_master_recv failed !\n");return -1;}}value = (data_buf[0] << 8) | data_buf[1];*temperature = (175.72 * (value) / 65536) - 46.85;return 0;
}int GetHumidity(float* humidity) 
{int ret;short value;uint8_t reg = SI7006_HUMI_CMD;uint8_t data_buf[2] = {0};ret = hal_i2c_master_send(&i2c_dev, i2c_dev.config.dev_addr, &reg, 1, 1000);if(ret != 0) {int i = 0;for(; i < 3; i++) {ret = hal_i2c_master_send(&i2c_dev, i2c_dev.config.dev_addr, &reg, 1, 1000);}if(ret != 0) {printf("hal_i2c_master_send failed !\n");return -1;}}aos_msleep(30);ret = hal_i2c_master_recv(&i2c_dev, i2c_dev.config.dev_addr, data_buf, 2, 1000);if(ret != 0) {int i = 0;for(; i < 3; i++) {ret = hal_i2c_master_send(&i2c_dev, i2c_dev.config.dev_addr, &reg, 1, 1000);}if(ret != 0) {printf("hal_i2c_master_recv failed !\n");return -1;}}value = (data_buf[0] << 8) | data_buf[1];*humidity = (125.0 * (value) / 65536.0) - 6;return 0;
}static void entry_func(void *data)
{demo_main(0 , NULL);
}
static void wifi_event_cb(uint32_t event_id, const void *param, void *context)
{aos_task_t task;aos_status_t ret;if (event_id != EVENT_NETMGR_DHCP_SUCCESS)return;if (_ip_got_finished != 0)return;_ip_got_finished = 1;ret = aos_task_create(&task, "linksdk_demo", entry_func,NULL, NULL, 6048, AOS_DEFAULT_APP_PRI, AOS_TASK_AUTORUN);if (ret < 0) {printf("create linksdk demo task failed, ret = %ld \r\n", ret);}
}int application_start(int argc, char *argv[])
{aos_set_log_level(AOS_LL_DEBUG);event_service_init(NULL);netmgr_service_init(NULL);netmgr_set_auto_reconnect(NULL, true);netmgr_wifi_set_auto_save_ap(true);event_subscribe(EVENT_NETMGR_DHCP_SUCCESS, wifi_event_cb, NULL);Si7006_Init();char buf[128] = {0};while (1) {GetTemperature(&temperature);GetHumidity(&humidity);voltage = get_battery();aos_msleep(1000);// printf("temprature: %0.2f\n", temperature);//printf("humidity: %0.2f\n", humidity);//printf("voltage: %.02f\n", voltage);}return 0;
}

/** 这个例程演示了用SDK配置MQTT参数并建立连接, 之后创建2个线程** + 一个线程用于保活长连接* + 一个线程用于接收消息, 并在有消息到达时进入默认的数据回调, 在连接状态变化时进入事件回调** 接着演示了在MQTT连接上进行属性上报, 事件上报, 以及处理收到的属性设置, 服务调用, 取消这些代码段落的注释即可观察运行效果** 需要用户关注或修改的部分, 已经用 TODO 在注释中标明**/#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <aos/kernel.h>#include "aiot_state_api.h"
#include "aiot_sysdep_api.h"
#include "aiot_mqtt_api.h"
#include "aiot_dm_api.h"extern float temperature, humidity, voltage;/* 位于portfiles/aiot_port文件夹下的系统适配函数集合 */
extern aiot_sysdep_portfile_t g_aiot_sysdep_portfile;/* 位于external/ali_ca_cert.c中的服务器证书 */
extern const char *ali_ca_cert;static uint8_t g_mqtt_process_thread_running = 0;
static uint8_t g_mqtt_recv_thread_running = 0;/* TODO: 如果要关闭日志, 就把这个函数实现为空, 如果要减少日志, 可根据code选择不打印** 例如: [1577589489.033][LK-0317] mqtt_basic_demo&a13FN5TplKq** 上面这条日志的code就是0317(十六进制), code值的定义见core/aiot_state_api.h**//* 日志回调函数, SDK的日志会从这里输出 */
int32_t demo_state_logcb(int32_t code, char *message)
{printf("%s", message);return 0;
}/* MQTT事件回调函数, 当网络连接/重连/断开时被触发, 事件定义见core/aiot_mqtt_api.h */
void demo_mqtt_event_handler(void *handle, const aiot_mqtt_event_t *event, void *userdata)
{switch (event->type) {/* SDK因为用户调用了aiot_mqtt_connect()接口, 与mqtt服务器建立连接已成功 */case AIOT_MQTTEVT_CONNECT: {printf("AIOT_MQTTEVT_CONNECT\n");}break;/* SDK因为网络状况被动断连后, 自动发起重连已成功 */case AIOT_MQTTEVT_RECONNECT: {printf("AIOT_MQTTEVT_RECONNECT\n");}break;/* SDK因为网络的状况而被动断开了连接, network是底层读写失败, heartbeat是没有按预期得到服务端心跳应答 */case AIOT_MQTTEVT_DISCONNECT: {char *cause = (event->data.disconnect == AIOT_MQTTDISCONNEVT_NETWORK_DISCONNECT) ? ("network disconnect") :("heartbeat disconnect");printf("AIOT_MQTTEVT_DISCONNECT: %s\n", cause);}break;default: {}}
}/* 执行aiot_mqtt_process的线程, 包含心跳发送和QoS1消息重发 */
void *demo_mqtt_process_thread(void *args)
{int32_t res = STATE_SUCCESS;while (g_mqtt_process_thread_running) {res = aiot_mqtt_process(args);if (res == STATE_USER_INPUT_EXEC_DISABLED) {break;}aos_msleep(1000);}return NULL;
}/* 执行aiot_mqtt_recv的线程, 包含网络自动重连和从服务器收取MQTT消息 */
void *demo_mqtt_recv_thread(void *args)
{int32_t res = STATE_SUCCESS;while (g_mqtt_recv_thread_running) {res = aiot_mqtt_recv(args);if (res < STATE_SUCCESS) {if (res == STATE_USER_INPUT_EXEC_DISABLED) {break;}aos_msleep(1000);}}return NULL;
}/* 用户数据接收处理回调函数 */
static void demo_dm_recv_handler(void *dm_handle, const aiot_dm_recv_t *recv, void *userdata)
{printf("demo_dm_recv_handler, type = %d\r\n", recv->type);switch (recv->type) {/* 属性上报, 事件上报, 获取期望属性值或者删除期望属性值的应答 */case AIOT_DMRECV_GENERIC_REPLY: {printf("msg_id = %d, code = %d, data = %.*s, message = %.*s\r\n",recv->data.generic_reply.msg_id,recv->data.generic_reply.code,recv->data.generic_reply.data_len,recv->data.generic_reply.data,recv->data.generic_reply.message_len,recv->data.generic_reply.message);}break;/* 属性设置 */case AIOT_DMRECV_PROPERTY_SET: {printf("msg_id = %ld, params = %.*s\r\n",(unsigned long)recv->data.property_set.msg_id,recv->data.property_set.params_len,recv->data.property_set.params);/* TODO: 以下代码演示如何对来自云平台的属性设置指令进行应答, 用户可取消注释查看演示效果 *//*{aiot_dm_msg_t msg;memset(&msg, 0, sizeof(aiot_dm_msg_t));msg.type = AIOT_DMMSG_PROPERTY_SET_REPLY;msg.data.property_set_reply.msg_id = recv->data.property_set.msg_id;msg.data.property_set_reply.code = 200;msg.data.property_set_reply.data = "{}";int32_t res = aiot_dm_send(dm_handle, &msg);if (res < 0) {printf("aiot_dm_send failed\r\n");}}*/}break;/* 异步服务调用 */case AIOT_DMRECV_ASYNC_SERVICE_INVOKE: {printf("msg_id = %ld, service_id = %s, params = %.*s\r\n",(unsigned long)recv->data.async_service_invoke.msg_id,recv->data.async_service_invoke.service_id,recv->data.async_service_invoke.params_len,recv->data.async_service_invoke.params);/* TODO: 以下代码演示如何对来自云平台的异步服务调用进行应答, 用户可取消注释查看演示效果** 注意: 如果用户在回调函数外进行应答, 需要自行保存msg_id, 因为回调函数入参在退出回调函数后将被SDK销毁, 不可以再访问到*//*{aiot_dm_msg_t msg;memset(&msg, 0, sizeof(aiot_dm_msg_t));msg.type = AIOT_DMMSG_ASYNC_SERVICE_REPLY;msg.data.async_service_reply.msg_id = recv->data.async_service_invoke.msg_id;msg.data.async_service_reply.code = 200;msg.data.async_service_reply.service_id = "ToggleLightSwitch";msg.data.async_service_reply.data = "{\"dataA\": 20}";int32_t res = aiot_dm_send(dm_handle, &msg);if (res < 0) {printf("aiot_dm_send failed\r\n");}}*/}break;/* 同步服务调用 */case AIOT_DMRECV_SYNC_SERVICE_INVOKE: {printf("msg_id = %ld, rrpc_id = %s, service_id = %s, params = %.*s\r\n",(unsigned long)recv->data.sync_service_invoke.msg_id,recv->data.sync_service_invoke.rrpc_id,recv->data.sync_service_invoke.service_id,recv->data.sync_service_invoke.params_len,recv->data.sync_service_invoke.params);/* TODO: 以下代码演示如何对来自云平台的同步服务调用进行应答, 用户可取消注释查看演示效果** 注意: 如果用户在回调函数外进行应答, 需要自行保存msg_id和rrpc_id字符串, 因为回调函数入参在退出回调函数后将被SDK销毁, 不可以再访问到*//*{aiot_dm_msg_t msg;memset(&msg, 0, sizeof(aiot_dm_msg_t));msg.type = AIOT_DMMSG_SYNC_SERVICE_REPLY;msg.data.sync_service_reply.rrpc_id = recv->data.sync_service_invoke.rrpc_id;msg.data.sync_service_reply.msg_id = recv->data.sync_service_invoke.msg_id;msg.data.sync_service_reply.code = 200;msg.data.sync_service_reply.service_id = "SetLightSwitchTimer";msg.data.sync_service_reply.data = "{}";int32_t res = aiot_dm_send(dm_handle, &msg);if (res < 0) {printf("aiot_dm_send failed\r\n");}}*/}break;/* 下行二进制数据 */case AIOT_DMRECV_RAW_DATA: {printf("raw data len = %d\r\n", recv->data.raw_data.data_len);/* TODO: 以下代码演示如何发送二进制格式数据, 若使用需要有相应的数据透传脚本部署在云端 *//*{aiot_dm_msg_t msg;uint8_t raw_data[] = {0x01, 0x02};memset(&msg, 0, sizeof(aiot_dm_msg_t));msg.type = AIOT_DMMSG_RAW_DATA;msg.data.raw_data.data = raw_data;msg.data.raw_data.data_len = sizeof(raw_data);aiot_dm_send(dm_handle, &msg);}*/}break;/* 二进制格式的同步服务调用, 比单纯的二进制数据消息多了个rrpc_id */case AIOT_DMRECV_RAW_SYNC_SERVICE_INVOKE: {printf("raw sync service rrpc_id = %s, data_len = %d\r\n",recv->data.raw_service_invoke.rrpc_id,recv->data.raw_service_invoke.data_len);}break;default:break;}
}/* 属性上报函数演示 */
int32_t demo_send_property_post(void *dm_handle, char *params)
{aiot_dm_msg_t msg;memset(&msg, 0, sizeof(aiot_dm_msg_t));msg.type = AIOT_DMMSG_PROPERTY_POST;msg.data.property_post.params = params;return aiot_dm_send(dm_handle, &msg);
}/* 事件上报函数演示 */
int32_t demo_send_event_post(void *dm_handle, char *event_id, char *params)
{aiot_dm_msg_t msg;memset(&msg, 0, sizeof(aiot_dm_msg_t));msg.type = AIOT_DMMSG_EVENT_POST;msg.data.event_post.event_id = event_id;msg.data.event_post.params = params;return aiot_dm_send(dm_handle, &msg);
}/* 演示了获取属性LightSwitch的期望值, 用户可将此函数加入到main函数中运行演示 */
int32_t demo_send_get_desred_requset(void *dm_handle)
{aiot_dm_msg_t msg;memset(&msg, 0, sizeof(aiot_dm_msg_t));msg.type = AIOT_DMMSG_GET_DESIRED;msg.data.get_desired.params = "[\"LightSwitch\"]";return aiot_dm_send(dm_handle, &msg);
}/* 演示了删除属性LightSwitch的期望值, 用户可将此函数加入到main函数中运行演示 */
int32_t demo_send_delete_desred_requset(void *dm_handle)
{aiot_dm_msg_t msg;memset(&msg, 0, sizeof(aiot_dm_msg_t));msg.type = AIOT_DMMSG_DELETE_DESIRED;msg.data.get_desired.params = "{\"LightSwitch\":{}}";return aiot_dm_send(dm_handle, &msg);
}int demo_main(int argc, char *argv[])
{int32_t     res = STATE_SUCCESS;void       *dm_handle = NULL;void       *mqtt_handle = NULL;char       *url = "iot-as-mqtt.cn-shanghai.aliyuncs.com"; /* 阿里云平台上海站点的域名后缀 */char        host[100] = {0}; /* 用这个数组拼接设备连接的云平台站点全地址, 规则是 ${productKey}.iot-as-mqtt.cn-shanghai.aliyuncs.com */uint16_t    port = 443;      /* 无论设备是否使用TLS连接阿里云平台, 目的端口都是443 */aiot_sysdep_network_cred_t cred; /* 安全凭据结构体, 如果要用TLS, 这个结构体中配置CA证书等参数 *//* TODO: 替换为自己设备的三元组 */char *product_key       = "k0t0ptohSB3";char *device_name       = "hass_humi_temp_test";char *device_secret     = "7f50a6537f5acfd13bd1a133a90a40ec";/* 配置SDK的底层依赖 */aiot_sysdep_set_portfile(&g_aiot_sysdep_portfile);/* 配置SDK的日志输出 */aiot_state_set_logcb(demo_state_logcb);/* 创建SDK的安全凭据, 用于建立TLS连接 */memset(&cred, 0, sizeof(aiot_sysdep_network_cred_t));cred.option = AIOT_SYSDEP_NETWORK_CRED_SVRCERT_CA;  /* 使用RSA证书校验MQTT服务端 */cred.max_tls_fragment = 16384; /* 最大的分片长度为16K, 其它可选值还有4K, 2K, 1K, 0.5K */cred.sni_enabled = 1;                               /* TLS建连时, 支持Server Name Indicator */cred.x509_server_cert = ali_ca_cert;                 /* 用来验证MQTT服务端的RSA根证书 */cred.x509_server_cert_len = strlen(ali_ca_cert);     /* 用来验证MQTT服务端的RSA根证书长度 *//* 创建1个MQTT客户端实例并内部初始化默认参数 */mqtt_handle = aiot_mqtt_init();if (mqtt_handle == NULL) {printf("aiot_mqtt_init failed\n");return -1;}snprintf(host, 100, "%s.%s", product_key, url);/* 配置MQTT服务器地址 */aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_HOST, (void *)host);/* 配置MQTT服务器端口 */aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_PORT, (void *)&port);/* 配置设备productKey */aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_PRODUCT_KEY, (void *)product_key);/* 配置设备deviceName */aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_DEVICE_NAME, (void *)device_name);/* 配置设备deviceSecret */aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_DEVICE_SECRET, (void *)device_secret);/* 配置网络连接的安全凭据, 上面已经创建好了 */aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_NETWORK_CRED, (void *)&cred);/* 配置MQTT事件回调函数 */aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_EVENT_HANDLER, (void *)demo_mqtt_event_handler);/* 创建DATA-MODEL实例 */dm_handle = aiot_dm_init();if (dm_handle == NULL) {printf("aiot_dm_init failed");return -1;}/* 配置MQTT实例句柄 */aiot_dm_setopt(dm_handle, AIOT_DMOPT_MQTT_HANDLE, mqtt_handle);/* 配置消息接收处理回调函数 */aiot_dm_setopt(dm_handle, AIOT_DMOPT_RECV_HANDLER, (void *)demo_dm_recv_handler);/* 与服务器建立MQTT连接 */res = aiot_mqtt_connect(mqtt_handle);if (res < STATE_SUCCESS) {/* 尝试建立连接失败, 销毁MQTT实例, 回收资源 */aiot_mqtt_deinit(&mqtt_handle);printf("aiot_mqtt_connect failed: -0x%04X\n", -res);return -1;}/* 创建一个单独的线程, 专用于执行aiot_mqtt_process, 它会自动发送心跳保活, 以及重发QoS1的未应答报文 */g_mqtt_process_thread_running = 1;res = aos_task_new("demo_mqtt_process", demo_mqtt_process_thread, mqtt_handle, 4096);// res = pthread_create(&g_mqtt_process_thread, NULL, demo_mqtt_process_thread, mqtt_handle);if (res != 0) {printf("create demo_mqtt_process_thread failed: %d\n", res);return -1;}/* 创建一个单独的线程用于执行aiot_mqtt_recv, 它会循环收取服务器下发的MQTT消息, 并在断线时自动重连 */g_mqtt_recv_thread_running = 1;res = aos_task_new("demo_mqtt_process", demo_mqtt_recv_thread, mqtt_handle, 4096);// res = pthread_create(&g_mqtt_recv_thread, NULL, demo_mqtt_recv_thread, mqtt_handle);if (res != 0) {printf("create demo_mqtt_recv_thread failed: %d\n", res);return -1;}char buf[128] = {0};/* 主循环进入休眠 */while (1) {sprintf(buf, "{\"CurrentTemperature\": %f}", temperature);demo_send_property_post(dm_handle, buf);sprintf(buf, "{\"CurrentHumidity\": %f}", humidity);demo_send_property_post(dm_handle, buf);sprintf(buf, "{\"CurrentVoltage\": %f}", voltage);demo_send_property_post(dm_handle, buf);demo_send_event_post(dm_handle, "Error", "{\"ErrorCode\": 0}");aos_msleep(10000);}/* 断开MQTT连接, 一般不会运行到这里 */res = aiot_mqtt_disconnect(mqtt_handle);if (res < STATE_SUCCESS) {aiot_mqtt_deinit(&mqtt_handle);printf("aiot_mqtt_disconnect failed: -0x%04X\n", -res);return -1;}/* 销毁DATA-MODEL实例, 一般不会运行到这里 */res = aiot_dm_deinit(&dm_handle);if (res < STATE_SUCCESS) {printf("aiot_dm_deinit failed: -0x%04X\n", -res);return -1;}/* 销毁MQTT实例, 一般不会运行到这里 */res = aiot_mqtt_deinit(&mqtt_handle);if (res < STATE_SUCCESS) {printf("aiot_mqtt_deinit failed: -0x%04X\n", -res);return -1;}g_mqtt_process_thread_running = 0;g_mqtt_recv_thread_running = 0;return 0;
}