10a7ce71fSopenharmony_ci# Histreaming APP的智慧交通灯<a name="ZH-CN_TOPIC_0000001130176841"></a> 20a7ce71fSopenharmony_ci## 硬件环境搭建 30a7ce71fSopenharmony_ci- 硬件要求:Hi3861V100核心板、扩展板,OLED板,交通灯板;硬件搭建如下图所示。 40a7ce71fSopenharmony_ci- [Hi3861V100核心板参考:HiSpark_WiFi_IoT智能开发套件_原理图硬件资料\原理图\HiSpark_WiFi-IoT_Hi3861_CH340G_VER.B.pdf](http://gitee.com/hihope_iot/embedded-race-hisilicon-track-2022/blob/master/%E7%A1%AC%E4%BB%B6%E8%B5%84%E6%96%99/HiSpark_WiFi_IoT%E6%99%BA%E8%83%BD%E5%AE%B6%E5%B1%85%E5%BC%80%E5%8F%91%E5%A5%97%E4%BB%B6_%E5%8E%9F%E7%90%86%E5%9B%BE.rar) 50a7ce71fSopenharmony_ci- [扩展板参考:HiSpark_WiFi_IoT智能开发套件_原理图硬件资料\原理图\HiSpark_WiFi-IoT_Hi3861_CH340G_VER.B.pdf](http://gitee.com/hihope_iot/embedded-race-hisilicon-track-2022/blob/master/%E7%A1%AC%E4%BB%B6%E8%B5%84%E6%96%99/HiSpark_WiFi_IoT%E6%99%BA%E8%83%BD%E5%AE%B6%E5%B1%85%E5%BC%80%E5%8F%91%E5%A5%97%E4%BB%B6_%E5%8E%9F%E7%90%86%E5%9B%BE.rar) 60a7ce71fSopenharmony_ci- [OLED板参考:HiSpark_WiFi_IoT智能开发套件_原理图硬件资料\原理图\HiSpark_WiFi_IoT_OLED_VER.A.pdf](http://gitee.com/hihope_iot/embedded-race-hisilicon-track-2022/blob/master/%E7%A1%AC%E4%BB%B6%E8%B5%84%E6%96%99/HiSpark_WiFi_IoT%E6%99%BA%E8%83%BD%E5%AE%B6%E5%B1%85%E5%BC%80%E5%8F%91%E5%A5%97%E4%BB%B6_%E5%8E%9F%E7%90%86%E5%9B%BE.rar) 70a7ce71fSopenharmony_ci- [交通灯板硬件原理图参考:HiSpark_WiFi_IoT智能开发套件_原理图硬件资料\原理图\HiSpark_WiFi_IoT_SSL_VER.A.pdf](http://gitee.com/hihope_iot/embedded-race-hisilicon-track-2022/blob/master/%E7%A1%AC%E4%BB%B6%E8%B5%84%E6%96%99/HiSpark_WiFi_IoT%E6%99%BA%E8%83%BD%E5%AE%B6%E5%B1%85%E5%BC%80%E5%8F%91%E5%A5%97%E4%BB%B6_%E5%8E%9F%E7%90%86%E5%9B%BE.rar) 80a7ce71fSopenharmony_ci 90a7ce71fSopenharmony_ci 100a7ce71fSopenharmony_ci 110a7ce71fSopenharmony_ci## 软件介绍 120a7ce71fSopenharmony_ci 130a7ce71fSopenharmony_ci- 1.代码目录结构及相应接口功能介绍 140a7ce71fSopenharmony_ci 150a7ce71fSopenharmony_ci- WiFi API 160a7ce71fSopenharmony_ci 170a7ce71fSopenharmony_ci| API | 接口说明 | 180a7ce71fSopenharmony_ci| ------------------------------------------------------------ | --------------------------------------- | 190a7ce71fSopenharmony_ci| WifiErrorCode EnableWifi(void); | 开启STA | 200a7ce71fSopenharmony_ci| WifiErrorCode DisableWifi(void); | 关闭STA | 210a7ce71fSopenharmony_ci| int IsWifiActive(void); | 查询STA是否已开启 | 220a7ce71fSopenharmony_ci| WifiErrorCode Scan(void); | 触发扫描 | 230a7ce71fSopenharmony_ci| WifiErrorCode GetScanInfoList(WifiScanInfo* result, unsigned int* size); | 获取扫描结果 | 240a7ce71fSopenharmony_ci| WifiErrorCode AddDeviceConfig(const WifiDeviceConfig* config, int* result); | 添加热点配置,成功会通过result传出netld | 250a7ce71fSopenharmony_ci| WifiErrorCode GetDeviceConfigs(WifiDeviceConfig* result, unsigned int* size); | 获取本机所有热点配置 | 260a7ce71fSopenharmony_ci| WifiErrorCode RemoveDevice(int networkId); | 删除热点配置 | 270a7ce71fSopenharmony_ci| WifiErrorCode ConnectTo(int networkId); | 连接到热点 | 280a7ce71fSopenharmony_ci| WifiErrorCode Disconnect(void); | 断开热点连接 | 290a7ce71fSopenharmony_ci| WifiErrorCode GetLinkedInfo(WifiLinkedInfo* result); | 获取当前连接热点信息 | 300a7ce71fSopenharmony_ci| WifiErrorCode RegisterWifiEvent(WifiEvent* event); | 注册事件监听 | 310a7ce71fSopenharmony_ci| WifiErrorCode UnRegisterWifiEvent(const WifiEvent* event); | 解除事件监听 | 320a7ce71fSopenharmony_ci| WifiErrorCode GetDeviceMacAddress(unsigned char* result); | 获取Mac地址 | 330a7ce71fSopenharmony_ci| WifiErrorCode AdvanceScan(WifiScanParams *params); | 高级搜索 | 340a7ce71fSopenharmony_ci 350a7ce71fSopenharmony_ci- DHCP客户端接口: 360a7ce71fSopenharmony_ci 370a7ce71fSopenharmony_ci| API | 描述 | 380a7ce71fSopenharmony_ci| ------------------- | ------------------ | 390a7ce71fSopenharmony_ci| netifapi_netif_find | 按名称查找网络接口 | 400a7ce71fSopenharmony_ci| netifapi_dhcp_start | 启动DHCP客户端 | 410a7ce71fSopenharmony_ci| netifapi_dhcp_stop | 停止DHCP客户端 | 420a7ce71fSopenharmony_ci 430a7ce71fSopenharmony_ci- HiStreaming接口: 440a7ce71fSopenharmony_ci 450a7ce71fSopenharmony_ci| API | 描述 | 460a7ce71fSopenharmony_ci| ------------------- | ------------------ | 470a7ce71fSopenharmony_ci| LinkPlatformGe | 获得HiStreamingLinkLite组件对象 | 480a7ce71fSopenharmony_ci| LinkPlatformFree | 释放HiStreamingLinkLite组件对象 | 490a7ce71fSopenharmony_ci| LinkServiceAgentFree | 释放从设备列表中pop出来的LinkServiceAgent对象 | 500a7ce71fSopenharmony_ci| LinkAgentGet | 获得LinkAgent对象 | 510a7ce71fSopenharmony_ci| LinkAgentFree | 释放LinkAgent对象 | 520a7ce71fSopenharmony_ci| QueryResultFree | 释放设备列表QueryResult。同时也释放设备列表关联的LinkServiceAgent对象 | 530a7ce71fSopenharmony_ci 540a7ce71fSopenharmony_ci- 2.工程编译 550a7ce71fSopenharmony_ci - 将源码./vendor/hisilicon/hispark_pegasus/demo目录下的histreaming_demo整个文件夹及内容复制到源码./applications/sample/wifi-iot/app/下。 560a7ce71fSopenharmony_ci ``` 570a7ce71fSopenharmony_ci . 580a7ce71fSopenharmony_ci └── applications 590a7ce71fSopenharmony_ci └── sample 600a7ce71fSopenharmony_ci └── wifi-iot 610a7ce71fSopenharmony_ci └── app 620a7ce71fSopenharmony_ci └──histreaming_demo 630a7ce71fSopenharmony_ci └── 代码 640a7ce71fSopenharmony_ci ``` 650a7ce71fSopenharmony_ci 660a7ce71fSopenharmony_ci - 修改源码./applications/sample/wifi-iot/app/BUILD.gn文件,在features字段中增加索引,使目标模块参与编译。features字段指定业务模块的路径和目标,features字段配置如下。 670a7ce71fSopenharmony_ci ``` 680a7ce71fSopenharmony_ci import("//build/lite/config/component/lite_component.gni") 690a7ce71fSopenharmony_ci 700a7ce71fSopenharmony_ci lite_component("app") { 710a7ce71fSopenharmony_ci features = [ 720a7ce71fSopenharmony_ci "histreaming_demo:appDemoTraffic", 730a7ce71fSopenharmony_ci ] 740a7ce71fSopenharmony_ci } 750a7ce71fSopenharmony_ci ``` 760a7ce71fSopenharmony_ci 770a7ce71fSopenharmony_ci - 修改.device/soc/hisilicon/hi3861v100/sdk_liteos/build/config/usr_config.mk文件。在这个配置文件中打开I2C,PWM驱动宏。搜索字段CONFIG_I2C_SUPPORT ,并打开I2C,PWM。配置如下: 780a7ce71fSopenharmony_ci ``` 790a7ce71fSopenharmony_ci # CONFIG_I2C_SUPPORT is not set 800a7ce71fSopenharmony_ci CONFIG_I2C_SUPPORT=y 810a7ce71fSopenharmony_ci # CONFIG_PWM_SUPPORT is not set 820a7ce71fSopenharmony_ci CONFIG_PWM_SUPPORT=y 830a7ce71fSopenharmony_ci ``` 840a7ce71fSopenharmony_ci 850a7ce71fSopenharmony_ci - 工程相关配置完成后,然后rebuild编译。 860a7ce71fSopenharmony_ci- 3.烧录 870a7ce71fSopenharmony_ci - 编译成功后,点击DevEco Home->配置工程->hi3861->upload_port->选择对应串口端口号->选择upload_protocol->选择hiburn-serial->点击save保存,在保存成功后点击upload进行烧录,出现connecting, please reset device..字样复位开发板等待烧录完成。 880a7ce71fSopenharmony_ci - 烧录成功后,再次点击Hi3861核心板上的“RST”复位键,此时开发板的系统会运行起来。 890a7ce71fSopenharmony_ci- 4.手机端安装及使用([开发源码](https://gitee.com/leo593362220/shistreaming.git)) 900a7ce71fSopenharmony_ci 910a7ce71fSopenharmony_ci4.1 手机端安装HistreamingAPP,手机wifi连接Hi3861主板发射出来的热点。 920a7ce71fSopenharmony_ci 930a7ce71fSopenharmony_ci4.2 打开HistreamingAPP,点击“局域网”,如果打开APP后没有马上出现“已绑定设备”,请往下滑不断刷新,直到出现绑定设备即可。 940a7ce71fSopenharmony_ci 950a7ce71fSopenharmony_ci  960a7ce71fSopenharmony_ci 970a7ce71fSopenharmony_ci4.3 点击“局域网”进去后,可以看到“Colorful_Light”、“Traffic_Light”等界面,点击app界面的“Traffic_Light”,进去之后可以看到“Control_Module”、“AutoModule”等,这时点击“Control_Module”,进去之后,连续点击button,即可看到控制设备侧的灯在切换。其他模式,用户可自行体验。其中点击“Return_Menu_Module”是返回主界面。 980a7ce71fSopenharmony_ci 990a7ce71fSopenharmony_ci 1000a7ce71fSopenharmony_ci 1010a7ce71fSopenharmony_ci4.4 实验结果:手机可以控制Hi3861V100实现三种交通灯模式切换,分别为Control Mode: 进入Traffic Light demo,初始状态就是Control Mode,是通过右边按键S2来控制红、黄、绿灯的亮灭状态不断切换。按键按下开启蜂鸣器,按键再次按下关闭;Auto Mode: 当按下左键S1时,会从control mode跳到Auto mode,交通灯模式,模仿交通灯,红灯常亮5秒,然后闪烁3秒,后黄灯闪烁3秒,后绿灯常亮5秒,再是绿灯闪烁3秒,如此循环,蜂鸣器开启后会响。最后一行的R,Y,G后面的数字代表倒数的时间,动态显示,时间的单位是秒,R代表红灯,Y代表黄灯,G代表绿灯,B代表的是蜂鸣器,数字“1”代表蜂鸣器打开状态,数字“0”代表蜂鸣器关闭状态。Human Mode: 当再次按下左键S1时,会从Auto mode跳到Human Mode模式,就是在Auto mode的基础上增加了人为控制,且红灯常亮改为30秒。模仿交通灯,红灯常亮30秒后闪烁3秒,黄灯闪烁3秒,然后绿灯常亮5秒,绿灯闪烁3秒,如此循环。如果按下右键S2,红灯立即快闪3秒,黄灯快闪3秒,进入绿灯常亮5秒,再绿灯闪烁3秒,后进入正常循环。蜂鸣器开启后会响。此时如果再按一下左键S1就会跳到Return Menu界面,选择按下Continue继续demo循环 102