154 lines
5.0 KiB
Markdown
154 lines
5.0 KiB
Markdown
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用户参考自定义透传的智能灯示例，定义目标产品的二进制数据协议，编写对应的上下行数据的解析脚本，设备侧即可基于二进制实现和平台交互。
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### 1.创建自定义透传产品，同时选择智能灯产品类型
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### 2. 使能二进制数据解析功能
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### 3. 智能灯二进制协议格式
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- 上报格式
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- 下发格式
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### 4. 编辑上下行二进制数据与Json数据转换的解析脚本并提交
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- 目前解析脚本暂时只支持JavaScript语法
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对应的脚本代码如下：
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- 上行二进制数据到Json数据的解析脚本
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```
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function RawToProtocol(fPort, bytes) {
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var data = {
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"method": "report",
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"clientToken": new Date(),
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"params":{}
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};
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if (bytes[2] != 1) {
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return data ;
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}
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var sw = bytes[8];
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if (sw == 0 || sw == 1) {
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data.params.power_switch = sw;
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}
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var color = bytes[9];
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if (color >=0 && color < 4 ) {
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data.params.color = color;
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}
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var brightness = bytes[10];
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if (brightness >=0 && brightness <=100 ) {
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data.params.brightness = brightness;
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}
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return data;
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}
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```
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- 下行Json数据到二进制数据的解析脚本
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```
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function ProtocolToRaw(json) {
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var data = new Array();
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var method = json['method'];
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if (method !="control") {
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return data;
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}
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data[0] = 0xaa;// header 0x55aa
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data[1] = 0x55;
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data[2] = 0x20; // control commandb
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data[3] = 0; // padding
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//requestid 这里随便填了
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data[4] = 0xcc;
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data[5] = 0xcc;
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data[6] = 0xcc;
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data[7] = 0xcc;
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var params = json['params'];
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if (params.power_switch != undefined) {
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data[8] = params.power_switch ; //switch
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} else {
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data[8] = 255;
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}
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if (params.color != undefined) {
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data[9] = params.color ; //color
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} else {
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data[9] = 255;
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}
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if (params.brightness != undefined) {
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data[10] = params.brightness ; //brightness
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} else {
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data[10] = 255; }
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data[11] = 255 ; //name is invalid
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return data;
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}
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```
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- 可以在线调试脚本的解析功能
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### 5. 编译SDK并运行二进制示例
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- 带参数 -l 二进制示例会循环执行，示例会定时上报二进制数据，收到二进制数据会dump出来。
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```
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./raw_data_mqtt_sample -l
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INF|2020-02-13 01:41:55|qcloud_iot_device.c|iot_device_info_set(65): SDK_Ver: 3.1.1, Product_ID: NQ7GQN6KSR, Device_Name: dev001
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DBG|2020-02-13 01:41:55|HAL_TLS_mbedtls.c|HAL_TLS_Connect(206): Setting up the SSL/TLS structure...
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DBG|2020-02-13 01:41:55|HAL_TLS_mbedtls.c|HAL_TLS_Connect(248): Performing the SSL/TLS handshake...
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DBG|2020-02-13 01:41:55|HAL_TLS_mbedtls.c|HAL_TLS_Connect(249): Connecting to /nq7gqn6ksr.iotcloud.tencentdevices.com/8883...
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INF|2020-02-13 01:41:56|HAL_TLS_mbedtls.c|HAL_TLS_Connect(271): connected with /nq7gqn6ksr.iotcloud.tencentdevices.com/8883...
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INF|2020-02-13 01:41:56|mqtt_client.c|IOT_MQTT_Construct(127): mqtt connect with id: 9Z39s success
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INF|2020-02-13 01:41:56|raw_data_sample.c|main(306): Cloud Device Construct Success
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DBG|2020-02-13 01:41:56|mqtt_client_subscribe.c|qcloud_iot_mqtt_subscribe(141): topicName=$thing/down/raw/NQ7GQN6KSR/dev001|packet_id=15330
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INF|2020-02-13 01:41:56|raw_data_sample.c|_mqtt_event_handler(95): subscribe success, packet-id=15330
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DBG|2020-02-13 01:41:57|raw_data_sample.c|_publish_raw_data_msg(223): raw_data published dump:
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AA 55 01 00 00 00 00 00 01 01 38 00
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DBG|2020-02-13 01:41:57|mqtt_client_publish.c|qcloud_iot_mqtt_publish(340): publish packetID=0|topicName=$thing/up/raw/NQ7GQN6KSR/dev001|payload=
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DBG|2020-02-13 01:42:02|raw_data_sample.c|_publish_raw_data_msg(223): raw_data published dump:
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AA 55 01 00 01 00 00 00 01 00 54 00
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DBG|2020-02-13 01:42:02|mqtt_client_publish.c|qcloud_iot_mqtt_publish(340): publish packetID=0|topicName=$thing/up/raw/NQ7GQN6KSR/dev001|payload=
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```
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- 收到下行数据并dump
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```
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INF|2020-02-13 01:47:23|raw_data_sample.c|on_raw_data_message_callback(235): Receive Message With topicName:$thing/down/raw/NQ7GQN6KSR/dev001, payloadlen:12
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DBG|2020-02-13 01:47:23|raw_data_sample.c|on_raw_data_message_callback(237): raw_data reveived dump:
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AA 55 20 00 CC CC CC CC FF 01 FF FF
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INF|2020-02-13 01:47:23|raw_data_sample.c|on_raw_data_message_callback(235): Receive Message With topicName:$thing/down/raw/NQ7GQN6KSR/dev001, payloadlen:12
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DBG|2020-02-13 01:47:23|raw_data_sample.c|on_raw_data_message_callback(237): raw_data reveived dump:
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AA 55 20 00 CC CC CC CC FF 01 FF FF
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```
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### 6. 控制台日志
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- 在线调试
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- 设备日志
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