STM32HAL库+ESP8266+cJSON+微信小程序-连接华为云物联网平台.zip

上传者: 61228493 | 上传时间: 2025-04-27 23:56:51 | 文件大小: 30.73MB | 文件类型: ZIP
基于华为云IoT平台的物联网系统的主要功能是通过STM32硬件设备,实现了温湿度、光照等环境参数的实时采集,并通过WiFi模块上传到华为云IoT平台。用户通过微信小程序可以实时查看这些数据,并设置相应的阈值。当参数超过阈值时,小程序会发出报警,并自动发送控制命令到硬件设备,实现自动化的环境调控。此外,小程序还提供了数据可视化的功能,支持折线图等图形展示,帮助用户更好地分析和理解数据。 本文详细介绍了利用STM32和华为云IoT平台进行物联网应用开发的全过程。首先,介绍了华为云IoT平台的主要服务、应用场景和优势。然后详细阐述了利用STM32 HAL库进行工程创建、移植传感器驱动、显示屏驱动、串口驱动、WiFi驱动等过程。接着详细介绍了在华为云平台创建产品、设备,获取MQTT连接参数,并连接WiFi模块到云平台。然后介绍了JSON格式和如何使用cJSON库解析JSON数据。接下来详细阐述了设备如何通过WiFi模块上报属性数据和如何解析云平台下发的控制指令。随后详细介绍了如何开发微信小程序,调用华为云API获取数据和控制设备,以及如何使用Echarts实现数据可视化。

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