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README
Apache-2.0
Supported Targets ESP32 ESP32-C2 ESP32-C3 ESP32-S3

Arduino 项目入门开发实战

这个项目旨在帮助初次接触 ESP 芯片的新手,使用 Arduino 平台进行快速入门。项目最终完成的功能是通过手机应用程序 ESP-RainMaker 来实现远程控制开关、显示实时的天气信息以及发送提醒。此项目还提供了详细的视频教程:https://www.bilibili.com/video/BV1HH4y1X7fb

本项目分成了以下三个示例,允许初学者逐步学习和理解不同的概念和技术。每个示例都可以专注于特定的功能或任务,降低学习和理解的难度。

  1. connect_wifi 包含:
  • 简单的 Wi-Fi 连接
  1. get_weather 包含:
  • 简单的 Wi-Fi 连接
  • HTTP 请求
  • JSON 格式的数据运用/解析
  • GPIO 按键
  1. get_weather_RainMaker 包含:
  • 简单的 Wi-Fi 连接
  • HTTP 请求
  • JSON 格式的数据运用/解析
  • GPIO 按键/输出
  • RainMaker 云端交互

示例使用说明

准备硬件

如果使用的是 connect_wifi 或者 get_weather 示例,需准备:

  • ESP32-S3 开发板,如 ESP32-S3-DevKitC-1
  • USB 数据线 (A 转 Micro-B)
  • 电脑(Windows、Linux 或 macOS)

如果使用的是 get_weather_RainMaker 示例,需准备:

  • ESP32-S3 开发板,如 ESP32-S3-DevKitC-1
  • USB 数据线 (A 转 Micro-B)
  • 电脑(Windows、Linux 或 macOS)
  • 杜邦线
  • 两个 LED 灯,或者一个 RGB LED 模块

搭建开发环境

安装 Arduino IDE

  • 如果你还没有安装 Arduino IDE,请先下载并安装它。
  1. Arduino 官网 获取安装包
  2. 使用下载的 .exe文件,一键安装 Arduino IDE

安装 ESP32 库

  • 根据官网提供的链接导入 arduino-esp32

    稳定版本链接 (推荐)

    https://espressif.github.io/arduino-esp32/package_esp32_index.json

    开发者版本链接:

    https://espressif.github.io/arduino-esp32/package_esp32_dev_index.json
    1. 打开 File —> Preferences 界面
    2. 将官网提供的链接导入 Additional boards manager URLs 下,点击 ok
    3. 打开 Tools -> Board -> Boards Manager 界面(快捷键 Ctrl + Shift + B)
    4. 搜索 esp32, 安装下方 esp32
    5. 安装成功后会在 Tools —> Board —> esp32 界面增加 ESP32 系列开发板选项,在 File -> Examples 中可以看到乐鑫官方提供的示例代码。

安装必要的库

  • 安装 ArduinoJson 库,用于解析百度地图返回的 JSON 数据

    • 打开 Tools —> Manage Libraries 界面,搜索 ArduinoJson, 然后点击 Install

手机下载 ESP RainMaker APP

获取百度地图 API 密钥

  • 前往 百度开发者平台 点击 创建应用 获取开发者密钥,并将其替换为 apiServer 变量中的密钥。

配置项目

使用 connect_wifi 或者 get_weather

  • 在代码中配置 ssid(Wi-Fi名称)、password(共享密钥)、和 apiServer(百度地图 API 服务地址)

    const char* ssid = "ssid";
    const char* password = "password";
    const char* apiServer = "https://api.map.baidu.com/weather/v1/?district_id=区县的行政区划编码&data_type=all&ak=百度开发者密钥";

使用 get_weather_RainMaker

  • 在代码中配置 service name(广播名称)、pop(共享密钥)、和 apiServer(百度地图 API 服务地址)

    const char* service_name = "ESP_Friend";
    const char* pop = "1234567";
    const char* apiServer = "https://api.map.baidu.com/weather/v1/?district_id=区县的行政区划编码&data_type=all&ak=百度开发者密钥";
  • 配置 LED 引脚:

    static uint8_t LED_1 = 19;
    static uint8_t LED_2 = 20;
  • Tools -> Partition Scheme 中选择默认的 RainMaker 分区表。

  • 将代码烧录到开发板后打开 RainMaker APP 使用 BLE 进行配网。

编译和烧录

使用 Arduino IDE 打开本项目,点击左上角 upload 图标完成一键编译和烧录。

示例输出

下面是使用 connect_wifi 示例在终端中打印出的输出:

ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x1 (POWERON),boot:0x8 (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce3808,len:0x44c
load:0x403c9700,len:0xbe4
load:0x403cc700,len:0x2a68
entry 0x403c98d4
开始连接 Wi-Fi !
Wi-Fi 连接中。。。
Wi-Fi 连接中。。。
Wi-Fi 连接成功!
192.168.1.100

下面是使用 get_weather 示例在终端中打印出的输出:

ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x1 (POWERON),boot:0x8 (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce3808,len:0x44c
load:0x403c9700,len:0xbe4
load:0x403cc700,len:0x2a68
entry 0x403c98d4
Connecting to WiFi!
Wi-Fi 连接中。。。
Wi-Fi 连接中。。。
Wi-Fi 连接成功!
192.168.1.100
------------天气信息----------------
浦东新区
天气现象:暴雨
温度:30
相对湿度:66
风力:2级
-----------------------------------

下面是使用 get_weather_RainMaker 示例在终端中打印出的输出:

ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x1 (POWERON),boot:0x8 (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce3808,len:0x44c
load:0x403c9700,len:0xbe4
load:0x403cc700,len:0x2a68
entry 0x403c98d4
[  9093][I][RMaker.cpp:17] event_handler(): RainMaker Initialised.
[  9094][I][WiFiProv.cpp:139] beginProvision(): Starting AP using BLE. service_name : ESP_Friend, pop : 1234567
[113614][I][RMaker.cpp:20] event_handler(): RainMaker Claim Started.
[117926][I][RMaker.cpp:23] event_handler(): RainMaker Claim Successful
[   382][I][RMaker.cpp:17] event_handler(): RainMaker Initialised.
[   384][I][WiFiProv.cpp:155] beginProvision(): Already Provisioned
[   384][I][WiFiProv.cpp:159] beginProvision(): Attempting connect to AP: cc2.4

------------天气信息----------------
地区:浦东新区
天气:暴雨
温度:30
风力:2级
相对湿度:66
-----------------------------------
[ 55011][I][RMakerDevice.cpp:209] updateAndReportParam(): Device : 今日天气, Param Name : 地址, Val : 浦东新区
[ 55013][I][RMakerDevice.cpp:209] updateAndReportParam(): Device : 今日天气, Param Name : 天气, Val : 暴雨
[ 55023][I][RMakerDevice.cpp:209] updateAndReportParam(): Device : 今日天气, Param Name : 风力, Val : 2级
[ 55033][I][RMakerDevice.cpp:181] updateAndReportParam(): Device : 今日天气, Param Name : 湿度, Val : 66
[ 55045][I][RMakerDevice.cpp:195] updateAndReportParam(): Device : 今日天气, Param Name : Temperature, Val : 30.000000
[ 55053][I][RMakerDevice.cpp:209] updateAndReportParam(): Device : 星期, Param Name : 星期, Val : 星期一

故障排除

程序上传失败

  • 硬件连接不正确,检查 COM 端口USB 驱动

ESP RainMaker APP 闪退

  • 检查 ESP RainMaker APP 是否有更新

技术支持和反馈

  • 对于技术问题,请访问 esp32.com 论坛
  • 对于功能请求或错误报告,请创建 GitHub issue 问题
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简介

本仓库用来存放以下示例:基于 Arduino 平台来实现通过手机 APP ESP-RainMaker 来远程控制开关、显示实时的天气信息还有发送提醒。 展开 收起
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