esp_now_send返回是否发送出去,回调函数中展示是否成功发送给接收方。 #include <esp_now.h> #include <WiFi.h> // REPLACE WITH YOUR RECEIVER MAC Address uint8_t broadcastAddress[] = {0x8C, 0xCE, 0x4E, 0xA6, 0x73, 0x74}; // Structure e
*/ #include <esp_now.h> #include <WiFi.h> #include <AsyncTCP.h> #include <Arduino_JSON.h> #include <ESPAsyncWebSrv.h> // Replace with your network credentials (STATION) const char* ssid = "J09 502"; const char* password = "qwertyuiop111"; // Structure example to receive data /...
初始化ESP-NOW; 注册接收回调函数(OnDataRecv)。收到消息后将执行的功能。 在该回调函数内部,将消息保存到变量中以执行具有该信息的任何任务。 ESP-NOW与设备接收消息或发送消息时调用的回调函数一起使用(您可以确定消息是否已成功发送或失败)。 ESP-NOW有用的功能 以下是最基本的ESP-NOW功能的摘要: 函数名称和...
代码清单:main/hello_world_main.c /* Hello World Example This example code is in the Public Domain (or CC0 licensed, at your option.) Unless required by applicable law or agreed to in writing, this software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND...
Now run: make flash This compiles both the ESP IDF libraries and the example main file locally (into thebuilddirectory) and then downloads this to the flash memory on the device over USB. It will take a little while, both to compile, and to flash. If you have a multi-core machine ...
Left the line commented as an example of how to configure peripherals.The line below turns off ...
For example, the older ESP32-Lyra32T V2 and ESP32-LyraT boards were rectangular with built-in touch-based controls. The ESP32-LyraTD-MSC Audio-Mic HDK (hardware development kit) combines the ESP32-LyraTD-MSC (“audio-mic development board”) with a secondary “top” board. The kit ...
You can now go to "File" -> "Examples" -> "ESP32 BLE Mouse" and select any of the examples to get started. Example /** * This example turns the ESP32 into a Bluetooth LE mouse that scrolls down every 2 seconds. */#include<BleMouse.h>BleMouse bleMouse;voidsetup(){Serial.begin(...
首先向昨天哪样,打开一个HelloWorld的example 这里对SDK做一个小改动,配置SPI为4MB 文件已经有所体现了 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #include<stdio.h>#include"sdkconfig.h"#include"freertos/FreeRTOS.h"#include"freertos/task.h"#include"esp_system.h"#include"esp_spi_flash.h"...
问如何使用ESP32cam在bme680传感器的mqtt上发布数据EN之前介绍了RabbitMQ以及如何在SpringBoot项目中整合使用RabbitMQ，看过的朋友都说写的比较详细，希望再总结一下目前比较流行的MQTT。所以接下来，就来介绍什么MQTT？它在IoT中有着怎样的作用？如何在项目中使用MQTT？