esp32cam和arduino连接百度云AI识别图像识别接口识别图片内容

要将ESP32-CAM和Arduino连接到百度云AI图像识别接口，然后将识别结果打印到串口，可以按照以下步骤进行操作：

首先，确保您已经创建了百度云的账户，并且在控制台上创建了一个图像识别应用。获取到了API Key和Secret Key。
在Arduino IDE中安装ESP32开发板支持库，以便能够编程和上传代码到ESP32-CAM。
使用适当的电路将ESP32-CAM和Arduino连接起来。确保供电和通信线路正确连接。
在Arduino IDE中打开一个新的项目，然后将以下代码复制到项目中：

#include <WiFi.h>
#include <HTTPClient.h>const char* ssid = "Your_WiFi_SSID";
const char* password = "Your_WiFi_Password";const char* apiKey = "Your_Baidu_API_Key";
const char* secretKey = "Your_Baidu_Secret_Key";void setup() {Serial.begin(115200);delay(1000);WiFi.begin(ssid, password);while (WiFi.status() != WL_CONNECTED) {delay(1000);Serial.println("Connecting to WiFi...");}Serial.println("Connected to WiFi");delay(1000);
}void loop() {if (WiFi.status() == WL_CONNECTED) {String imgData = captureImage(); // 捕获图像数据，返回Base64编码的字符串if (imgData != "") {String result = recognizeImage(imgData); // 发送图像数据进行识别，返回识别结果if (result != "") {Serial.println("Recognition Result: " + result);} else {Serial.println("Recognition Failed");}} else {Serial.println("Capture Image Failed");}}delay(5000);
}String captureImage() {// 在此处添加代码以从ESP32-CAM捕获图像，并将其转换为Base64编码的字符串// 返回Base64编码的图像数据
}String recognizeImage(String image) {WiFiClientSecure client;HTTPClient http;String url = "https://aip.baidubce.com/rest/2.0/image-classify/v2/advanced_general";// 构建请求URLurl += "?access_token=";url += getAccessToken();http.begin(client, url);http.addHeader("Content-Type", "application/x-www-form-urlencoded");String postData = "image=" + image;int httpResponseCode = http.POST(postData);if (httpResponseCode == HTTP_CODE_OK) {String response = http.getString();return response;} else {return "";}http.end();
}String getAccessToken() {WiFiClientSecure client;HTTPClient http;String url = "https://aip.baidubce.com/oauth/2.0/token"; //根据情况确定String apiKey = "Your_Baidu_API_Key";String secretKey = "Your_Baidu_Secret_Key";url += "?grant_type=client_credentials";url += "&client_id=" + apiKey;url += "&client_secret=" + secretKey;http.begin(client, url);int httpResponseCode = http.GET();String accessToken = "";if (httpResponseCode == HTTP_CODE_OK) {DynamicJsonDocument jsonDoc(1024);String response = http.getString();deserializeJson(jsonDoc, response.c_str());accessToken = jsonDoc["access_token"].as<String>();}http.end();return accessToken;
}