// WiFiconstchar*ssid ="xxxxx";// Enter your WiFi nameconstchar*password ="xxxxx";// Enter WiFi password// MQTT Brokerconstchar*mqtt_broker ="broker.emqx.io";constchar*topic ="emqx/esp32";constchar*mqtt_username ="emqx";constchar*mqtt_password ="public";constintmqtt_port =1883; 建立...
voidsenderTask(void* parameter){intitem =0;for(;;) {xQueueSend(queue, &item, portMAX_DELAY);item++;}} voidreceiverTask(void* parameter){intitem;for(;;) {xQueueReceive(queue, &item, portMAX_DELAY);Serial.println(item);}} voidsetup(){que...
int32_t w, int32_t h, int32_t radius, uint32_t color),绘制一个圆角矩形，在x和y位置具有r半径圆角，w宽度和h高度和t颜色fillRoundRect(int32_t x0, int32_t y0, int32_t w, int32_t h, int32_t radius, uint32_t color),绘制一个填充的圆角矩形，其中x和y位置具有r半径圆角，w宽度和...
Array(root, cJSON_CreateString("Hello world"));//创建字符串 cJSON_AddItemToArray(root, cJSON_CreateNumber(10)); //创建数字 { char *s = cJSON_PrintUnformatted(root); if(s) { printf(" %s \n",s); free(s); } } if(root) cJSON_Delete(root); return 0; } int main(int argc,...
=0){ESP_LOGE(TAG,"Socket unable to connect: errno %d",errno);break;}ESP_LOGI(TAG,"Successfully connected");ioctlsocket(sock,FIONBIO,&non_blocking);//设置为非阻塞setsockopt(sock,SOL_SOCKET,SO_RCVTIMEO,&timeout,sizeof(timeout));//超时接收时间while(1){int err=send(sock,payload,strlen(...
int httpCode = http.GET(); //保存返回的状态码 // put your main code here, to run repeatedly: if (httpCode > 0) // 如果状态码大于0说明请求过程无异常 { if (httpCode == HTTP_CODE_OK) // 请求被服务器正常响应,等同于httpCode == 200 ...
WIFI_CHANNEL 1 // wifi频道 1#define EXAMPLE_MAX_STA_CONN 4 // WiFi最大接入数 4static const char *TAG = "wifi softAP lib";/*wifi事件处理函数*/void wifi_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data) { if (event_id =...
找到String fontName和String fontType所在行,fontName后面的名字改为字体名字,fontType为ttf或者otf,若字体文件为其他格式可以在字体转换网站转换为otf或ttf,int fontSize为生成字体本身的大小,int displayFontSize为生成字体的预览大小,两个值可以根据需要自行修改 ...
Re: ESP32 Ints or Doubles to Strings Quote PostbyPeterR»Wed Dec 25, 2019 1:47 pm No it is missing last time I looked (v4.0-dev). ostringstream works though, so I use something like: Code:Select all std::string ToString(int n) { std::ostringstream stm; stm << n; return stm...
#include<WiFi.h>#include"Servo.h"Servo myservo;staticconstint servoPin=13;constchar*ssid="";constchar*password="";// 端口80WiFiServerserver(80);// 存储HTTP请求的变量String header;// 解码 HTTP GET 值String valueString=String(5);int pos1...