static char \*itoa( int value, char \*string, int radix ) { int i, d; int flag = 0; char \*ptr = string; /\* This implementation only works for decimal numbers. \*/ if (radix != 10) { \*ptr = 0; return string; }
#include <string.h> 1. 2. 2) printf重定向 //支持printf函数串口发送 #if 1 #pragma import(__use_no_semihosting) struct __FILE { int handle; }; FILE __stdout; void _sys_exit(int x)//避免半主机模式 { x=x; } int fputc(int ch,FILE *f) { while((USART1->SR&0X40)==0);//...
(int state) { //清屏 OLED_Clear(0); if(state) { sprintf(TimeBuff,"Socket:ON"); OLED_ShowString(20,16*2,16,TimeBuff); } else { sprintf(TimeBuff,"Socket:OFF"); OLED_ShowString(20,16*2,16,TimeBuff); } } //int main1(void) //{ // HumanDetection_Init(); //热释电模块初始...
char pswd[] = ""; //你的wifi密码 int led = 2; int sw = 0; // 新建组件对象 BlinkerButton Button1("btn1"); // 按下按键即会执行该函数 void button1_callback(const String & state) { if (state == "on"){ //开 BLINKER_LOG("get button state: on"); Blinker.print("switch", ...
h> #include <std_msgs/String.h> #include <std_msgs/Int16.h> #include <std_msgs/Float64.h> ros::NodeHandle nh; int led; void messageCb(const std_msgs::Int16& msg) { if(msg.data > 0){ led=abs(msg.data); digitalWrite(led, HIGH-digitalRead(led)); // blink the led } } std...
WiFiClient client;//声明一个客户端对象,用于与服务器进行连接const int tcpPort=8266;//修改为你建立的Server服务端的端口号,此端口号是创建服务器时指定的。static String comdata="";static String val="";voidsetup(){Serial.begin(115200);pinMode(led,OUTPUT);delay(10);Serial.println();Serial.print...
/*** @brief The application entry point.* @retval int*/intmain(void){HAL_Init();SystemClock...
String sendCommand(String command, const int timeout, boolean debug) { String response = ""; esp8266.print(command); // send the read character to the esp8266 long int time = millis(); while( (time+timeout) > millis()) { while(esp8266.available()) { // The esp has data so disp...
int i; //整数,占用两个字节,整数范围-32767~+32767 long a;//长整型,占四个字节,范围-2147483647~2147483647 float b;//浮点类型, char c='A'; String d="hello world";//字符串 unsigned int e;//无符号整型,范围0-65535 unsigned long f;//无符号长整型,范围0-4294967295 ...