delayMicroseconds()函数接受单个整数(或数字)参数。 此数字表示时间,以微秒为单位。 有一千毫秒在一毫秒,和一百万微秒在一秒钟。 目前,可以产生精确延迟的最大值是16383.这可能会在未来的Arduino版本中改变。 对于超过几千微秒的延迟,应该使用delay()函数。
set4 = (hours.toInt() * 3600)+ (minutes.toInt() * 60) + seconds.toInt(); //adding set1, set2 and set3 together in set4 Serial.print("set4"); Serial.print(set4); Serial.println(); lcd.setCursor(0,0); lcd.print("Countdown begins"); delay(1000); lcd.clear(); for(long...
delay (ms) ; 1. 其中, ms 是暂停的时间(以毫秒为单位)(无符号长)。 delay - 示例 /* Flashing LED * --- * Turns on and off a light emitting diode(LED) connected to a digital * pin, in intervals of 2 seconds. * */ int ledPin=13; //LED 连接到数字引脚 13 void setup() { pin...
while (!Serial) ; // wait for Arduino Serial Monitor delay(200); if (parse && config) { Serial.print(“DS1307 configured Time=”); Serial.print(TIME); Serial.print(“, Date=”); Serial.println(DATE); } else if (parse) { Serial.println(“DS1307 Communication Error :-{”); Serial...
delay()函数语法delay (ms) ; 其中, ms 是以毫秒为单位暂停的时间(无符号长整型)。例子/* Flashing LED * --- * Turns on and off a light emitting diode(LED) connected to a digital * pin, in intervals of 2 seconds. * */ int ledPin = 13; // LED connected to digital pin 13 void ...
6、Delay(sec); 这个指是是告诉Arduino 你要播放音乐的长度,如果你给的秒数不足,而下个指令又是要播另一首,则Arduino 就会把目前播放中断,而继续播下一首。 7、mp3_play (74); 这个指令是播放0074.mp3 这个音乐档。 8、不要直接把Arduino的5V给DFPlayer Mini使用,一定要分别供给DFPlayer Mini电源,不然喇叭...
// DS3231 seconds, minutes, hours, day, date, month, year setDS3231time(30,42,16,5,13,10,16); } voidsetDS3231time(bytesecond,byteminute,bytehour,bytedayOfWeek,byte dayOfMonth,bytemonth,byteyear){ // sets time and date data to DS3231 ...
delay(1); } delay(2000); // Pause for 2 seconds } void testdrawrect(void) { display.clearDisplay(); for(int16_t i=0; i<display.height()/2; i+=2) { display.drawRect(i, i, display.width()-2*i, display.height()-2*i, WHITE); display.display(); // Update screen with eac...
// you can use this function if you'd like to set the pulse length in seconds // e.g. setServoPulse(0, 0.001) is a ~1 millisecond pulse width. its not precise! void setServoPulse(uint8_t n, double pulse) { double pulselength; ...
function, you want to use */ ssd1306_128x32_i2c_init(); ssd1306_clearScreen(); /* Set font to use with console */ ssd1306_setFixedFont(ssd1306xled_font6x8); } void loop() { ssd1306_print( "Hello World\n" ); delay(500); ssd1306_print( "Life is toss\n" ); delay(500); ...