then in reverse.The circuit:* LEDs from pins 2 through 7 to groundcreated 2006by David A. Mellismodified 30 Aug 2011by Tom IgoeThis example code is in the public domain.http://www.arduino.cc/en/Tutorial/ForLoop*/inttimer=100;// The higher the number, the slower the timing.void...
println("Arduino for loop"); for (int i=0; i<7; i++) { Serial.print("i is : "); Serial.println(i); } } void loop(void) { } Notice how there are two statements - ending in semicolons and both are enclosed by curly braces. Compare this to the previous example that used ...
}voidloop () {for(inti =0; i <10; ++i )//initialize elements of array n to 0 {Serial.print (i) ; Serial.print (‘\r’) ; }for(intj =0; j <10; ++j )//output each array element's value {Serial.print (n[j]) ; Serial.print (‘\r’) ; } }...
/* Blink Turns on an LED on for one second, then off for one second, repeatedly. This example code is in the public domain. */ // Pin 13 has an LED connected on most Arduino boards. // give it a name: int led = 13; // the setup routine runs once when you press reset: void...
}voidloop() { lv_timer_handler();/*let the GUI do its work*/delay(5); } 烧录代码后的实验效果 2.跑lvgl库自身提供的示例代码 lvgl自身提供了很多的example,比arduino GFX库的LVGL的示例程序要丰富得多,所以我们需要把lvgl自身提供的示例程序跑起来,这样才更有利于学习lvgl。
在上述代码中,如果stopLoop变量为真,则使用return语句停止循环。 启动循环可以使用条件语句if来判断某个条件是否满足,如果满足则执行启动循环的代码。例如,可以使用一个布尔变量来表示是否启动循环,当该变量为真时启动循环。代码示例如下: 代码语言:txt 复制 bool startLoop = false; void setup() { // 初始化设置...
// // This example also shows one easy way to define multiple // animations patterns and have them automatically rotate. // // -Mark Kriegsman, December 2014 #if defined(FASTLED_VERSION) && (FASTLED_VERSION < 3001000) #warning "Requires FastLED 3.1 or later; check github for latest code....
Keypad is a class. Therefore to use multiple Keypad, you must create an instance for each of them. In the example above, the Keypad instancekeypad) was bound to the digital pins 2, 3, 4, 5, 6, 7 and 8. To add a Keypad bound to digital pins 9, 10, 11, 12, 13, 14, 15 and...
Turns on an LED on for one second,then off for one second,repeatedly. This example code is in the public do main. */ //Pin13 has an LED connected on most Arduino boards. //give it a name: Int led=13; //the setup routine runs once when you press reset ...
void loop() { now = rtc.now(); lcd.setCursor(0,0); lcd.print("Time->"); lcd.print(now.hour(),DEC); lcd.print(':'); lcd.print(now.minute(),DEC); lcd.print(':'); lcd.print(now.second(),DEC); lcd.print(" ");