清楚了按键不同操作对PIN2引脚电平影响以后,我们就可以写代码了 constintbuttonPin =2; constintledPin =13; intbuttonState =0;/*variable for reading the pushbutton status*/ voidsetup(){ /* initialize the LED pin as an output:*/ pinMode(ledPin, OUTPUT); /* initialize the pushbutton pin as ...
/*ButtonTurns on and off a light emitting diode(LED) connected to digital pin 13,when pressing a pushbutton attached to pin 2.The circuit:- LED attached from pin 13 to ground through 220 ohm resistor- pushbutton attached to pin 2 from +5V- 10K resistor attached to pin 2 from ground- ...
constint button_pin=7;// 声明按钮引脚为数字7constint led_pin=3;// 声明 LED 引脚为数字3byte lastButtonState=HIGH;// 定义一个字节类型的变量用于存储上一个按钮状态, 默认为HIGHbool ledState=LOW;// 声明并初始化一个布尔型变量用于存储 LED 的状态,默认为 LOW/**上拉电阻的作用: 当按钮未按下时...
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Arduino Logic Control (1): Push button switch to control LED lights.首先打开Arduino IDE，依次选择文件，示例，Digital,DigitallnputPullup。将此程序上传到Arduino开发板上，可以发现在之前的示例中也一直有一个上拉电阻，但是在本次演示中，上拉电阻是不存在的，因为本次演示是通过输入上拉模式。Start by ...
arduino怎么用按键开关使led闪烁五次。 以下是一个示例代码: int ledPin = 13; //设置LED连接的引脚 int buttonPin = 2; //设置按钮连接的引脚 int ledState = LOW; //初始化LED状态为低电平 int buttonState; //初始化按钮状态 void setup() {...
更大更好的项目一旦你掌握了基本的闪烁led,简单的传感器和扫频伺服系统,是时候转向更大的了和更好的项目。这通常涉及到将一些简单的草图组合起来,并试图让它们发挥作用在一起。你会发现的第一件事是,有些草图…
const int ledPin =4; //LED灯的引脚为4int buttonState = 0; //用来存储读取按钮引脚的值void setup() {pinMode(ledPin, OUTPUT); //将LED引脚设为输出模式pinMode(buttonPin, INPUT); //将按钮模块设为输入模式}void loop() {//读取button引脚的值buttonState = digitalRead(buttonPin);//如果按钮...
cv.itemconfigure(btn, image=green_button) def get_local_ip(): #获取当前计算机的IP地址 local_ip = "" try: socket_objs = [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)] #print(socket_objs[0][1]) ip_from_ip_port = [(s.connect(("8.8.8.8", 53)), s.getsockname()[0], s.cl...
// when you use the MusicLED as a Color LED CRGB LEDColor(0,0,0); uint8_t Bright = 255; // declare the button BlinkerRGB RGB1("RGBKey"); BlinkerButton Button1("switch"); // rgb1_callback void rgb1_callback(uint8_t r_value, uint8_t g_value, uint8_t b_value, uint8_...