您好亲，下面是一个基于Arduino的程序示例，当第一个按钮被按下时，第一个LED持续亮，buzzer同时也开启一秒钟：arduino// 定义按钮和LED引脚#define BUTTON_PIN 2#define LED_PIN_1 3// 定义buzzer引脚#define BUZZER_PIN 4void setup() { // 初始化按钮和LED引脚 pinMode(BUTTON_PIN, INPUT_...
intnote = 1000;// Set the pitch for the buzzer tone inttimeUnit = 100;// This variable will be used to measure dots, dashes, breaks, and pauses charinput;// Variable to save the input to voidsetup () { Serial.begin(9600);//for the connect with the boared } voidloop () { if(...
Arduino - Buzzer Arduino - Motor Arduino - DC Motor Arduino - DC Motor - Limit Switch Arduino - Servo Motor Arduino - MG996R Arduino - Servo Motor controlled by Potentiometer Arduino - Light Sensor Arduino - LDR Module Arduino - Light Sensor Triggers LED Arduino - Light Sensor Triggers Rela...
voidcheckDistance(){longduration=pulseIn(echoPin,HIGH);currentDistance=duration*0.034/2;if(currentDistance<30&&!isAlerting){tone(buzzerPin,2000,300);// 300ms提示音isAlerting=true;}elseif(currentDistance>=30){isAlerting=false;}} 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 这里用pulseIn要注...
Arduino - Buzzer Library Example - Beep Example - Melody Example - Melody Repeat Arduino - Analog Keypad Library Example - Analog Keypad Example - Analog Button ArrayArduino - Door Sensor Toggle LEDIn a previous tutorial, We have learned how to turn on the LED if the door is open, and tur...
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After this, the program goes back to the beginning of theloop()function where it turns the LED on again, and the process repeats. This code results in a LED (connected to pin 13) blinking on and off repeatedly, with each state (on and off) lasting for one second. ...
Arduino Piezo Buzzer Breakout Board Arduino PCD8544 Nokia 3310 LCD Breakout Board Schematic Design Advanced users may find that they need more flexibility that than provided by the pre-made shields and breakout modules. Visual Designer also includes the thousands of embedded peripherals developed for...
A buzzer is nothing but an electronic device that is used to play tones In our example we are plugging the buzzer on the pin number 9, that supports the functionality of writing a PWM signal to it, and not just a plain HIGH or LOW value.The first example of the code will just send ...
int green_led_pin = 8;int buzzer_pin = 10;int smoke_sensor_pin = A0;复制代码 在setup()...