//n is an array of 10 integersintn[10] = {32,27,64,18,95,14,90,70,60,37} ;voidsetup () { }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 (...
Reads a digital input on pin 2, prints the result to the Serial Monitor 从针脚 2 读取数字输入,并打印至串口监视器。 This example code is in the public domain. 此代码示例位于公共域中。 https://www.arduino.cc/en/Tutorial/BuiltInExamples/DigitalReadSerial */ (3)全局变量 // digital pin 2 ...
(2)模拟串口读 - Analog Read Serial This example shows you how to read analog input from the physical world using a potentiometer. Apotentiometeris a simple mechanical device that provides a varying amount of resistance when its shaft is turned. By passing voltage through a potentiometer and into...
Analog input, analog output, serial output Reads an analog input pin, maps the result to a range from 0 to 255 and uses the result to set the pulsewidth modulation (PWM) of an output pin. Also prints the results to the serial monitor. The circuit: * potentiometer connected to analog pi...
Serial.println(sensorValue, DEC); 现在,当你打开Arduino IDE的串口监视器,你会看见“0”的数据流(如果开关打开)或者“1”的数据流(如果开关闭合) 当开关为高电平时,pin13的LED灯会变亮;开关为低电平时,LED灯熄灭 /* Input Pullup Serial This example demonstrates the use of pinMode(INPUT_PULLUP). It...
by Scott Fitzgeraldhttp://www.arduino.cc/en/Tutorial/InputPullupSerialThis example code is in the public domain*/voidsetup() {//start serial connectionSerial.begin(9600);//configure pin2 as an input and enable the internal pull-up resistorpinMode(2, INPUT_PULLUP); ...
Serial.begin(9600); } // the loop routine runs over and over again forever: void loop() { // read the input on analog pin 0: int sensorValue =analogRead(A0); // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V): ...
演示如何使用模拟引脚读取来自某个传感器的输入：The following is a simple Arduino example. Demonstration of how to use analog pins to read the input from a sensor:```cpp// 定义一个变量来存储读取的值int sensorValue = 0;void setup() { // 初始化串口，设置波特率为9600 Serial.begin(9600);...
In this Arduino Serial example, we will write text to the Arduino serial port, which will send it over the USB cable to your computer, which will then display that text in a terminal window. In the ‘setup()’ function mentioned above, add the following lines to start the Arduino serial...
Serial.begin(9600); pinMode(BUTTON_PIN, INPUT); } voidloop(){ Serial.println(digitalRead(BUTTON_PIN)); delay(10); } Nothing fancy here, the 2 importants parts are: pinMode(BUTTON_PIN, INPUT); : we set pin 4 to INPUT so we can read data from the button. ...