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 an analog input on your board, it...
通过转到“File”→“Save”,将新草图另存为potentiometer.ino。 将以下代码复制到potentiometer.ino草图中替换为以下代码。 // potentiometer.ino // reads a potentiometer sensor and sends the reading over serial int sensorPin = A0; // the potentiometer is connected to analog pin 0 int ledPin = 13;...
THE POTENTIOMETER >> Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground. This example code is in the public domain.*/intsensorValue =0;voidsetup() { pinMode(A0, INPUT); Serial.begin(9600); }voidloop() {//read the input on analog pin 0:...
ReadAnalogVoltage Reads an analog input on pin 0, converts it to voltage, and prints the result to the serial monitor. Graphical representation is available using serial plotter (Tools > Serial Plotter menu) Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V ...
#include<Servo.h>Servo myservo;// create servo object to control a servoint potpin=0;// analog pin used to connect the potentiometerintval;// variable to read the value from the analog pinvoidsetup() { myservo.attach(9);// attaches the servo on pin 9 to the servo object}voidloop()...
RPM =analogRead(pinRPM); // Potentiometer reading RPM = map(RPM, 0, 1023, 1, 9); if (RPM <= 8) { lc.setLed(1, 7, 8 - RPM, true); lc.setLed(0, 0, 8 - RPM, true); delay(300 / RPM); // Speed setup by potentiometer (100 - 800 RPM) ...
intanalogPin=3;// potentiometer wiper (middle terminal) connected to analog pin 3// outside leads to ground and +5Vintval=0;// variable to store the value readvoidsetup(){Serial.begin(9600);// setup serial}voidloop(){val=analogRead(analogPin);// read the input pinSerial.println(val);...
Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground. This example code is in the public domain. https://www.arduino.cc/en/Tutorial/BuiltInExamples/ReadAnalogVoltage */ // the setup routine runs once when you press reset: ...
Reads repeatedly from an analog input, calculating a running average and printing it to the computer. Keeps ten readings in an array and continually averages them. The circuit: * Analog sensor (potentiometer will do) attached to analog input 0 ...
格瑞图:Arduino-0002-内置示例-模拟读 Analog Read Serial 格瑞图:Arduino-0003-内置示例-最简化代码 Bare Minimum 1、示例代码及解析 (1)代码 /* Blink Turns an LED on for one second, then off for one second, repeatedly. Most Arduinos have an on-board LED you can control. On the UNO, MEGA ...