AnalogReadSerial Reads an analog input on pin 0, prints the result to the serial monitor. 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. */ 功能:读取模拟输入引脚A0的值,并将其打印到串行监视器。 ...
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 and ground. This example code is in the public domain. https://www.arduino.cc/en/Tutorial/BuiltInExamples/ReadAnalogVolta...
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...
// 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): float voltage = sensorValue * (5.0 / 1023.0); // print out the value you read: Serial.println(voltage); } [Get Code] 更多 ...
格瑞图:Arduino-0007-内置示例-读取模拟电压 Read Analog Voltage 格瑞图:Arduino-0008-内置示例-非延迟闪烁 Blink Without Delay 格瑞图:Arduino-0009-内置示例-按钮 Button 格瑞图:Arduino-0010-内置示例-去抖 Debounce 格瑞图:Arduino-0011-内置示例-数字输入上拉 DigitalInputPullup ...
int analogPin = 3; // potentiometer connected to analog pin 3 int val = 0; // variable to store the read value void setup() { pinMode(ledPin, OUTPUT); // sets the pin as output } void loop() { val = analogRead(analogPin); // read the input pin ...
Center pin of the potentiometer goes to the analog pin. side pins of the potentiometer go to +5V and ground * LED connected from digital pin 9 to ground created 29 Dec. 2008 modified 9 Apr 2012 by Tom Igoe This example code is in the public domain. ...
{// put your setup code here, to run once:Serial.begin(115200);while(!Serial){}index=0;mean=0;maximum=255;minimum=0;hysteresis=0;currentphase=false;lastnull=0;prevnull=0;Serial.print("deltadeltaindex");Serial.print("\t");Serial.print("deltaindex");Serial.print("\t");Serial.println...
// code from geobruce (Bruce Helsen, Belgium) #include <LiquidCrystal.h> LiquidCrystal lcd(12, 11, 5, 4, 3, 2); #define DEBOUNCE_DELAY 5 #define REPEAT_DELAY 250 int analogInPin = 0; int ledpin = 12; int meanSensorValue; String f = "splash"; int sensitivity = 125; unsigned in...
// put your setup code here, to run once: pinMode(13, OUTPUT); Serial.begin(9600); } void loop() { char ch; if(Serial.available()){ ch = Serial.read(); flashDashDot(MorseTable[ch]); delay(dotLength*2); } } void flashDashDot(const char * morseCode) ...