analogRead(pin); 1. pin- 要读取的模拟输入引脚的编号(大多数电路板上为0至5,Mini和Nano上为0至7,Mega上为0至15) AI检测代码解析 int analogPin = 3;//使用analog in 引脚3 作为电压标记 int val = 0; // 读取到的电压值 void setup() { Serial.begin(9600); //串口传输波特率 1s传输的字节 } ...
pinMode(CLK_PIN,输入);// 将引脚设置为输入 pinMode(DATA_PIN,输入); pinMode(BTN_PIN,INPUT_PULLUP); clockPinState = digitalRead(CLK_PIN); pinMode(SET_FREQUENCY_HZ, INPUT);// 将引脚设置为输入 pinMode(SET_FREQUENCY_KHZ,输入); pinMode(SET_FREQUENCY_MHZ,输入); pinMode(ENABLE_DISABLE_OUTPU...
附上官网对于AnalogPin的一段话,也是要求在analogRead之前将接口设置为INPUTDetails and CaveatsThe analogRead command will not work correctly if a pin has been previously set to an output, so if this is the case, set it back to an input before using analogRead. 小猪会轮滑 赫赫有名 13 这个最...
登录后复制Serial.print(" ac voltage ") ;// this gives name “ac voltage” to the printed analog valueSerial.print(n) ;// this simply prints the ac voltage value int m;// initialise variable m float n;//initialise variable n void setup() { pinMode(A0,INPUT); // set pin a0 as i...
格瑞图:Arduino-0017-内置示例-模拟输入串口输出 AnalogInOutSerial 1、示例代码及解析 (1)代码 /*Analog InputDemonstrates analog input by reading an analog sensor on analog pin 0 andturning on and off a light emittingdiode(LED) connected to digital pin 13.The amount of time the LED will be on...
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 pin 0. Center pin of the potentiometer goes to the analog pin. ...
SupportedPinConfigurations 返回每个引脚的功能列表 方法 CommonBaudRates() 返回常用波特率的列表。 CreateAnalogController(Int32) 为此板创建一个日志控制器。 CreateGpioController() 为开发板创建 GPIO 控制器实例。 这允许使用数字输入/输出引脚。 CreateI2cDevice(I2cConnectionSettings) ...
ADMUX = 0x40 | (1 & 0x07);// set admux to look at Analogpin A1 - Master Volume while(!(ADCSRA & 0x10));// wait for adc to be ready ADCSRA = 0xf5;// restart adc delay(10); while(!(ADCSRA & 0x10));// wait for adc to be ready ...
//set the resolution to 12 bits (0-4096) analogReadResolution(12); } void loop() { // read the analog / millivolts value for pin 2: int analogValue = analogRead(1); int analogVolts = analogReadMilliVolts(2); // print out the values you read: ...
#define ANALOG_PIN A0 #define OLED_RESET -1 // 重置引脚 #(如果共享 Arduino 重置引脚,则为 -1) Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); doublevImag[SAMPLES]; doublevReal[SAMPLES]; unsignedlongsampling_period_us; ...