Arduino无法同时在led屏幕和串行监视器中输出

Question

我正在尝试使用LiquidCrystal库在两个LED屏幕上以及在串行监视器上进行Arduino输出（稍后将输出到txt文件或类似文件）。

在我的代码中，我注释掉了Serial。开始（9600），然后屏幕正确输出，但一旦我包括它，串行监视器输出良好，但屏幕翻转并输出乱码。我是个新手，我知道有一些基本的东西我不知道，比如9600应该增加，因为可能需要这么大的功率？

#include <LiquidCrystal.h>
#include <DHT.h>
#include <math.h>

/*
    * Cannot do both screens and log in the console.
    * Currently Serial 9600 is commented out, to allow to print on the screen
    * Need Fixing
*/

#include "DHT.h"

#define DHTPIN 8     // what digital pin we're connected to


#define DHTTYPE DHT11   // DHT 11
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor

DHT dht(DHTPIN, DHTTYPE);

LiquidCrystal lcd(1, 2, 4, 5, 6, 7);

void setup() {
    //Serial.begin(9600);
    Serial.println("Temperature Recorder");

    dht.begin();

    // Now LiquidCrystal led monitor stuff
    lcd.begin(16,2);
    lcd.setCursor(2,0);
    lcd.print("** Wanet **");
    delay(1500);
    lcd.setCursor(1,1);
    lcd.print("Motherfuckers.");
    delay(3000);
    lcd.clear();
}

void loop() {
    // Wait a few seconds between measurements.
    delay(1000);

    // Reading temperature or humidity takes about 250 milliseconds!
    // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
    float h = dht.readHumidity();
    // Read temperature as Celsius (the default)
    float t = dht.readTemperature();
    // Read temperature as Fahrenheit (isFahrenheit = true)
    float f = dht.readTemperature(true);

    // Check if any reads failed and exit early (to try again).
    if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
    }

    // Compute heat index in Fahrenheit (the default)
    float hif = dht.computeHeatIndex(f, h);
    // Compute heat index in Celsius (isFahreheit = false)
    float hic = dht.computeHeatIndex(t, h, false);

    Serial.print("Humidity: ");
    Serial.print(h);
    Serial.print(" %\t");
    Serial.print("Temperature: ");
    Serial.print(t);
    Serial.print(" *C ");
    Serial.print(f);
    Serial.print(" *F\t");
    Serial.print(" | Heat index: ");
    Serial.print(hic);
    Serial.print(" *C ");
    Serial.print(hif);
    Serial.println(" *F");
    Serial.println("------------------------------------");

    //   led screen printing
    lcd.setCursor(0,0);
    lcd.print("Temp:  Humidity:");
    lcd.setCursor(0,1);
    lcd.print(t);
    lcd.print("   ");
    lcd.print(round(f));
    lcd.print("%");

    delay(5000);
    lcd.clear();
    lcd.setCursor(2,0);
    lcd.print("The world");
    lcd.setCursor(4,1);
    lcd.print("OURS");
    delay(6000);
}

干杯

Answer 1

lcd显示器使用其他Arduino引脚。D1与串行通信共享。

Answer 2

关于Arduino系列的文件

它通过数字引脚0（RX）和1（TX）进行通信，并通过USB与计算机进行通信。因此，如果使用这些功能，则不能同时将引脚0和1用于数字输入或输出。

您有两个选项，或者不使用这两个引脚

像这样的液晶lcd（2，3，4，5，6，7）

或者，如果您必须拥有这些pin，您可以考虑使用类似softwareSerial的库来模拟串行通信，这是您选择的一对pin。但是通过USB的串行监视器无论如何都无法工作。