如何通过蓝牙从 Unity C# android 应用程序发送字符串到 Arduino？

Question

当我尝试发送字符串并在 arduino 上验证它时，它不会传递任何 if 语句。device.send() 是我从 Tech Tweaking 的名为 Android & Microcontrollers / Bluetooth 的资产包中使用的方法。如何将字符串从 Unity C# Android 应用程序发送到 arduino 并传递 if 语句？

统一C#代码

device.send (System.Text.Encoding.ASCII.GetBytes("0,0"));

Arduino代码

#include <Wire.h>
#include <Adafruit_MotorShield.h>
Adafruit_MotorShield AFMS = Adafruit_MotorShield(); 
Adafruit_StepperMotor *myMotor = AFMS.getStepper(200, 2);

#include <SoftwareSerial.h>
SoftwareSerial Bluetooth(10, 9); // RX, TX
//int LED = 13; // the on-board LED


String Data; // the data received

int LED = 12; // LED on bread board

int height;
void setup() {
  Bluetooth.begin(38400);
  Serial.begin(38400);
  Serial.println("Waiting for command...");
  Bluetooth.println("Send 1 to turn on the LED. Send 0 to turn Off");
  pinMode(LED,OUTPUT);

  AFMS.begin();  // create with the default frequency 1.6KHz


  myMotor->setSpeed(100);  // 10 rpm   

  }

void loop() {
  if (Bluetooth.available()){ //wait for data received
  Data=Bluetooth.read();
if(Data == "0,1"){  
  digitalWrite(LED,1);
  Serial.println("LED On!");
  Bluetooth.println("LED On!");
  Serial.println("Single coil steps");
   myMotor->step(500, FORWARD, SINGLE); 

   }
else if(Data == "0,0"){
   digitalWrite(LED,0);
   Serial.println("LED Off!");
   Bluetooth.println("LED Off!");
   myMotor->step(500, BACKWARD, SINGLE); 
   }
else{;}


delay(100);
}

Answer 1

我能够解决它。请记住，我使用的是由 Tech Tweaking 提供的名为 Android 和微控制器/蓝牙的 Unity 资源，这就是 device.send() 的来源。

C# 代码

device.send(System.Text.Encoding.ASCII.GetBytes ("0,1" + '\n'));

Arduino代码

#include <SoftwareSerial.h>
SoftwareSerial Bluetooth(10, 9); // RX, TX
String data = "";
int LED = 12; 


void setup() {
  //Bluetooth module baud rate which I set using AT commands
  Bluetooth.begin(38400);
  //Serial baud rate which I use to communicate with the Serial Monitor in the Arduino IDE
  Serial.begin(9600);
  Serial.println("Waiting for command...");

  pinMode(LED,OUTPUT);
}

void loop() {

 if(Bluetooth.available() > 0) {
     data = Bluetooth.readStringUntil('\n');

     if (data == "0,1") {
         digitalWrite(LED,1);
         Serial.println("LED ON!"); 
 }
}