Han*_*oko 6 android bluetooth arduino
我已经创建了一个Android应用程序,可以使用蓝牙与我的Arduino进行通信.但是当我从我的Android设备向Arduino发送数据时,Arduino没有响应我发送的内容.我可以从我的Android设备连接到我的Arduino.所以这不是问题.
这是我的Android完整脚本.
package nl.handoko.LumaMini;
import java.io.IOException;
import java.io.OutputStream;
import java.util.UUID;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
private static final String TAG = "LumaMini";
private static final int REQUEST_ENABLE_BT = 1;
private BluetoothAdapter btAdapter = null;
private BluetoothSocket btSocket = null;
private OutputStream outStream = null;
Button fourty, thirty, twenty, twelve, automatic, manual;
TextView message;
// Well known SPP UUID
private static final UUID MY_UUID =
UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
// Server's MAC address
private static String address = "98:D3:31:30:09:43";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(TAG, "In onCreate()");
setContentView(R.layout.activity_mainnn);
fourty = (Button) findViewById(R.id.button1);
thirty = (Button) findViewById(R.id.button4);
twenty = (Button) findViewById(R.id.button2);
twelve = (Button) findViewById(R.id.button5);
automatic = (Button) findViewById(R.id.button3);
manual = (Button) findViewById(R.id.button6);
message = (TextView) findViewById(R.id.textView1);
fourty.setText("40 Leds");
thirty.setText("30 Leds");
twenty.setText("20 Leds");
twelve.setText("12 Leds");
automatic.setText("Automatic");
manual.setText("Manual");
message.setText("Using this app you can take full control of the Luma Mini!" +
"When it's running on automatic please switch back to manual first before switching to other versions.");
btAdapter = BluetoothAdapter.getDefaultAdapter();
checkBTState();
fourty.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
sendData("a");
Toast msg = Toast.makeText(getBaseContext(),
"40 Leds version", Toast.LENGTH_SHORT);
msg.show();
}
});
thirty.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
sendData("b");
Toast msg = Toast.makeText(getBaseContext(),
"30 Leds version", Toast.LENGTH_SHORT);
msg.show();
}
});
twenty.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
sendData("c");
Toast msg = Toast.makeText(getBaseContext(),
"20 Leds version", Toast.LENGTH_SHORT);
msg.show();
}
});
twelve.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
sendData("d");
Toast msg = Toast.makeText(getBaseContext(),
"12 Leds version", Toast.LENGTH_SHORT);
msg.show();
}
});
automatic.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
sendData("e");
Toast msg = Toast.makeText(getBaseContext(),
"Run automatically", Toast.LENGTH_SHORT);
msg.show();
}
});
manual.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
sendData("f");
Toast msg = Toast.makeText(getBaseContext(),
"Manually switch Leds", Toast.LENGTH_SHORT);
msg.show();
}
});
}
@Override
public void onResume() {
super.onResume();
Log.d(TAG, "...In onResume - Attempting client connect...");
// Set up a pointer to the remote node using it's address.
BluetoothDevice device = btAdapter.getRemoteDevice(address);
// Two things are needed to make a connection:
// A MAC address, which we got above.
// A Service ID or UUID. In this case we are using the
// UUID for SPP.
try {
btSocket = device.createRfcommSocketToServiceRecord(MY_UUID);
} catch (IOException e) {
errorExit("Fatal Error", "In onResume() and socket create failed: " + e.getMessage() + ".");
}
// Discovery is resource intensive. Make sure it isn't going on
// when you attempt to connect and pass your message.
btAdapter.cancelDiscovery();
// Establish the connection. This will block until it connects.
Log.d(TAG, "...Connecting to Remote...");
try {
btSocket.connect();
Log.d(TAG, "...Connection established and data link opened...");
} catch (IOException e) {
try {
btSocket.close();
} catch (IOException e2) {
errorExit("Fatal Error", "In onResume() and unable to close socket during connection failure" + e2.getMessage() + ".");
}
}
// Create a data stream so we can talk to server.
Log.d(TAG, "...Creating Socket...");
try {
outStream = btSocket.getOutputStream();
} catch (IOException e) {
errorExit("Fatal Error", "In onResume() and output stream creation failed:" + e.getMessage() + ".");
}
}
@Override
public void onPause() {
super.onPause();
Log.d(TAG, "...In onPause()...");
if (outStream != null) {
try {
outStream.flush();
} catch (IOException e) {
errorExit("Fatal Error", "In onPause() and failed to flush output stream: " + e.getMessage() + ".");
}
}
try {
btSocket.close();
} catch (IOException e2) {
errorExit("Fatal Error", "In onPause() and failed to close socket." + e2.getMessage() + ".");
}
}
private void checkBTState() {
// Check for Bluetooth support and then check to make sure it is turned on
// Emulator doesn't support Bluetooth and will return null
if(btAdapter==null) {
errorExit("Fatal Error", "Bluetooth Not supported. Aborting.");
} else {
if (btAdapter.isEnabled()) {
Log.d(TAG, "...Bluetooth is enabled...");
} else {
//Prompt user to turn on Bluetooth
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
}
}
private void errorExit(String title, String message){
Toast msg = Toast.makeText(getBaseContext(),
title + " - " + message, Toast.LENGTH_SHORT);
msg.show();
finish();
}
private void sendData(String message) {
byte[] msgBuffer = message.getBytes();
Log.d(TAG, "...Sending data: " + message + "...");
try {
outStream.write(msgBuffer);
} catch (IOException e) {
String msg = "In onResume() and an exception occurred during write: " + e.getMessage();
msg = msg + ".\n\nCheck that the SPP UUID: " + MY_UUID.toString() + " exists on server.\n\n";
errorExit("Fatal Error", msg);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
这是我的Arduino脚本:
#include <SoftwareSerial.h>
#include <TimerOne.h>
#define Rx 2
#define Tx 3
#define seconds 4
char serialData; // Serial data memory
int counter1; // Overflow memory
int action; // Action trigger
int once = 0; // Run only once
SoftwareSerial Bluetooth(Rx, Tx);
void setup(){
pinMode(Tx, OUTPUT); // Configure Tx as OUTPUT (Transmitter)
pinMode(Rx, INPUT);
delay(1000);
Bluetooth.begin(9600);
Serial.begin(1200);
delay(1000);
Serial.print("Bluetooth ready");
Bluetooth.flush();
TimerOneSetup(); // Run the setup for Timer One
for(int i = 5; i <= 8; i++){ // Make pins 5, 6, 7 and 8 OUTPUT
pinMode(i, OUTPUT);
}
}
void interrupt1(){ // Timer One loop
counter1++; // Count the amount of seconds has passed
if (counter1 == seconds){ // Trigger the next action after a several amount of seconds (Default: 4 seconds)
action++;
counter1 = 0;
}
if (action > 3){ // Reset action trigger when after all actions were runned
action = 0;
}
}
void loop(){ // Endless loop
if (Serial.available()){ // Wait for data recieved from Local device
serialData = Serial.read(); // Put recieved data in memory
Serial.print("Data recieved from Local device: ");
Serial.println(serialData);
}
if (Bluetooth.available()){ // Wait for data recieved from Bluetooth device
serialData = Bluetooth.read(); // Put recieved data in memory
Serial.print("Data recieved from Bluetooth device: ");
Serial.print(serialData);
}
if (once == 0){ // This script will be run only once
serialData = 'e'; // Put switch on automatic on startup
once++; // Get into the next stage which may be run only once
}
switch(serialData){ // Perform action on state of the switch
case 'a':
fourtyLeds(); // Show the 40 Leds version of the Luma Mini
break;
case 'b':
thirtyLeds(); // Show the 30 Leds version of the Luma Mini
break;
case 'c':
twentyLeds(); // Show the 20 Leds version of the Luma Mini
break;
case 'd':
twelveLeds(); // Show the 12 Leds version of the Luma Mini
break;
case 'e':
while(serialData == 'e'){ // Keep changing different Led versions of the Luma Mini automatically
switch(action){
case 0: // Wait for the action trigger to hit the first action
fourtyLeds(); // Show the 40 Leds version of the Luma Mini
break;
case 1: // Wait for the action trigger to hit the second action
twelveLeds(); // Show the 12 Leds version of the Luma Mini
break;
case 2: // Wait for the action trigger to hit the third action
twentyLeds(); // Show the 20 Leds version of the Luma Mini
break;
case 4: // Wait for the action trigger to hit the fourth action
thirtyLeds(); // Show the 30 Leds version of the Luma Mini
break;}
if (Serial.read() == 'f'){ // Wait for data recieved from Local device
serialData = Serial.read(); // Put recieved data in memory
Serial.print("Data recieved from Local device: ");
Serial.println(serialData);
}
if (Bluetooth.read() == 'f'){ // Wait for data recieved from Bluetooth device
serialData = Bluetooth.read(); // Put recieved data in memory
Serial.print("Data recieved from Bluetooth device: ");
Serial.println(serialData);
}
break;
}
}
}
void BluetoothSetup(){
pinMode(Tx, OUTPUT); // Configure Tx as OUTPUT (Transmitter)
pinMode(Rx, INPUT); // Configure Rx as INPUT (Reciever)
Bluetooth.begin(9600); // Set Bluetooth baud rate to default baud rate 38400
Bluetooth.print("\r\n+STWMOD=0\r\n"); // Set the Bluetooth to work in slave mode
Bluetooth.print("\r\n+STNA=Luma Mini\r\n"); // Set Bluetooth name to Luma Mini
Bluetooth.print("\r\n+STOAUT=1\r\n"); // Permit paired device to connect
Bluetooth.print("\r\n+STAUTO=0\r\n"); // Auto-connection should be forbidden here
delay(2000);
Bluetooth.print("\r\n+INQ=1\r\n"); // Make this Bluetooth Slave inquirable
Serial.println("The slave Bluetooth is inquirable!");
delay(2000);
Bluetooth.flush();
}
void TimerOneSetup(){
Timer1.initialize(1000000); // Initialize Timer One for an overflow exactly every 1 second
Timer1.attachInterrupt(interrupt1); // Open the Timer One loop
}
void fourtyLeds(){ // Show the 40 Leds version of the Luma Mini
for(int i = 5; i <= 8; i++){
digitalWrite(i, LOW);
}
}
void thirtyLeds(){ // Show the 30 Leds version of the Luma Mini
digitalWrite(5, HIGH);
digitalWrite(6, LOW);
digitalWrite(7, LOW);
digitalWrite(8, LOW);
}
void twentyLeds(){ // Show the 20 Leds version of the Luma Mini
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(7, LOW);
digitalWrite(8, HIGH);
}
void twelveLeds(){ // Show the 12 Leds version of the Luma Mini
for (int i = 5; i <= 8; i++){
digitalWrite(i, HIGH);
}
}
我的问题:如何将Android数据中的CHAR数据发送到我的Arduino？在我的脚本上编辑什么？
我还没有浏览过你的代码。但从这个问题来看，我建议在 Android 应用程序测试并开发到一定水平之前，不要进行 Arduino FW 编码。前进的道路可能是：
您可以在 Arduino + 调试 上查看类似的问题HC-05 蓝牙模块。
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