It's a simple app with just two buttons that part of a big IOT project you can customize the UI as you want this is just a simple example it's job to send a command from the android device to the microcontroller you work in we will show an simple example with arduino
You can use BluetoothMC library for easy bluetooth communication with micro controller
- Apply material design
- Easy to use
- The code well documented and easy to understand
- Easy to integrate at any exciting project
The main usage for this after you done your customization in he UI is to control a microcontroller example of this control a car, Prostheses ..etc. The options and ideas is a lot
- If you want to use the project in it's state and customize it as your needs
The connection to Bluetooth device is already handled
only you need to use a method sendData and call it when you want to
send a data or action to the microcontroller it takes a string as input parameter
in this case the data that will be send and it's preferred to be character and
that's it :D
You also may need to change the application name you can do it
form the strings file and put your awesome app name
<string name="app_name">BluetoothSend</string>
- If you want to integrate this functionality to exciting project follow along with these steps
1- Add the bluetooth permissions in the manifest
<!-- Bluetooth Permissions -->
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
2- Also in the manifest make the screen Orientation the app right now
does not handle the screen Orientation in the runtime
android:screenOrientation="portrait"
or
android:screenOrientation="landscape"
3- Don't forget to add the design support dependency in build.gradle
compile 'com.android.support:design:25.3.1'
4- Put the required resources files
- in the drawable , layout and strings you will find them in this example
5- Create a Bluetooth devices activity that will help to find and connect to bluetooth device BluetoothDevices.java BluetoothDevices.xml
6- Add the Bluetooth device adapter that handle show and display the devices
in the Bluetooth Devices activity
This the adapter code BluetoothDeviceAdapter.java
BluetoothDeviceItem.xml
7- Now the last step is to configure the activity that will handle sending and connecting to the microcontroller you can find the code for this logic in the MainActivity.java in onResume() you connect to the device and in
onStop you disconnect from the devices using the Disconnect()
method and the ConnectBT AsyncTask to connect to the device
in background thread after the connection is success use the
sendData to communicate with the microcontroller
I use Arduino as simple example for test the code but it work for the other microcontrollers and this the Arduino code BluetoothSendArduino.ino
Copyright (c) 2017 Ahmed-Abdelmeged.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
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