DN CEC Develop Apps Embedded Android Networking Day1

8/13/2019 DN CEC Develop Apps Embedded Android Networking Day1

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Develop Apps for Embedded AndroidNetworking

01/13/2014

Fred Eady

Class 1: A Basic4Android Wireless Digital I/O App


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A Basic4Android Wireless Digital I/O App

Basic4Android Serial Library

Code a Simple Bluetooth Engine

Setup and Code the Remote Device Basic4Android RandomAccessFile Library

Code a Data Communications Activity

Combine the Simple Bluetooth Enginewith a Communications Activity toProduce a Remote Control App

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AGENDA


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Allows Communication with Bluetooth Devices Functionality Based on RFCOMM

Usage Based on the Serial Object Properties

Allows Administration of the Bluetooth AdapterUsing the BluetoothAdmin Object

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Basic4Android Serial Library


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Code a Simple Bluetooth EngineStep 1: Declare the Global Variables


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Code a Simple Bluetooth EngineStep 2: Code the bluAdmin/ bluSPP Object InitializationStep 3: Write Code to Load Layout the File simpleEngine


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Code a Simple Bluetooth EngineStep 5: Write the Bluetooth Administration Code


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Code a Simple Bluetooth EngineStep 6: Write the Device Discovery Code


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Code a Simple Bluetooth EngineStep 7: Write the Device Selection/Connection Code


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Code a Simple Bluetooth EngineStep 8: Test Our Simple Bluetooth App

Attempt to connect to EDTPBLU.

1234 and CONNECTED


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Setup and Code the Remote Device


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Setup and Code the Remote Device


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Setup and Code the Remote DevicePIC32MX Atomic Port I/O Operations

TRISxSET - TRISxCLR

PORTxSET PORTxCLR - PORTxINV

LATxSET

LATxCLR

LATxINV

TRISACLR = 0x0001 RA0 = OUTPUT

TRISASET = 0x0001 RA0 = INPUT

LATASET = 0x0001 RA0 = 1

LATAINV = 0x0001 RA0 = 0


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Setup and Code the Remote DeviceStep 1: Define the WF32 LEDs 5 and 6.

Step 2: Code the LED Command Handler.

TRISFCLR = 0x0001; //WF32 RF0 = OUTPUT - LED5

TRISGCLR = 0x0040; //WF32 RG6 = OUTPUT - LED6

if(CharInQueue()) //print received character

{

biteIn = recvchar();switch(biteIn)

{

case 0x35:

LATFINV = 0x0001; //LED5

break;

case 0x36:LATGINV = 0x0040; //LED6

break;

}

}

This code is added to the main

function of the EDTP EmbeddedBluetooth Driver.


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Bluetooth Usage Based on the AsyncStreamsObject Properties

Allows Reading and Writing to I/O Streams

Without Blocking the Main Thread Facilitates Easy Movement of Any Amount of

Data

Easily Transports Files, Arrays and Objects

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Basic4Android RandomAccessFile Library


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Step 1: Declare the Global Variables


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Step 2: Code the Layout Sequence and Pipe Initialization.


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Step 3: Code the Button Event Handlers


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A Bluetooth Remote Control App


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Day 1 Topic Review

We Used BluetoothAdmin and SerialObjects to Spawn a Bare Bones BluetoothEngine.

We Used a Digilent WF32 to Create anEmbedded Bluetooth-Capable Device.

We Attached an AsyncStreams-Based

Basic4Android Module to Our SimpleBluetooth Engine and Built a Useful

Android App.

Documents

DN CEC Develop Apps Embedded Android Networking Day1