Fez Panda 2 reading ibutton

Good day.

I apologize if I put it in the wrong topic, but this one seemed appropriate, and there is not enough karma for others.

Long time ago I got Fez Panda 2 for myself (I ordered it on dfrobot )

Title	Model	Price
2A Dual Motor Controller	DRI0002	$ 17.00
FEZ Panda II- A .NET Micro Framework Controller	DFR0142	$ 39.90
Bluetooth bee	TEL0023	$ 26.00
IO Expansion Shield For Arduino (V5)	DFR0088	$ 18.00
HKBRAM - without insurance (weight 235.00 g):		$ 7.00
Total:		$ 107.90

Pampered and abandoned. Last night I caught this device in the eyes, and next to the keys with the "tablet" from the intercom. So I decided to try to read the data from it. It works on the 1-Wire interface (which, according to the description of the panda “available on any IO”)



I will not paint his work, who can be interested to read here

To work we need to solder / twist just such a shemka:





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The application code looks like this:

using System;

using System.Threading;



using Microsoft.SPOT;

using Microsoft.SPOT.Hardware;



using GHIElectronics.NETMF.FEZ;

using GHIElectronics.NETMF.Hardware;



namespace iButton

{

public class Program

{

static OneWire ow = new OneWire((Cpu.Pin)FEZ_Pin.Digital.Di4);

static OutputPort led = new OutputPort((Cpu.Pin)FEZ_Pin.Digital.LED, false );



public static void Main()

{

bool ledState = false ;



while ( true )

{

byte [] readall = new byte [8];



if (ow.Search_GetNextDevice(readall))

{

string hex = ByteArrayToString(readall);

Debug.Print( "========================" );

if (readall[0] != 0x01)

{

Debug.Print( "Device is not a DS1990A family device." );

}

Debug.Print(hex);



for ( int i = 0; i < 6; i++)

{

Thread.Sleep(200);

ledState = !ledState;

led.Write(ledState);

}

}

}

}



public static string ByteArrayToString( byte [] ba)

{

string hex = string .Empty;

for ( int i = ba.Length - 1; i >= 0; i--)

{

hex += " " + ByteToHex(ba[i]);

}



return hex;

}



public static string ByteToHex( byte b)

{

const string hex = "0123456789ABCDEF" ;

int lowNibble = b & 0x0F;

int highNibble = (b & 0x0F0) >> 4;

string s = new string ( new char [] { hex[highNibble], hex[lowNibble] });



return s;

}

}

}



* This source code was highlighted with Source Code Highlighter .



using System;

using System.Threading;



using Microsoft.SPOT;

using Microsoft.SPOT.Hardware;



using GHIElectronics.NETMF.FEZ;

using GHIElectronics.NETMF.Hardware;



namespace iButton

{

public class Program

{

static OneWire ow = new OneWire((Cpu.Pin)FEZ_Pin.Digital.Di4);

static OutputPort led = new OutputPort((Cpu.Pin)FEZ_Pin.Digital.LED, false );



public static void Main()

{

bool ledState = false ;



while ( true )

{

byte [] readall = new byte [8];



if (ow.Search_GetNextDevice(readall))

{

string hex = ByteArrayToString(readall);

Debug.Print( "========================" );

if (readall[0] != 0x01)

{

Debug.Print( "Device is not a DS1990A family device." );

}

Debug.Print(hex);



for ( int i = 0; i < 6; i++)

{

Thread.Sleep(200);

ledState = !ledState;

led.Write(ledState);

}

}

}

}



public static string ByteArrayToString( byte [] ba)

{

string hex = string .Empty;

for ( int i = ba.Length - 1; i >= 0; i--)

{

hex += " " + ByteToHex(ba[i]);

}



return hex;

}



public static string ByteToHex( byte b)

{

const string hex = "0123456789ABCDEF" ;

int lowNibble = b & 0x0F;

int highNibble = (b & 0x0F0) >> 4;

string s = new string ( new char [] { hex[highNibble], hex[lowNibble] });



return s;

}

}

}



* This source code was highlighted with Source Code Highlighter .



using System;

using System.Threading;



using Microsoft.SPOT;

using Microsoft.SPOT.Hardware;



using GHIElectronics.NETMF.FEZ;

using GHIElectronics.NETMF.Hardware;



namespace iButton

{

public class Program

{

static OneWire ow = new OneWire((Cpu.Pin)FEZ_Pin.Digital.Di4);

static OutputPort led = new OutputPort((Cpu.Pin)FEZ_Pin.Digital.LED, false );



public static void Main()

{

bool ledState = false ;



while ( true )

{

byte [] readall = new byte [8];



if (ow.Search_GetNextDevice(readall))

{

string hex = ByteArrayToString(readall);

Debug.Print( "========================" );

if (readall[0] != 0x01)

{

Debug.Print( "Device is not a DS1990A family device." );

}

Debug.Print(hex);



for ( int i = 0; i < 6; i++)

{

Thread.Sleep(200);

ledState = !ledState;

led.Write(ledState);

}

}

}

}



public static string ByteArrayToString( byte [] ba)

{

string hex = string .Empty;

for ( int i = ba.Length - 1; i >= 0; i--)

{

hex += " " + ByteToHex(ba[i]);

}



return hex;

}



public static string ByteToHex( byte b)

{

const string hex = "0123456789ABCDEF" ;

int lowNibble = b & 0x0F;

int highNibble = (b & 0x0F0) >> 4;

string s = new string ( new char [] { hex[highNibble], hex[lowNibble] });



return s;

}

}

}



* This source code was highlighted with Source Code Highlighter .





If in the near future I will buy a blank key, then I will try to program it with available data.