Consultar lista con linq

            var v = new List<Dato>();
            v.Add(new Dato(1, "carlos"));
            v.Add(new Dato(2, "abc"));

            var qry = from p in v
                        where p._ci == 2
                        select p;
            if (qry.Count() > 0)
                Console.WriteLine(qry.First()._nombre);

Receptor bluetooth con Arduino y android

Ejemplo de door lock (con codigo C# y para Android)

http://www.instructables.com/id/Easy-Bluetooth-Enabled-Door-Lock-With-Arduino-An/

http://robotosh.blogspot.com/2012/07/arduino-jy-mcu-bluetooth.html

http://robotosh.blogspot.no/2012/07/controlling-lamp-using-pc-or-android.html

Para conocer la MAC address del dispositivo bluetooth, acceder con alguna aplicación para Android (ej, Bluetooth SPP)

Ej: 

linvor (rssi:-55dBM)
00:12:08:24:01:61
Class:1f00 Bind:Bonded

Instrucciones:

Features:

1) Wireless serial bluetooth port.

2) With free power adapter bottom board come with well power regulator.

User can connect 3.3 to 5VDC and connect TX and RX to your control IO (general 3.3 to 5V digital input output of MCU or arduino IO is ok, or general TLL IO)

3) Easy to connect this module with PC, just search and key "1234" passcode.

4) With white SMD LED on the adapter board, can see the Bluetooth connection status.

　

Step to connect:

1) Connect the wiring, power up, while the device is not connected, the bluetooth module board has a white LED flashing

2) At PC side, search bluetooth device.

3) Found name called "LINVOR" device

4) Connect it, and passcode is "1234"

5) While connection is ok, you can see the LED become always on.

6) Enjoy

　

Basically, user can only use 2 to 5 pin in most of the application

PIN	NAME	FUNCTION
1	KEY	For configuration use (normally not connected)
2	VCC	3.3 to 5V input
3	GND	Ground
4	TXD	TX transmit pin
5	RXD	RX receive pin
6	STATE	Connection status

Industrial serial port bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it

simply for a serial port replacement to establish connection between MCU and GPS, PC to your embedded project and etc.

　

Migrar mantis a nueva version de MySql

Exportar BD 

mysqldump -P 3360 -h Xmantis -uroot -ppasdfsewr234w0rd mantis > mantis.sql

Importar BD

mysql -P 3306 -h localhost -uroot -proot mantisPrueba < mantis.sql

Transformar passwords al nuevo formato

UPDATE mysql.user SET Password = OLD_PASSWORD('root')

WHERE Host = 'localhost' AND User = 'root';

FLUSH PRIVILEGES;

SET PASSWORD FOR 'root'@'localhost' = OLD_PASSWORD('root');