WINAVR programmer

Development tools for Atmel AVR ... Free for sure ...
http://sourceforge.net/projects/winavr/files/WinAVR/20100110/WinAVR-20100110-install.exe/download

Service manuals, schematics, documentation, programs, electronics, hobby ....

Service manuals, schematics, documentation, programs, electronics, hobby ....

http://www.eserviceinfo.com/download.php?fileid=21614

RS485 to RS232 converter

http://aquaticus.info/rs485_to_rs232

Popular chip MAX232 is used to convert RS232 signals from/to TTL level. MAX485 converts TTL level signals to RS485 standard. RTS line is used to change transmission mode of MAX485. RTS signal is first converted to TTL level by MAX232 then connected to DE and RE/ pins.

Parallel Port Programmer

http://arduino.cc/en/Hacking/ParallelProgrammer

NMEA:: Library for easy decoding of GPS data on the Arduino / Wiring i/o board

http://www.maartenlamers.com/nmea/

Full text search in Ruby on Rails 3 - ferret

http://blog.zmok.net/articles/2006/10/18/full-text-search-in-ruby-on-rails-3-ferret

HOWTO: Specify Serial Ports Larger than COM9

CreateFile() can be used to get a handle to a serial port. The "Win32 Programmer's Reference" entry for "CreateFile()" mentions that the share mode must be 0, the create parameter must be OPEN_EXISTING, and the template must be NULL.

CreateFile() is successful when you use "COM1" through "COM9" for the name of the file; however, the message

INVALID_HANDLE_VALUE

is returned if you use "COM10" or greater.

If the name of the port is \\.\COM10, the correct way to specify the serial port in a call to CreateFile() is as follows:

   CreateFile(
      "\\\\.\\COM10",     // address of name of the communications device
      fdwAccess,          // access (read-write) mode
        0,                  // share mode
      NULL,               // address of security descriptor
      OPEN_EXISTING,      // how to create
      0,                  // file attributes
      NULL                // handle of file with attributes to copy
     );

				

NOTES: This syntax also works for ports COM1 through COM9. Certain boards will let you choose the port names yourself. This syntax works for those names as well.

http://support.microsoft.com/kb/115831

GPS Serial Communication

How to Extract NMEA data from serial device GPS...
http://www.boondog.com/tutorials/gps/gps.html

Configuring a Communications Resource [ Serial Port On Winxp C programming ]

- Setting up serial port using C on Window XP .. @ Windows ...

http://msdn.microsoft.com/en-us/library/Aa363201

GSM/GPRS Module for Arduino

http://microcontrollershop.com/product_info.php?products_id=3555

Motion Sensor Arduino

http://www.ladyada.net/learn/sensors/pir.html