Status by 15 Nov 2005

Handyboard Controlling using Pocket PC

Two simple Interactive C commands can be contorlled by Pocket PC.
- beep();
- printf();

Pocket PC sends a command string to Handyboard via Serial Port. Two characters of opcode is for faster tranmission speed. The format of the command string:

%<Opcode>;<Parameter>%

%bp% = beep();

%pr;abc% = printf("abc");

After completing one command string at handyboard side, handyboard sends an acknowledgement back to the Pocket PC.

acknowledgement character
'0' = command completed
'1' = command incompleted


Further enhancement
Reserved characters,for example fisrt 31 ascii characters, will be used for delimeter instead of '%' ';' in communication.
Ref: http://www.lookuptables.com/

Current Connection between Pocket PC and HandyBoard

Null modem adapter is used to connect between two devices via serial port.