Unitech PA500 Programming Manual

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2.22. Enable/Disable Scan2Key
Function Description:
Enable or disable Scan2Key to put scanned data to standard keyboard input buffer.
Scan2Key is enabled by default.
Function call:
BOOL S2K_Enable(BOOL enable, DWORD timeout);
Parameter: (input)
enable: BOOL: TRUE = Enable scanned data to keyboard buffer
FALSE = Disable scanned data to keyboard
timeout: DWORD: when enable or disable Scan2Key, it will
wait until Scan2Key has been removed from memory or
timeout specified by this parameter.
Parameter: (output)
Return: TRUE : if successfully enabled Scan2Key,
otherwise FALSE
2.23. Send scanner command to decoding chip
Function Description:
Send scanner command to decoder chip. This command will send a serial of bytes to
decoder chip as following: (Esc and BCC will be calculated and added automatically)
Esc, high-length, low-length, command-ID, operation, set, BCC
Please refer to complete command reference on section 4
BOOL HAM_SendCommand(BYTE highlen, BYTE lowlen, BYTE cmdID, BYTE op,
BYTE set);
Parameter: (input)
highlen: BYTE: high byte of command length
lowlen: BYTE: low byte of command length
cmdID: BYTE: command ID
op: BYTE: operation mode for this command
set: BYTE: operand for this command
Return:
TRUE = Indicates the command has been successfully sent to queue to output.
2.24. Only send single command decoding chip
Function Description:
Send command to decoder chip. This is a variation of command HAM_SendCommand.
It sends following command to Hamster: (note, only two bytes without BCC)
Esc, 0x80+cmd
Function call:
BOOL HAM_SendCommand1(BYTE cmd);
Parameter: (input)
cmd: BYTE: command
Return:
TRUE = indicates the command has been successfully sent to queue to output.

Unitech PA500 Specifications

System Memory

SDRAM	64 MB
Flash ROM	64 MB

Display

display resolution	240x320 QVGA
display type	Color Transflective TFT
touch screen	yes

Laser Bar Code Scanner

scan rate	104 scans/sec ± 12 scans/sec
scan angle default	47°±3°
scan angle reduced	35°±3°

Power

main battery voltage	3.7 V
main battery capacity	2200 mAh
rechargeable time	3.5 hours

Operating Environment

operating temperature	32°F to 122°F (0°C to 50°C)
storage temperature	-4°F to 140°F (-20°C to 60°C)
relative humidity	5% ~ 95% (non-condensing)

Weight and Dimensions

weight with battery and scan engine	Under 213 g
length	126 mm
height	23 mm