28140 Parallax Inc, 28140 Datasheet - Page 11

• Manufacturer Part Number: 28140
• Description: READER MODULE RFID
• Manufacturer: Parallax Inc

Specifications of 28140

• Rf Type: Read Only
• Frequency: 125kHz
• Features: Single 5V Power Supply
• Package / Case: Module
• Product: Microcontroller Accessories
• Data Bus Width: 8 bit
• Clock Speed: 125 KHz
• Interface Type: USB
• Operating Supply Voltage: 5.5 V
• Board Size: 46.99 mm x 69.22 mm x 21.84 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Bad_Char:
Bad_Tag:
Tag_Found:
' -----[ Subroutines ]-----------------------------------------------------
' Prints name associated with RFID tag
Show_Name:
Copyright © Parallax Inc.
NEXT
tagNum = 0
GOSUB Show_Name
FREQOUT Spkr, 1000 */ TmAdj, 115 */ FrAdj
PAUSE 1000
GOTO Main
GOSUB Show_Name
HIGH Latch
FREQOUT Spkr, 2000 */ TmAdj, 880 */ FrAdj
LOW Latch
GOTO Main
END
DEBUG DEC tagNum, ": "
LOOKUP tagNum,
DO
LOOP
RETURN
READ idx, char
IF (char = 0) THEN EXIT
DEBUG char
idx = idx + 1
[Name0, Name1, Name2, Name3], idx
RFID Card Reader Serial & USB (#28140 / 28340)
' try next tag
' print message
' groan
' print name
' remove latch
' beep
' restore latch
' point to first character
' read character from name
' if 0, we're done
' otherwise print it
' point to next character
v2.1 8/28/2008 Page 11 of 11