28142 Parallax Inc, 28142 Datasheet
28142
Specifications of 28142
Available stocks
Related parts for 28142
28142 Summary of contents
Page 1
... RFID Reader Module (#28140) RFID Rectangle Tag (#28141) RFID 50 mm Round Tag (#28142) 0.14” (3.6mm) Introduction Designed in cooperation with Grand Idea Studio (http://www.grandideastudio.com/), the Parallax Radio Frequency Identification (RFID) Reader Module is the first low-cost solution to read passive RFID transponder tags up to 1¾” - 3” inches away depending on the tag (see list below). The RFID Reader ...
Page 2
The Parallax RFID Reader Module works exclusively with the EM Microelectronics-Marin SA EM4100-family of passive read-only transponder tags. A variety of different tag types and styles exist with the most popular made available from Parallax. Each transponder tag contains a ...
Page 3
Communication Protocol Implementation and usage of the RFID Reader Module is straightforward. BASIC Stamp 1, 2, and SX28AC/DP code examples (SX/B) are included at the end of this documentation. The RFID Reader Module is controlled with a single TTL-level active-low ...
Page 4
... Rectangle Tag (#28141) Round Tag (#28142) Actual tag dimensions may vary. Contact Parallax for specific information. Parallax, Inc. • RFID Reader Module (#28140) •Updated 02/2006 v1.1 Test Specification Conditions Min ...
Page 5
Optional Tag Information Even though Parallax only carries a Round Tag and a Rectangle Tag the following values were obtained from different tags available in the market. ISO Card: 6.3cm (2.5") +/- 10% World Tag 50mm: 6.8cm (2.7") +/- 10% ...
Page 6
Parallax RFID Reader Module's antenna was designed with a specific inductance and "Q" factor for 125 kHz RFID operation at a tag read distance 1¾” - 3” inches. Example Code The following code examples ...
Page 7
EEPROM Data ]----------------------------------------------------- Tags: EEPROM ("0F0184F20B") EEPROM ("0F01D9D263") EEPROM ("04129C1B43") EEPROM ("0000000000") EEPROM ("0000000000") ' -----[ Initialization ]-------------------------------------------------- Reset: HIGH Enable LOW Latch ' -----[ Program Code ]---------------------------------------------------- Main: LOW Enable SERIN RX, T2400, ($0A) SERIN RX, T2400, ...
Page 8
GOTO Main END ' ========================================================================= ' ' File....... RFID.BS2 ' Purpose.... RFID Tag Reader / Simple Security System ' Author..... (c) Parallax, Inc. -- All Rights Reserved ' E-mail..... support@parallax.com ' Started.... ' Updated.... 07 FEB 2005 ' ' {$STAMP ...
Page 9
SevenBit CON $2000 Inverted CON $4000 Open CON $8000 Baud CON T2400 #SELECT $STAMP #CASE BS2, BS2E TmAdj CON $100 FrAdj CON $100 #CASE BS2SX TmAdj CON $280 FrAdj CON $066 #CASE BS2P TmAdj CON $3C5 FrAdj CON $044 #CASE ...
Page 10
Program Code ]---------------------------------------------------- Main: LOW Enable #IF __No_SPRAM #THEN SERIN RX, T2400, [WAIT($0A), STR buf\10] #ELSE SERIN RX, T2400, [WAIT($0A), SPSTR 10] #ENDIF HIGH Enable Check_List: FOR tagNum = 1 TO LastTag FOR idx = ...