28440 Parallax Inc, 28440 Datasheet
28440
Specifications of 28440
Related parts for 28440
28440 Summary of contents
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... USB (#28340). Copyright © Parallax Inc. Web Site: www.parallax.com Forums: forums.parallax.com Sales: sales@parallax.com Technical: support@parallax.com 1kbit R 4,294,967,296 possible combinations) RFID Read/Write Module, Serial (#28440) Office: (916) 624-8333 Fax: (916) 624-8003 Sales: (888) 512-1024 Tech Support: (888) 997-8267 v1.0 6/29/2010 Page ...
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... Serial input from host. TTL-level interface, 9600 bps, 8 data bits, no parity, 1 stop bit. Serial output to host. TTL-level interface, 9600 bps, 8 data bits, no parity, 1 stop bit. System ground. Connect to power supply’s ground (GND) terminal. RFID Read/Write Module, Serial (#28440) v1.0 6/29/2010 Page ...
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... ASCII), followed by the desired single-byte command (in hexadecimal). Certain commands require additional data to be sent along with the command. A status/error byte and a varying number of data bytes will be returned depending on the command called. Copyright © Parallax Inc. RFID Read/Write Module, Serial (#28440) v1.0 6/29/2010 Page ...
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... SEROUT RFID_TX, Baud, ["!RW", RFID_SetPass, REP $00\4, $FE, $ED, $BE, $EF] SERIN RFID_RX, Baud, [err] Copyright © Parallax Inc. ' Get status byte ' Get status byte RFID Read/Write Module, Serial (#28440) ' Read tag's serial number ' Get status byte & data bytes ' Get status byte v1.0 6/29/2010 Page ...
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... Copyright © Parallax Inc. ' Get status byte ' Reset the tag ' Get status byte ' Read EM4100 unique serial # ' Get header, data, and footer RFID Read/Write Module, Serial (#28440) v1.0 6/29/2010 Page ...
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... Non-volatile EEPROM storage area for user data (116 bytes) Device serial number (unique, read-only) Device identification (used to identify tag family, read-only) ADDR_Password and can be changed by the user via the are modified directly by the RFID Read/Write Module and, in normal RFID Read/Write Module, Serial (#28440) Description v1.0 6/29/2010 Page ...
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... Copyright © Parallax Inc. 32 Test Conditions --- --- --- +4.5V <= V +5.5V CC +4.5V <= V +5. +4. +4. RFID Read/Write Module, Serial (#28440 4,294,967,296, possible values. It Specification Unit Min. Typ. Max. 4.5 5.0 5.5 --- 9.4 --- --- 108 200 --- --- 0.8 2.0 --- --- --- --- ...
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... The example program shown below is a simple system-level test to read the tag ID and write a block of data. This .bs2 program, along with a more comprehensive code example demonstrating the full capabilities of the RFID Read/Write Module, is available for download on the product page; search “28440” at www.parallax.com. Copyright © Parallax Inc. RFID Read/Write Module, Serial (#28440) v1.0 6/29/2010 Page ...
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... Reset tag (1) $0F ' Read unique ID from EM4102 read-only tag ' (for backwards compatibility with Parallax ' RFID Card Reader, #28140 and #28340) (12 Password (not readable Protection Word 2 ' Control Word 32 ' Device Serial Number 33 ' Device Identification RFID Read/Write Module, Serial (#28440) v1.0 6/29/2010 Page ...
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... If we get an error, keep trying ' until the read is successful ' Print data ' into address 4 (user EEPROM area) ' Wait for status byte ' If we get an error, keep trying ' until the write is successful RFID Read/Write Module, Serial (#28440) ' Read tag's serial number v1.0 6/29/2010 Page ...