RFID - Revision history

Wolf: Move Earl-related content to that page and link to Shed

2021-10-15T19:01:45Z

Move Earl-related content to that page and link to Shed

← Older revision		Revision as of 12:01, 15 October 2021
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	Noisebridge uses RFID for some access control systems. As of this revision, the whole system is named [[~~Earl]~~]~~. There is a software repository on the [https://github.com/noisebridge/rfid-access-control noisebridge github~~].		Noisebridge uses RFID for some access control systems. As of this revision, the whole system is named [[Shed]]. (The one at [[2169 Mission]] was named [[Earl]].)

	The ~~system is based on RFID-RC522 devices using tags that work~~ at ~~13.56Mhz. This is compatible with what we call~~ [~~https://en.wikipedia.org/wiki/NFC NFC~~]

	~~They kind of look like this, on a high level.~~

	[[~~Image:rfid-notes-by-lee.jpg\| thumb \| 720px~~]]

2017-02-20T05:29:09Z

← Older revision		Revision as of 22:29, 19 February 2017
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	Noisebridge uses RFID for some access control systems. There is a software repository on the [https://github.com/noisebridge/rfid-access-control noisebridge github].		Noisebridge uses RFID for some access control systems. As of this revision, the whole system is named [[Earl]]. There is a software repository on the [https://github.com/noisebridge/rfid-access-control noisebridge github].

	The system is based on RFID-RC522 devices using tags that work at 13.56Mhz. This is compatible with what we call [https://en.wikipedia.org/wiki/NFC NFC]		The system is based on RFID-RC522 devices using tags that work at 13.56Mhz. This is compatible with what we call [https://en.wikipedia.org/wiki/NFC NFC]

2017-02-20T05:28:44Z

notez

← Older revision		Revision as of 22:28, 19 February 2017
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	Noisebridge uses RFID for some access control systems [https://github.com/noisebridge/rfid-access-control].		Noisebridge uses RFID for some access control systems. There is a software repository on the [https://github.com/noisebridge/rfid-access-control noisebridge github].

	The system is based on RFID-RC522 devices using tags that work at 13.56Mhz.		The system is based on RFID-RC522 devices using tags that work at 13.56Mhz. This is compatible with what we call [https://en.wikipedia.org/wiki/NFC NFC]

	They kind of look like this, on a high level.		They kind of look like this, on a high level.

	[[Image:rfid-notes-by-lee.jpg\| thumb \| 720px]]		[[Image:rfid-notes-by-lee.jpg\| thumb \| 720px]]

2017-02-20T05:16:02Z

← Older revision		Revision as of 22:16, 19 February 2017
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	They kind of look like this, on a high level.		They kind of look like this, on a high level.

	[[Image:rfid-notes-by-lee.jpg]]		[[Image:rfid-notes-by-lee.jpg\| thumb \| 720px]]

2017-02-20T05:15:30Z

pix

← Older revision		Revision as of 22:15, 19 February 2017
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	They kind of look like this, on a high level.		They kind of look like this, on a high level.

	[[Image:rfid-~~access~~-~~system~~.jpg]]		[[Image:rfid-notes-by-lee.jpg]]

2017-02-20T05:07:36Z

← Older revision		Revision as of 22:07, 19 February 2017
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	The system is based on RFID-RC522 devices using tags that work at 13.56Mhz.		The system is based on RFID-RC522 devices using tags that work at 13.56Mhz.

			They kind of look like this, on a high level.

			[[Image:rfid-access-system.jpg]]

2017-01-26T02:41:26Z

blank out of date info and add simple edit to reflect current state of the rfid system

2013-07-31T15:57:17Z

← Older revision		Revision as of 08:57, 31 July 2013
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	* [http://www.sirit.com/Tech_Support_Downloads/CHUMP_Prot_Ref_Gd_v7.0 Chump Reference Guide]		* [http://www.sirit.com/Tech_Support_Downloads/CHUMP_Prot_Ref_Gd_v7.0 Chump Reference Guide]
	* [http://www.sirit.com/Tech_Support_Downloads/MP9311_Users_Guide_V2.0.pdf User Guide] - Though for a different model, pg 52-56 provide some good examples on writing to gen2 tags		* [http://www.sirit.com/Tech_Support_Downloads/MP9311_Users_Guide_V2.0.pdf User Guide] - Though for a different model, pg 52-56 provide some good examples on writing to gen2 tags
	* [https://github.com/danasf/noise-~~rfid~~ code] - script to read/write to a serial port, to filter out duplicate output]		* [https://github.com/danasf/noise- code] - script to read/write to a serial port, to filter out duplicate output]

	Some example commands (note: wa command will write to any unlocked tag in the field):		Some example commands (note: wa command will write to any unlocked tag in the field):

2013-07-30T04:26:13Z

Setting Tag EPCs

← Older revision		Revision as of 21:26, 29 July 2013
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	== Setting Tag EPCs ==		== Setting Tag EPCs ==
	[[Image:Rfidmem.jpg\|thumb\|right\|Memory map for cheap NXP RFID tags. We ~~need to~~ change the EPC in bank 01]]		[[Image:Rfidmem.jpg\|thumb\|right\|Memory map for cheap NXP RFID tags. We can change the EPC in bank 01. We want to read the TID in bank 02]]

	GEN2 (aka ISO 18000-6C) tags contain a unique, factory set tag ID (TID) and a user configurable EPC. Per the datasheet the EPC is the same for all our tags until configured otherwise		GEN2 (aka ISO 18000-6C) tags contain a unique, factory set tag ID (TID) and a user configurable EPC. Per the datasheet the EPC is the same for all our tags until configured otherwise

2013-07-30T04:25:29Z

Changing Registers

← Older revision		Revision as of 21:25, 29 July 2013
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	=== Changing Registers ===		=== Changing Registers ===
			[[Image:P2Iregister.jpg\|thumb\|right\|Example bits of the P2I register, which controls the identification layer for gen2 tags (source: CHUMP guide)]]
	This reader has a number of config registers we can modify. Use the following CHUMP command to read the current registers:		This reader has a number of config registers we can modify. Use the following CHUMP command to read the current registers: