Difference between revisions of "Arduino/RFID-Reader"

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m (Bill Of Materials: - BOM almost complete! \o/)
m (BOM is basically met. Only a good coil needs to be made and the circuit triple-double-checked. Justa and I occasionally poke at it to see if we get anywhere with it.)
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{{Project
 
{{Project
 
|ProjectSkills=etching, soldering, tweaking
 
|ProjectSkills=etching, soldering, tweaking
|ProjectStatus=Getting parts
+
|ProjectStatus=Active
 
|ProjectNiche=Electronics
 
|ProjectNiche=Electronics
 
|ProjectPurpose=Use in other project
 
|ProjectPurpose=Use in other project

Revision as of 17:35, 15 March 2013

Projects
Participants
Skills etching, soldering, tweaking
Status Active
Niche Electronics
Purpose Use in other project

For use in Doorbot.

An rfid reader could be made using an arduino, a simple circuit, and winding our own antenna: DIYRFIDReader

The fobs we want to read are of the Proxkey IIII variant which operate at 125kHz: proxkeyIII_ds_en.pdf

Bill Of Materials

Resistors:

  • 8K (8k2 or 4k7+3k3)
  • 2 x 12K
  • 2 x 100K
  • 220K
  • 1M

Capacitors:

  • 2 x 1nF
  • 7nF (6.8)
  • 15nF
  • 2 x 100nF

Op-amps:

  • 2 x LM324N (LM324NE3 sampled)

Diodes:

  • 2 x 1N914

Coil:

  • 35 turns @ 3.25"D

Further Reading