RFID

Contents 1 Intro 2 References 3 Parts list 3.1 Caps 3.1.1 Elect 3.1.2 Other 3.2 Resistors 3.3 Inductors 3.4 IC/Semis

Intro

This is where Toby is keeping track of his RFID investigations:

References

There's a good simple explanation how RFID works at the bottom of this page:

http://www.scienceprog.com/how-does-rfid-tag-technology-works/

More technical detail:

http://www.rfid-handbook.de/rfid/types_of_rfid.html

A 125khz reader reference design from Microchip:

http://ww1.microchip.com/downloads/en/DeviceDoc/51115F.pdf

Some guys from cornell who designed an RFID reader, handy links and design notes:

http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2006/cjr37/Website/index.htm

This looks _really_ interesting:

http://code.google.com/p/rfid-reader/wiki/HardwareDesign

James also pointed me towards this:

http://translate.google.com/translate?hl=en&sl=it&u=http://ficara.altervista.org/atmel_avr.php

Parts list

Caps

Elect

• 1 100 uF 25v
• 2 10 uF 16v

Other

• 2 22pF
• 1 1800pF
• 1 6200pF
• 6 1000pF
• 1 2200pF

Resistors

• 1 330
• 2 1m
• 1 82
• 1 12k
• 1 100
• 1 22k
• 1 470
• 2 10
• 1 390k
• 1 1.82k 1%
• 1 6.67k 1%
• 1 47.5k 1%
• 1 82.5k 1%

Inductors

• 1 1000 uH

IC/Semis

• 1 LM78L05A/T092
• 1 LM78M12/T092
• 1 74HC4060
• 1 4MHz xtal
• 2 1N4148
• 1 1N4936
• 2 2N2907
• 1 2N2222
• 2 TL084