RFID Multiple Keyfob 6 in 1
This will be a short review, because it is almost like simply reviewing an access card.
I have seen these for a while, and thought how awesome one of these would be IF they could be implanted. (they obviously cant, but it would be awesome)
I dont REALLY have a use for this, BUT It may come in handy for some testing…time will tell
On this specific 6 button version, You have 3 options
I chose the 3 x T5577 3X UID option
If you are curious how it works, it is a very simple but effective design, and “a picture paints a thousand words”
Quick explanation if you are unsure:-
1 x LF antenna
1 x HF antenna
1 x Momentary button for each chip
- Press button, and that chip connects to the appropriate antenna and can be read
TESTING
The PM3 would be the “normal” universal Reading distance measuriserer, but I chose to use the Flipper
T5577 =30mm
IC =30mm
I’ve chucked mine in my Bag o' Bits
PROs
• Small/ very portable
• Robust
• 6 “card” buttons
• Very good range
• Very capable
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multiple options to choose from
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“Does what it says on the tin”
CONs
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Cannot be implanted
-
Ugly design
-
Not super ergonomic to use (still useable)
“HACKS”
I have considered getting a 6x UID option and removing upto 5 of the UUD Chips and replacing with 5 different HF chips (Or 2 of the 3 on the 3x3 version)
I would need to do a further breakdown to see the trace below the current chips to know if it is (easily) possible,
PRICE
~ USD$8
SUMMARY:
Cheap, small, lightweight, robust, multipurpose, does exactly what it says and as you would expect of it
LINKS AND RESOURCES
Rating by the community 
PLEASE ONLY VOTE IF YOU HAVE ONE OR HAVE USED ONE
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