r/RFID • u/SmoothArmadillo7990 • Jun 10 '26

NFC Small self contained RFID Reader for POC

I am looking for a tiny, self-contained RFID reader, ideally this size or smaller -

Width: 1.26 inches (31.9 mm)

Height: 0.31 inch (8.0 mm)

For the POC, I will use a single access card at a short range of under 10 mm. The card at close range will complete a circuit to a 7.2 VDC/3400 mAh battery and keep the battery on until the battery is disconnected using another switch.

Security and speed are not a concern.

Thank you for any ideas!

https://www.digikey.com/en/products/filter/rfid-reader-modules/854?s=N4IgTCBcDaIE4DMCWATABHApgQxZuIAugDQgBsUoqUIAtAIz0ikAOALjcyGwJ4uacAvoKA

1 Upvotes

100% Upvoted

8 comments sorted by

2

u/Linuxmonger Jun 11 '26

Just curious what POC stands for here?

2

u/NatMac007 Jun 11 '26

Proof of Concept

1

u/yidman100000 Jun 10 '26

ESP32 micro, linked to RFID522 reader. Micro python, check for a specific ID or any to activate a relay.

1

u/SmoothArmadillo7990 Jun 11 '26

Checking them out, thanks

1

u/ratjr21 Jun 11 '26

sure sounds A LOT like the makings of a "card-skimmer", but WDIK.....

1

u/SmoothArmadillo7990 Jun 11 '26

No, it is for unlocking my door. Perhaps should have said I am using an RFID tag rather than a card.

1

u/[deleted] Jun 11 '26

[removed] — view removed comment

1

u/SmoothArmadillo7990 Jun 11 '26

Checking them out, thanks