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7400 competition entry: Passive RFID Tag from 7400 discrete logic

Posted on Friday, October 19th, 2012 in 7400 contest, contest by DP

Check out Bertho’s RF74xxID, a multifunction passive 7400 RFID tag for the Open 7400 Logic Competition.

RF74xxID: A passive RFID tag built entirely with 74xx logic chips. The tag supports the setting of any ID by means of DIP switches, can send data using two encoding schemes and has configurable baud rate.
The tag is powered by the EM field from the RFID reader. No batteries are needed.

Check out the video below.

Build something that uses or abuses a logic chip and get amazing boards, tools, and other swag. The Open 7400 Logic Competition promotes awareness of the basic building blocks of modern circuits. Devious geeks ignited the computer revolution with discrete logic computers, what can you do? Details and entry form here.

Via the contact form.

This entry was posted on Friday, October 19th, 2012 at 10:00 pm and is filed under 7400 contest, contest. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

3 Responses to “7400 competition entry: Passive RFID Tag from 7400 discrete logic”

  1. Brilliant design and what an attractive case:)

    Where’s the add to shopping cart button?

  2. Bertho says:

    I’m working on the new version. A small test of 10 new PCBs is on order. You can send me an email if you fancy one.

    I’ll post the complete details and a better description on how to order one once I have verified the new version. For the time being, an email should suffice.


    Greetings Bertho

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