NFC TI TRF7970A breakout board V1.1 update

Posted on Thursday, May 10th, 2012 in RFID by DP

Benjamin made a small update on his NFC TI TRF7970A breakout board. The board is designed to provide you access to RFID and similar RF protocols. Benjamin has 15 boards he is willing to giveaway, so contact him on his blog if you’re interested.

It is just a little update on the new board TI TRF7970A Breakout Board v1.1 I have built, I have ordered 20 PCB, it is a minor update/clean-up of the board to be easier to use (especially with SPI+SS mode which can be now selected by using simple Short Circuit Block Cap).

Via the forum.

This entry was posted on Thursday, May 10th, 2012 at 1:00 pm and is filed under RFID. 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.

8 Responses to “NFC TI TRF7970A breakout board V1.1 update”

  1. Behdad says:

    If it is open source , I would like to buy some of your boards that work with STM32F407 discovery board. you can contact me by my email. b.khoshbin at gmail


  2. Josh Wyatt says:

    Nice work! – if you want any more ideas for TRF based boards in Eagle let me know – i’ve got several to share – email is:

  3. MAHANTESH says:

    hey, i want to interface NFC module(ACR122U) with arduino is possible. If it is, then can you please suggest me how to interface and the code for the same …..

    • Roger says:

      Finally it works??

      I’m trying to control TRF7970A from arduino and it’s really hard! Can anybody have experience with that chip controlled with SPI?

  4. josh wyatt says:

    these guys have a module on a board setup for Arduino, too. (based on TRF7970A)

  5. bvernoux says:

    Just for information,

    HydraBus and HydraNFC boards are available online:

    HydraFW official firmware 0.1Beta released for HydraBus / HydraNFC It is available on github:

    Schematics, board document are also available on github:

    Best Regards
    Benjamin Vernoux

Leave a Reply

Notify me of followup comments via e-mail. You can also subscribe without commenting.

Recent Comments

  • Pekka Akselin: This is ridiculous!? :-) We are back at 256(!) byte EPROMs that needed multiple, a handful, of voltages to run! :-(
  • KH: Let's try a back-of-envelope calc balancing energies. From MCP1700 datasheet, there are graphs for a 200mA load step. Estimate the energy shortfall as 12uJ. Say...
  • Daniel: It's been a week and my comment is still awaiting moderation. Apparently the CIA doesn't want their involvement known?
  • KH: Agree, so okay, I guess he must have learned from somewhere. 100nF and 1000uF is so far apart, that was jarring; it's more magic incantation...
  • Max: I have a suspicion the hefty electrolytic cap might be some sort of cargo cult carry-over from other RF-based projects - for instance, I've seen...