The NTAG I2C Test Card is very nice! Two questions:
Which NTAG I2C Plus IC do you use?
NT3H2111 - 1K Memory
NT3H2211 - 2K Memory
Do you offer a cable that connects your card’s Breakout pin header to Connected Tag Explorer Board (to get a USB) included with NXP NTAG I2C plus Connected Tag Explorer Kit?
Thanks,
Vince
Thanks =)
NT3H2211 with 2k memory, just like the xSIID
No, but you should have an easy time buying Male-Male jumper wires or honestly even 22AWG solid core wire and connecting it up if you want.
The mating board in that kit has a host microcontroller and a bunch of peripherals, which is why it has access to USB power. I don’t think the energy harvesting capabilities of one NTI2C+ chip is enough to power the LCD, at least not with the backlight. The intended use case is for the NDEF memory on the NTI2C+ to act as NFC editable storage for a host MCU to access over I2C. Basically for embedded applications where you want a user to have limited wireless access to configure the device.
What are you planning to do with it?
Thanks for the information! My company makes BLE connected NFC readers.
https://store.socketmobile.com/products/durascan-d600-contactless-reader-writer
I am supporting a Developer using the NT3H2211 with 2k memory for a NFC meter application. So your Test Card is handy, I sometimes need to see the I2C side, so I use the NXP Connected Tags Explorer Board with NXP’s Peek and Poke Windows Application.
https://www.nxp.com/downloads/en/apps/SW3652.zip
Vince
Nice. Well I do contract development work and consultation if you want any direct assistance. Just DM and I’ll send you my company information. Otherwise feel free to ask any questions you have or share updates about the product here.
I received the NTAG I2C Test Card. None of my NFC Applications on Android or iOS can read the card and the Field Detection LED does not illuminate.
Is there a procedure I must follow to enable the NFC on the card?
Vince
Do you have access to any other readers
ACR122u or KBR1
An android ( What model is you iPhone? )
an access door reader?
It should be illuminating
I don’t have one myself, But I think @satur9 designed it, so he would probably be best to answer your questions…or others with the card, Off the top of my head @Devilclarke
That’s about all the help I can be sorry
The LED should light up without any config try a few different orientations and reader. Phones may or may not have enough oomh to light the LED (especially if there low power searching)
As for not showing up when scanned its possible you need to write the ndef header thing (technical term) bur let’s see if we can get the lights on first.
Thanks both for comments!
I use a Samsung Galaxy S7, iPhone 8, and iPhone XS. I have many USB/BLE readers, including the ACS ACR1255 shown in the photo. The NTAG I2C Test Card is not discovered and the LED does not illuminate, like the red card shown in the second photo.
Vince
FYI, The “Uploading: IMG_7024.jpg…” between images
Is from hitting reply before it managed to load the image
We sending a replacement
Thank you. I received the replacement and all is good. I see not what happened.
– The first board (which was not functional) is the bottom card in the photo. You can see there is no NTAG I2C IC
I also connected the board to NXP’s Peek and Poke Utility (to access the I2C side). Even with my messy wiring, the PC connwcts to the port.
Very nice. I look forward to seeing what you make after you learn what you wanted. If you would like any help feel free to reach out
We make a credit-card size Data Acquisition device which transfers data over Bluetooth to our iOS or Android App running on a phone which can be optionally attached to the phone. The device has a PIC Microcontroller with an I2C interface and is powered by a 700 mAh Li-ion battery.
We want to replace or supplement the device’s Power Button so the device can be powered-on with an NFC tap to the phone that is running our App. I want to prototype this functionality using your NTAG I2C Test Card.
Do you have any reference designs showing how to do this?
As I recall correctly, the NTAG I2C just passes whatever it’s sent to the I2C bus when you prefix it with the proper command. You can read more in the datasheet.
Thats a cool idea
If you mange to get it done, keep us updated, I’ll throw it in our RFID in Unusual places thread
It’s also a nice looking and good sized reader
You might also want to consider replacing the USB micro with a Type C…Personally I won’t buy new products with anything but Type C.
same, ive gone as far as replacing the micro with C anyways.
Thanks for the comments. Please advise if this “1X6 Pin Single Row Female 2.54mm Breakable Pin Header Right Angle Connector Strip bending” will fit on your # NTAG I2C Test Card.
https://mou.sr/3Fd8Ndo
Yes, based on the data sheet that header is ideal. It’s 6 position, 2.54mm pitch, and each pin is 0.62mm OD which is plenty of headroom for the 0.85mm PTH drill diameter on the NTI2C+ Test Card.
I do not have a reference design, but I can explain. Details are on pg 34 of the datasheet.
The pin on the Test Card labeled “FD” is the field detect pin. It’s active low and has some limited configuration options in the registers. When the NFC field is present, it will pull that pin down, and you can use that to signal the microcontroller to wake up via an interrupt pin.
Thanks! This exaplanation helps.
