What is Reddit's opinion of NFC TagWriter by NXP?

Yes, https://play.google.com/store/apps/details?id=com.nxp.nfc.tagwriter will do it.

It is possible to permanently write protect a card, then nothing will write to it.

Idk man, that depends what software you use with your ACR122u reader. I use NXP Tagwriter app on Android, which does allow writing to multiple cards in sequence

Do you have an Android phone? If not, does a coworker?

You can download free NFC software that should be able to read/write a small amount of information to the implantable chip. (The maker of the chip you purchased may have a recommended application.)

I've used NFC TagWriter by NXP with success in the past.

Printed the wallet from the Dogecoin Core, folded it up. The hidden flap was just mounted to the NFC card with high density packing tape, along the crease. Ran more tape over the top of it to seal it to the card. trimmed it up the the utility knife (shown in the pic) then used NFC Tag Writer to write and lock out the card.

I know it's kinda hard to follow but if you were following along with my description, it would make much more sense. :)

That's the raw hex data you can use something like [NFC TagWriter by NXP[(https://play.google.com/store/apps/details?id=com.nxp.nfc.tagwriter) to read files in a understandable way but that card does look empty they probably use the id which is unless you rewrote they card by accident

For Bluetooth connections, I've used the app NXP TagWriter to automatically connect your phone to the BT device you want. After the tag is programmed anyone can use it.

That may not fully address your issue though.

If I understand the problem you're describing, you have two pair of ear buds and you and your partner have previously connected to both pairs. Now your phone doesn't connect to the one you mean to use.

If that's the case, the issue probably lies with how your phone handles Bluetooth connections. In general, they'll try to connect to the most recent BT device they used, which may or may not be the ear buds you want to use.

To get around this, you typically have to make your phone "forget" the BT connection you don't want.

For ear buds, I'd suggest that you each select a pair that will be yours and the other person shouldn't use them. Then, both of you should forget the BT connection for both pairs of buds and reconnect only the one you'll use. This will keep you from accidentally commenting to the wrong one.

I hope that's of help.

I recommend TagWriter by NXP (they make NFC chips).

Anything you encode using NDEF will be readable without an app on Android and the latest versions of iOS.

I'm using this app to write NFC tags. I would not be able to give you specs of the tag used but worked with at least three different types as I recall.

https://play.google.com/store/apps/details?id=com.nxp.nfc.tagwriter

It connects via Bluetooth, so I can ring my keys within approximately 30 feet. Helps if they fall under the couch or something. Also has crowd locate so if another trackr user's phone comes within Bluetooth range I get a notification with gps coordinates.

The NFC tags are from Amazon. All you need is a relatively modern Android phone that has NFC, and an app like NXP TagWriter to read/write data on the tags.

From there you can export a contact card (stored as a .vcf) and write it directly to the tag, provided the tag has enough storage space.

When scanned, the phone automatically imports the contact to the chosen account.

I didn't program the phone to open a link when it saw the ID. I programmed it into the NFC chip. It worked on multiple phones that did not have the app installed.

As far as I can tell, the rewards system does the first thing you mention. There is a program on their POS machine that reads the ID and find the account associated with it. It doesn't actually have anything stored on the card. This is the card I'm talking about. And I programmed it using this app

https://play.google.com/store/apps/details?id=com.nxp.nfc.tagwriter&hl=en

They are calling it an NFC writer, but if you look down further it will read "third party NFC-enabled contactless IC products like MIFARE Ultralight, MIFARE Classic, MIFARE DESFire, NTAG 21x, NTAG I2C, ICODE SLI and many others."

I don't really understand the relationship between the term RFID and NFC, but this reads many things that I would call RFID.

If your phone has NFC perhaps this will work for you? Link

If that doesn't work what I searched for is NFC Wifi Tag because I think that's what you are looking for. I know on my Note 4 running lollipop I can make a tag for the WiFi by just long pressing the WiFi I want to share and that will be an option. Perhaps you should try that and then the app.

https://play.google.com/store/apps/details?id=com.nxp.nfc.tagwriter

Use this application to write your public key onto the tag.

Download this: https://play.google.com/store/apps/details?id=com.nxp.nfc.tagwriter

I've used it for connect to WiFi and it works like a champ.

I've found NXP's TagWriter to be good for NFC data manipulation.

https://play.google.com/store/apps/details?id=com.nxp.nfc.tagwriter