r/NFC

Image 1 — I redesigned my tiny e-ink keychain after Reddit feedback
Image 2 — I redesigned my tiny e-ink keychain after Reddit feedback
Image 3 — I redesigned my tiny e-ink keychain after Reddit feedback
▲ 1.0k r/NFC+1 crossposts

I redesigned my tiny e-ink keychain after Reddit feedback

Hi folks,

A few months ago I shared a small message-bubble keychain with a 1.54" e-ink display, and got a ton of helpful feedback on the design. Over the past month I’ve been redesigning the enclosure, and this is the latest version.

The new case is 3D printed in translucent PETG, so you can still see the PCB through the shell. The display sits in a recessed cutout, and I’m using a UV-glued acrylic front panel to keep it protected while staying thin. Total thickness is around 4 mm, which feels surprisingly compact while still sturdy enough for everyday carry.

I also added a corner loop so you can attach key rings, lanyards, charms, etc.

One feature I’m especially happy with: the e-ink tag also includes NFC functionality, so you can use it for iPhone automations, shortcuts, contact cards, or other NFC-triggered actions.

A lot of people asked about the app on my last post too:

iPhone app is already live on the App Store, Android version currently installs via APK (Play Store release still pending). So far, any NFC-capable phone I’ve tested works fine

Current price is $29 USD including a free lanyard. Production turnaround is about 3–5 days and it ships from the US. check out the website:

https://shellrus.com/products/nfc-powered-e-ink-tag-with-1-54-4-color-display

Would love to hear what you think about the updated design — especially the enclosure/material choices.

u/miye233 — 4 days ago
▲ 239 r/NFC+3 crossposts

Hi everyone!

We're the team behind NFC Tools, the app you might already have on your phone (Android, iOS) or computer (Windows, Linux, MacOS).

We've been Flipper enthusiasts for a long time, so it was only a matter of time before we released a version for the Flipper Zero.

I'm glad to announce that it's done.

Detailed features and source code: https://github.com/wakdev/nfctools-fz/

A pre-built version for manual installation is available on GitHub or our website.

We're also working on getting it published in the official Flipper Zero app catalog. Submission is in progress, we'll let you know once it's live.

Feedback, bugs and feature requests are very welcome.
Drop them here or open an issue on our GitHub.

u/wakdev — 7 days ago
▲ 12 r/NFC

I didn’t realize NFC had become this practical for everyday businesses

Most of the time when people talk about NFC technology, it’s usually around contactless payments or digital business cards. I honestly never thought much about it beyond that.

But recently I walked into a small café and noticed a little stand near the register asking customers to “Tap here to leave a review.” I thought it was interesting because customers didn’t need to download anything or even search the business online manually.

I can see why businesses are starting to use them because most customers probably won’t take the extra effort later at home, even if they had a great experience. Making the process immediate seems more realistic.

I’m curious whether NFC engagement rates are actually better than normal QR systems or if both perform about the same in real-world situations.

reddit.com
u/N1boost — 4 days ago
▲ 6 r/NFC

Do people actually prefer NFC over QR codes now?

I’ve been testing different NFC setups recently for things like Google reviews, WiFi sharing and social links.

One thing I noticed is that people seem much more likely to tap an NFC tag than scan a QR code, especially in restaurants or at checkout counters.

The interaction just feels faster and more natural.

Curious if others here noticed the same thing or tested similar setups?

reddit.com
u/Taggytech — 5 days ago
▲ 31 r/NFC+1 crossposts

Hey everyone, I'm trying to clone my campus access card to my Android phone . I scanned it with NFC Tools, and it’s a Mifare Ultralight EV1.

​I've blocked out my Serial Number for privacy, but I'm looking for a way to have my phone emulate this 7-byte UID.

Is there an app or method that actually works for this(without rooting my phone) or buying extra hardware .

Thanks!

u/CheekApprehensive701 — 12 days ago
▲ 3 r/NFC

Issue with NFC

Hii , I got a NFC tag but it’s not working. I’m trying to use. NFC tops app write to open an Instagram profile,it’s not detect the NFC, however the shortcut app is detect it and I can write on, so what should I do about it?

reddit.com
u/SGreddarkknight — 4 days ago
▲ 2 r/NFC

Hi everybody, I’d like to make a basic phone app that acts as a plant journal for my garden. I’d like to put an NFC tag / QR code on my wooden plant stakes (labels), and be able to tap the tag every time I garden to log the activity from that day & see historical logs. Examples of a log entry could include photos and text, date planted, variety, expected date to harvest, etc. I’m not sure the best way to go about building this - any advice is much appreciated!

reddit.com
u/LoamAndOrder — 9 days ago