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# GitHub - i12bp8/TagTinker: Flipper Zero app for ESL research using IR. All based on https://www.furrtek.org/?a=esl

**[Hacker News](https://daily.dev/sources/hn)** · 5 min read · 0 upvotes · 0 comments

## Summary

TagTinker is a Flipper Zero application for researching infrared electronic shelf-label (ESL) protocols. It enables protocol observation, signal analysis, and controlled display experiments on authorized hardware. The app supports text/image display experiments, includes a local web-based image preparation utility, and is built on furrtek's public ESL reverse-engineering research. It is strictly scoped to home-lab and authorized research use, with explicit warnings against use in retail or commercial environments.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://github.com/i12bp8/TagTinker>

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---

Tags: [#c](https://daily.dev/tags/c), [#reverse-engineering](https://daily.dev/tags/reverse-engineering)

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