# adonno/tagreader

Simple to build/use NFC tag reader, specially created for Home Assistant

Repository: https://github.com/adonno/tagreader
Canonical: https://ross.abutalabs.com/products/tagreader
Homepage: https://adonno.com
Language: Shell
License: GPL-3.0
License Family: copyleft
Topics: tag-reader, esphome
Last push: 2026-04-27T19:21:23+00:00

## Health v2 (maintenance only)
Score: 58/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 79, release rhythm 8, longevity 100
- inputs: {"age_days": 2180, "days_push": 128, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1586, forks 211 (observed 2026-08-28T04:05:07.682954+00:00)

## What it is
A DIY NFC tag reader project built on an ESP8266 D1 Mini and PN532 module, with ESPHome firmware designed specifically for Home Assistant. It includes firmware configuration, schematics, and 3D-printable case files for building the device.

## Use cases
- read NFC tags to trigger Home Assistant automations
- build a DIY NFC tag scanner for smart home
- flash ESPHome firmware to a PN532 tag reader
- scan NFC tags for presence or scene control in Home Assistant
- build a tag reader with LED feedback and buzzer sounds

## When to choose
- you use Home Assistant and want NFC tag-based automations
- you want a cheap, well-documented DIY hardware project with 3D-printable case
- you already use ESPHome and want an integrated tag reader

## When to avoid
- you don't use Home Assistant or ESPHome
- you need a plug-and-play commercial NFC reader without soldering
- you need support for NFC platforms other than PN532

## Facets
- artifact type: application
- maturity: active
- function: embedded, iot, sdk
- domain: iot, self-hosted, hardware
- platform: embedded, iot, self-hosted
- tags: nfc, esphome, home-assistant, esp8266, pn532, diy-hardware, tag-reader, smart-home, automation

## Member repositories
- adonno/tagreader (main) score 58

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:07.682954+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:55:27.699999+00:00, confidence not recorded.
  - readme: https://github.com/adonno/tagreader (fetched 2026-08-28T04:05:07.682954+00:00, sha 602de0ad0a46)
  - homepage: https://adonno.com (fetched 2026-08-29T11:25:58.972694+00:00, sha e8fd6d08fa42)
  - site_page: https://adonno.com/about (fetched 2026-08-29T11:25:58.975442+00:00, sha b66e4895e9a7)
- Data as of 2026-08-30T08:39:29.467469+00:00.