The tag reader is a simple to build/use NFC tag reader, specially created for Home Assistant. It is using a Wemos D1 and the PN532 NFC module. The firmware is built using ESPhome.
I am selling a pre-built version, a DIY version (assembly required) or just the case (use with own components). Check it out on my website.
To build your own tag reader, you need the following components:
The 3D models for the case are here.
There are not too many components to connect, but it does require soldering. You will need the following:
- Solder
- Soldering iron with a fairly thin tip
- About 40cm of thin wire, in, preferably, at least 6 different colors
To flash the reader firmware to your D1 Mini you point ESPHome at tagreader.yaml. If you're new to ESPHome, we recommend that you use the ESPHome Home Assistant add-on.
If the tag reader is unable to connect to a wifi network, it will start a WiFi access point with a captive portal to allow you to enter your WiFi credentials.
The tag reader will be automatically found by Home Assistant once the tag reader is connected to the same network. You can follow the instructions in the UI to set it up.
A custom component is required for Home Assistant at this time to link the tag reader to the tag integration in Home Assistant. Copy this file to <config>/custom_components/esphome_tag.py and add esphome_tag: to your configuration.yaml file.
Each tag that is scanned will result in a tag_scanned event in Home Assistant. You can manage your tags and automate them in the Home Assistant UI under config -> tags.
TODO