RFID Music Player

Inspiration

Before starting this project I’d seen some awesome examples of this idea online over the years, but the ones that really excited me were the ones I’d seen using Home Assistant:

Goal

I wanted to acheive a similar thing to the examples above, where someone (mainly our daughter) could ‘swipe’ an RFID card over a reader to start playing some music. The only difference being unlike the projects above, we don’t use Sonos or Chromecasts at home: we use AirPlay and HomePods.

Components

Hardware

Software

Setup

ESPHome

Using ESPHome inside Home-Assistant, I created the following yaml and flashed it to an NodeMCU board.

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esphome:
  name: isabella_music
  platform: ESP8266
  board: nodemcuv2

wifi:
  ssid: !secret esphome_wifi_ssid
  password: !secret esphome_wifi_password
  fast_connect: true
  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Isabella Music Fallback Hotspot"
    password: "superSecurePassword"

captive_portal:

# Enable logging, Home-Assistant API and OTA updates
logger:
api:
ota:

# Tag Reader
spi:
  clk_pin: D0
  miso_pin: D1
  mosi_pin: D2

pn532:
  cs_pin: D3
  update_interval: 1s

  # What happens when a tag is read
  on_tag:
    then:
    - homeassistant.tag_scanned: !lambda 'return x;'

Home-Assistant

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rest_command: 
  bibble_music_nick_cope_bear:
    url: "http://192.168.1.5:3689/api/queue/items/add?uris=library:track:1&clear=true&playback=start"
    method: POST

Automation:

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alias: Tag A3-78-B9-03 is scanned
description: 'Tag Test'
trigger:
  - platform: tag
    tag_id: A3-78-B9-03
action:
  - service: rest_command.bibble_music_nick_cope_bear
mode: single