nfc reader

thingiverse

Nfc reader using a ```RC522``` and an ```ESP32 D1 mini``` with a couple of neopixel's ```ws2812```. Software I'm using is ```esphome```. Example code. One light will pulsate while detecting a tag. Another light will shine with a different color for a different tag. ```yaml esphome: name: nfc-scanner platform: ESP32 board: wemos_d1_mini32 platformio_options: lib_deps: NeoPixelBus@2.6.1 wifi: ssid: "****" password: "****" # Enable Home Assistant API api: ota: web_server: port: 80 spi: #sda: 5 # This pin is not used in the configuration but IS connected. Seems to # be needed clk_pin: 14 mosi_pin: 13 miso_pin: 12 rc522_spi: cs_pin: GPIO15 reset_pin: 4 on_tag: then: - homeassistant.tag_scanned: !lambda 'return x;' - light.turn_on: id: partition_1 brightness: 50% red: 50% green: 70% blue: 100% - delay: 0.5s - light.turn_off: partition_1 binary_sensor: - platform: rc522 uid: D9-73-6D-C2 name: "RC522 RFID Tag" on_press: then: - light.turn_on: id: partition_2 brightness: 70% red: 0% green: 0% blue: 100% on_release: then: - light.turn_off: partition_2 - platform: rc522 uid: B3-A5-33-40 name: "RC522 RFID card" on_press: then: - light.turn_on: id: partition_2 brightness: 70% red: 100% green: 100% blue: 100% on_release: then: - light.turn_off: partition_2 light: - platform: neopixelbus #variant: WS2812 num_leds: 2 pin: GPIO16 name: "RGB strip" id: rgb_led default_transition_length: 0s - platform: partition name: "Partition Light 1" id: partition_1 segments: - id: rgb_led from: 0 to: 0 - platform: partition name: "Partition Light 2" id: partition_2 segments: - id: rgb_led from: 1 to: 1 ``` ```RC522``` and ```ESP32``` are held in place with double sided tape. The RC522 could also just be snapped into place. To hold the two neopixels I've used hot glue.