Raspberry Pi Pico Powered RFID Lighting

RFID is a wonderful technology. With it we can wirelessly trigger events using cards and key fobs that need no power, and simply react when placed near a reader. Sew a fob into your jacket and trigger anything to happen!

RFID readers need very little processing power, which means the $4 Raspberry Pi Pico is the ideal way to tinker with this project changing technology. In this project we shall use different RFID cards to trigger effects on a series of NeoPixel LEDs. One card will cause a rainbow color change while another triggers random colors in random positions along the chain of LEDs. All the user has to do is show the card to the reader, and it triggers the event.

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