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MagLED Interactive Card

MagLED card z-profile — two bonded PCBs no thicker than a normal business card

A zero-profile business card built from two PCBs bonded together, designed with kicad-sandwiches. It carries 8 RGB LEDs, each coupled to a Hall sensor, so it responds to magnetic fields. The MagLED card has a soldered-on Arduino Nano Every module that has been flipped and recessed to achieve a zero-profile embedded microcontroller.