BF4L (2024)
PCB, magnet, buzzer, neopixels, DF Robot Beetle ESP32-C6, reed switch, battery, wires

BF4L (2024), or ‘Best Friends 4 Lyfe, is a friendship circuit board. Two friends split the bone in half. Whenever they reunite they hold the bone halves together, and the magnet on one half will activate the reed switch on the other half, causing the bone to light up and play sound.