Build a custom NeoPixel LED matrix in the shape of a heart! Trigger colors and animations with BLE using the ItsyBitsy nRF52840. Use Black LED acrylic and 3D printed case to make it wearable!Learn Guidehttps://learn.adafruit.com/neopixel-led-heart-necklace/ItsyBitsy nRF52840https://www.adafruit.com/product/4481Mini Skinny NeoPixel Striphttps://www.adafruit.com/product/2970Lipo Backpackhttps://www.adafruit.com/product/2124500mAh Batteryhttps://www.adafruit.com/product/1578Slide Switchhttps://www.adafruit.com/product/80510-wire ribbon cablehttps://www.adafruit.com/product/3890Black LED Acrylichttps://www.tapplastics.com/product/plastics/cut_to_size_plastic/black_led_sheet/668Project inspired by Charlyn Gondahttps://charlyn.codes/magic-acrylic-stays-opaque-until-light-shines-through/-----------------------------------------LIVE CHAT IS HERE! http://adafru.it/discordAdafruit on Instagram: https://www.instagram.com/adafruitSubscribe to Adafruit on YouTube: http://adafru.it/subscribeNew tutorials on the Adafruit Learning System: http://learn.adafruit.com/-----------------------------------------