They emit *and* they detect, LEDs are the real MVP #adafruit #collinslabnotes

Sense light with Adafruit:

https://www.adafruit.com/category/61

-----------------------------------------

LIVE CHAT IS HERE! http://adafru.it/discord

Adafruit on Instagram: https://www.instagram.com/adafruit

Subscribe to Adafruit on YouTube: http://adafru.it/subscribe

New tutorials on the Adafruit Learning System: http://learn.adafruit.com/

-----------------------------------------