It's a Morse code receiver base on processing the light signals.
Project showcase by Alireza Karkon
Using an optical flow sensor to turn gestures in the air into mouse movements.
Project tutorial by Kristoffer Richardsson and Arnaud Taffanel
Grab an Arduino and turn it into a Power Point pointer using an IR sensor and your TV remote.
Project tutorial by Hugo Gomes
A connected universal remote.
Project tutorial by BuddyC
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