DIY Reaction Button

https://www.youtube.com/watch?v=JdegFQKrjtM

"Physical" Like Button
Inspired by Facebook "Reactions". You press the button, and the number count gets displayed on the LED screen.

Looks like a novelty product, but this can be used for all sorts of useful stuff like keeping track of attendees at an event, keep track of a score for a game or anything else that needs a tally counter.

Full Tutorial:
https://learn.adafruit.com/trinket-react-counter/

Download Fusion 360 Source:
http://a360.co/21pJQNg