Step 1. Get a Flic Button
The Flic is a bluetooth smart button that uses your phone to do whatever you program it to (like call an Uber! Uber shoes, anyone?). I chose to use this instead of, say, hacking an Amazon Dash button, because the Flic uses your phone to look for presses instead of a Raspberry Pi.
The Flic also has the benefit of being about the size of a quarter - the perfect size for a shoe tongue!
You can buy a Flic on Amazon for about $34. Buying a pack of 3 is cheaper (one shoe for pizza, one shoe for Uber?!).
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