Code for Adafruit's Circuit Playground Developers Board which gives it 8 capacitive touch connections like a Makey-Makey has.
The +/- switch turns the functions on and off.
The default connections and their keyboard / mouse outputs are:
Up Arrow Key: pin 10
Down Arrow Key: pin 9
Left Arrow Key: pin 6
Right Arrow Key: pin 12
Space Bar: pin 1
"a" key: pin 0
"b" key: pin 2
"c" key: pin 3
Pressing the right button will send through the keyboard: "l###" followed by carriage return where ### is a number between 0-1024 signifying the light level at the eyeball on the Circuit Playground.
Pressing the left button will send through the keyboard: "t##" followed by carriage return where ## is a temperature F (unless you uncomment the specified line to switch it to C).
Both of these functions are formatted for easy use with Scratch's Question block. My demo project in Scratch is at: https://scratch.mit.edu/projects/156626704/