Lindsey won't be making it to the meet-up tonight. Have fun tonight!
Part 1. Constructing the Sensor
The sensor itself is really easy and quick to make. To make the sensor work, you will need access to an Arduino, a breadboard and some basic electronics components.
To make the sensor into an ornament, simply run some ribbon or string through the metal loop at the top.
Part 2. Building the Circuit
This is a simple circuit that requires a few basic electronics components:
Use the diagrams below to guide you in building the circuit.
Part 3. Programming the Arduino & Testing!
This is assuming you already have the Arduino software.
1) Download the CapacitiveSense (CapSense) Library here. Follow the directions to make sure it installs correctly.
2) Create a new sketch. Copy and paste the code below into your sketch. Verify and upload to your Arduino.
(Note: The most common error we had was getting the name of the library wrong, but hopefully you won't have that problem.)
3) Clip your sensor to the alligator clip and test it out!