Vivian and Samantha built a functioning CNC machine that can draw images from files uploaded to it. The machine doesn't work perfectly, but it can draw some images well.
Vivian and Samantha built the website for this year's hackathon. It contains important information about the event and donating, as well as a sponsors page. We also built our own signup page so the website doesn't simply link to a google form.
Vivian and Jenna rebuilt a remote controlled car with an Arduino and an Arduino motor shield. Their car can be controlled by an app (video on the left) and can switch to autonomous mode with a button (video on the right).
Vivian and Samantha built on their previous knowledge of the Amazon Echo to create a functional switch connected to Alexa using a wifi module.
Samantha and Vivian made an Alexa skill to be used for the Amazon Echo that allows tweeting with a voice command.
Samantha and Vivian learned the basics of Python and Raspberry Pi, and created a functioning twitter bot that will retweet tweets with the #computerscience.
Jenna and Vivian learned how to solder, and as shown above created a fully functioning circuit board with LEDs and a speaker.
Jenna and Vivian learned the basics of Arduino and circuits in this learning module. In the picture and video above, they controlled three LEDs using a photoresistor to sense when it was dark.