Summary Halloween! It's coming soon, and here at Zheng Labs our contribution to the ghouly neighhborhood decor is a Stranger Things Christmas light wall. There's a twist, though: anyone on the interwebs can control the message that appears on the wall by adding #InternetOfStrangerThings to a tweet. Give it a try! You can see the construction and operation of the Internet of Stranger Things wall over at the blog. The STL files here will help you print a Christmas light that's compatible with a 5mm LED, in case you want to give this a shot on our own. You can download the Arduino code and the serial communication python scripts you need here.