MAKE THEM JUMP
On similar lines, the Haunted Jack in the Box also took shape as its maker went about building it.
Sean Hodgins tells us that he knew what he wanted to build, but “just didn’t know exactly how it was going to get there”. Sean used his background in automotive technology and AI to put a Raspberry Pi to good use and automatically cranks the popular prop making it a lot scarier.
First, Sean 3D-printed a shell for the contraption. He then paired a Raspberry Pi Camera Module to a Raspberry Pi 3 that runs a face-detection script to fire up a servo motor that cranks the music box and fires up Jack. You can find the Python script, along with the complete schematics for the project, in Sean’s Instructables page.
He warns us that anyone looking to replicate his build must be prepared to deal with a lot of wires strewn about the toy.
From one Halloween staple to another. Jack-O-Lanterns are the most common props you’ll find on Halloween, and while you can be creative with them, making them throw flames will definitely turn heads.
Markus Haack’s fire-breathing Jack-O-Lantern is IoT-enabled using MQTT. Before you begin, please understand this build is extremely dangerous because it deals with fire.
Please replicate this build after taking appropriate protections. We’d also like to repeat Markus’s warning: make sure you place the pumpkin at a safe location to not harm any person or property.
We’ll add our own warning: compressed flammable gasses and candles are a hazardous combination. Take responsibility for your own safety and only work with them if you’re confident of the safety of your approach.
The project basically involves triggering a can of WD-40 to spray its contents across a burning candle inside the pumpkin, which erupts outside giving the impression that the pumpkin is throwing flames. Needless to say, the first part of the project involves building the flamethrower.
Markus has built one atop a wooden platform. The key element of the platform is a servo-controlled piece of wire over the nozzle of the WD-40 can. The servos, in turn, are triggered by PIR motion sensors that detect when someone is approaching the prop. The project is simple to wire and is run via the minuscule ESP8266 board.