Posts with «halloween projects» label

Creep out guests with an Arduino-controlled teddy bear

Halloween has become something of a hacker holiday, giving creative people the world over a chance to show off their spooky animatronic inventions outside without neighborhood scrutiny. This year, Instructables user “gocivici” created a display inspired by the doll in a rocking chair featured in the movie Anabelle, but decided to use an Arduino-infused teddy bear instead. 

The setup is simple but effective, using an Arduino Nano and solenoid to rock the chair. The bear’s head rotates using another Arduino board—an Uno this time—along with a second solenoid and 3D-printed assembly stuffed inside. Control is accomplished via a small wireless remote, though a motion sensor could also be employed.

Dad-daughter MechWarrior suit ready for trick-or-treating

The idea of a mechanized walking suit to carry you around seems like a great idea, but having a practical leg assembly for it is still a futuristic concept. As seen here however, if you’re still a kid, you might be able to get your dad to carry you around in a custom suit fashioned after a MechWarrior vehicle.

The suit is beautifully designed by creator Gridlock Cosplay, and features an Arduino-powered control system. This allows the little pilot to command the mech’s human “engine” via a joystick and system of lights. The suit also features exterior and interior lights, a pilot cooling fan, spinning “radar” assembly, retractable pilot cage, and of course a cell phone holder in the padded engine compartment.

Arduino Uno controls a trio of singing pumpkins

Halloween is just around the corner, and to celebrate, fadecomic decided to set up a trio of singing animatronic pumpkins to belt out scary songs. 

The project uses a Raspberry Pi for high level control and browser interface, and sends animation commands to an Arduino Uno via USB serial.

The Uno takes this data and translates it into actual pumpkin movements coordinated with music. The resulting trio of pumpkins each use their own servo to lift the top of the foam gourd up like a gigantic mouth, and also feature PWM-driven LED eyes. A light show controlled by SSRs completes the spooky musical effect. 

Build info is available here and the Arduino code can be found on GitHub.