Summary of HALLOWEEN PUMPKIN SCARES WITH AN EVIL EYE
This article describes a Halloween project transforming a classic pumpkin into an animatronic scarecrow. A real pumpkin houses an animated eye made from a ping-pong ball, which twitches and rolls using servos controlled by an Arduino Nano. An ultrasonic sensor detects approaching people to trigger the movement, creating an interactive and spooky effect suitable for kids seeking high-quality scares.
Parts used in the Halloween Pumpkin Scares with an Evil Eye:
- Real pumpkin
- Ping-pong ball
- Markers
- Servos (pair)
- Arduino Nano
- Ultrasonic sensor
These days, a classic Jack O’ Lantern just doesn’t cut the mustard. Kids are expecting to be scared by high-quality animatronics at a minimum. This haunting work by [Zero To Infinity] might just do the trick.

A real pumpkin is pressed into service in this build, with the usual threatening grin and candlelit interior. However, where it differs is in its single, animated eye. The eye itself is constructed of a pingpong ball, drawn upon with markers for a creepy bloodshot look. A pair of servos allow the eye to twitch and roll, under the command of an Arduino Nano. For further interactivity, an ultrasonic sensor is used to only trigger the pumpkin when it senses a person approaching.
It’s a fun holiday build that also serves as a great primer on how to work with servos and microcontrollers. We can imagine a more advanced setup using more sensors and pumpkins to train multiple eyes on the unsuspecting visitor. If that’s not scary enough, perhaps just make your pumpkins breathe fire instead. Video after the break.
Source: HALLOWEEN PUMPKIN SCARES WITH AN EVIL EYE
- What makes this pumpkin different from a classic Jack O’ Lantern?
It features a single animated eye constructed from a ping-pong ball that can twitch and roll. - How is the creepy look of the eye achieved?
The eye is drawn upon with markers to create a bloodshot appearance. - What component controls the movement of the eye?
An Arduino Nano commands the pair of servos to make the eye move. - Does the pumpkin move constantly or only when triggered?
The ultrasonic sensor triggers the pumpkin to move only when it senses a person approaching. - Can this build be expanded to include more sensors or pumpkins?
Yes, the article suggests imagining a more advanced setup with multiple sensors and pumpkins to train multiple eyes. - Is this project suitable for beginners learning microcontrollers?
Yes, it serves as a great primer on how to work with servos and microcontrollers. - What alternative scary feature does the author suggest if the eye is not enough?
The author suggests making the pumpkins breathe fire instead.
