Even though Halloween is over, we have still received some great blog tips for Halloween projects from the Adafruit community. Seen above is a great NeoPixel Jack-O-Lantern from Christopher Cantrell – you can check out more info on the build over at his GitHub page!
I have four bright neo-pixel plates and a couple of smaller LED grids. I might as well put them to work in a Jack-O-Lantern this year.
LED Grid: http://www.adafruit.com/product/902
NeoPixel Plate: http://www.adafruit.com/products/1487
Here is the hardware and pumpkin:
The plan is to use the two smaller displays for eyes. Three of the plates will make a mouth. I’ll offset them to better allow a smile. I’ll use the center stripe of the fourth for a nose.
I already have the propeller software going. I was planning a Circuit Cellar article (of course) on the grid mapping. This project will be a good addition to the article.
Here is another project using LED grids for eyes: https://www.youtube.com/watch?v=e3O-ti5n6jw
Featured Adafruit Products!
Adafruit Bicolor LED Square Pixel Matrix with I2C Backpack: What’s better than a single LED? Lots of LEDs! A fun way to make a small colorful display is to use a 1.2″ Bi-color 8×8 LED Matrix. Matrices like these are ‘multiplexed’ – so to control all the 128 LEDs you need 24 pins. That’s a lot of pins, and there are driver chips like the MAX7219 that can help control a matrix for you but there’s a lot of wiring to set up and they take up a ton of space. Here at Adafruit we feel your pain! After all, wouldn’t it be awesome if you could control a matrix without tons of wiring? That’s where these adorable LED matrix backpacks come in. We have them in three flavors – a mini 8×8, 1.2″ Bi-color 8×8 and a 4-digit 0.56″ 7-segment. They work perfectly with the matrices we stock in the Adafruit shop and make adding a bright little display trivial. It’s called a Bicolor LED, but you can have 3 colors total by turning on the red and green LEDs, which creates yellow. That’s 3 colors for the price of 2! Read more.
Adafruit NeoPixel NeoMatrix 8×8 – 64 RGB LED Pixel Matrix: Put on your sunglasses before wiring up this LED matrix – 64 eye-blistering RGB LEDs adorn the NeoMatrix for a blast of configurable color. Arranged in an 8×8 matrix, each pixel is individually addressable. Only one microcontroller pin is required to control all the LEDs, and you get 24 bit color for each LED. Read more.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — How Intel Makes a Chip
Wearables — Tape tactics
Electronics — Ground connections cooler via more vias
Biohacking — Itch Tracker for Apple Watch
No comments yet.
Sorry, the comment form is closed at this time.