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.
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