Category Archives: neopixel

Code Review Lamp Subtly Reminds You To Help Your Fellow Developer

[Dimitris Platis] works in an environment with a peer review process for accepting code changes. Code reviews generally are a good thing. One downside though, is that a lack of responsiveness from other developers can result in a big hit to team’s development speed. It isn’t that other developers are unwilling to do the reviews, it’s more that individuals are often absorbed in their own work and notification emails are easily missed. There is also a bit of a “tragedy of the commons” vibe to the situation, where it’s easy to feel that someone else will surely attend to the …read more

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Posted in 3d printed, code review, ESP8266, led hacks, led ring, neopixel, notification, rgb, Software Development, usb, Wemos d1, wemos d1 mini | Leave a comment

IoT Traffic Light Is Cardboard Made Fun

Traffic lights! Kids love them, hackers love them, and they’re useful in industrial contexts to see if the giant machine is currently working or having a bad day. While the real deal are unwieldy and hard to come by, there’s nothing stopping you tackling a fun cardboard build at home.

In this case, the light is courtesy of WS2812b LED strips. They’re a great choice, as they interface easily with most microcontrollers thanks to readily available libraries. An ESP8266 runs the show here, serving up a basic web interface over WiFi. This allows the color of the various LEDs to …read more

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Posted in ESP8266, led hacks, neopixel, ws2812b | Leave a comment

Custom ATTiny85 Board Powers Kids’ Light Show

We’ve often said that kids with hackers and makers for parents must be some of the luckiest kids in the world. While all the other children have to settle for some mass produced drivel from Toys“R”Us Amazon, they’ve got some of the most thoughtfully engineered and built toys and gadgets on the planet. After all, there’s no way any hacker worth their salt is going to give anything less than 110% for their own child.

A case in point is this RGB star nightlight that [Unexpected Maker] built for his children. The star itself is simple enough, just a basic …read more

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Posted in ATtiny Hacks, attiny85, kids, led, led hacks, neopixel, nightlight | Leave a comment

Blinging Buttons for Pick and Place

With 3D-printing, cheap CNC machines, and the huge variety of hardware available these days, really slick-looking control panels are getting to be commonplace. We’re especially fond of those nice indicators with the chrome bezels, and the matching pushbuttons with LED backlighting; those can really make a statement on a panel.

Sadly for [Proto G], though, the LEDs in his indicator of choice were just boring old one-color units, so he swapped them out and made these addressable RGB indicators. The stock lamps are not cheap units, but they do have a certain look, and they’re big enough to allow room …read more

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Posted in control panel, indicator, led, led hacks, neopixel, pilot, rgb, switch | Leave a comment

After The Sun Set On San Mateo, LED Takes Over Hackaday’s BAMF Meetup

After this Spring’s Bay Area Maker Faire closed down for Saturday night and kicked everybody out, the fun moved on to O’Neill’s Irish Pub where Hackaday and Tindie held our fifth annual meetup for fellow Maker Faire attendees. How do we find like-minded hackers in a crowded bar? It’s easy: look for tables lit by LEDs and say hello. It was impossible to see everything people had brought, but here are a few interesting samples.

The team from Misty Robotics brought their namesake product to the meetup and carried Misty when there wasn’t enough room to let the robot run. …read more

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Posted in led hacks, maker faire, neopixel, persistence of vision, POV display, RGB LED matrix, robots hacks, tinycircuits | Leave a comment

Definitely-Not-Neopixel Rings, From Scratch!

The WS2812 addressable LED is a marvellous component. Any colour light you want, all under the control of your favourite microcontroller, and daisy-chainable to your heart’s content. Unsurprisingly they have become extremely popular, and can be found in a significant number of the project s you might read about in these pages.

A host of products have appeared containing WS2812s, among which Adafruit’s Neopixel rings are one of the more memorable. But they aren’t quite as cheap as [Hyperlon] would like, so the ever-resourceful hacker has created an alternative for the constructor of more limited means. It takes the form …read more

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Posted in led, led hacks, neopixel, neopixel ring, ws2812 | Leave a comment

NeoPixel Game Rewards Button Mashing

Who has the fastest thumbs at Maker Faire UK? That’s the question [wellsey1972] sought to answer when he created this simple game using little more than two NeoPixel rings, two chunky arcade buttons, and a Trinket.

The idea is simple: each button push lights up one NeoPixel. The first one to fill up their ring is the winner, and is treated to a ring of flashing green lights. The loser, of course, gets flashing red. Both controllers are hard-wired to a box containing a Trinket, a custom PCB with pull-up resistors, and two sets of solderless terminals. [wellsey1972] smartly re-purposed …read more

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Posted in led hacks, neopixel, neopixel ring | Leave a comment

Giving An LED Bulb Some Smarts

How many of your projects been spawned purely out of bored daydreaming? For want of something more productive to do, [dantheflipman] hacked a standard LED bulb from Wal-Mart into a smart bulb.

After pulling it apart, they soldered wires to the threaded socket and added a connector for a Hi-Link hlk-pm01 power module. The output caps at 5 V and 600 mA, but who says this was going to be a searchlight? A Wemos D1 Mini clone slides nicely beside the power module, and stacked on top is a NeoPixel Jewel 7. [dantheflipman] admits he has yet to add a …read more

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Posted in Hi-link, led hacks, neopixel, Power Module, Smart Bulb, wemos d1 mini, wireless hacks | Leave a comment

LED Illusion Makes Colorful Water Drops Defy Gravity

The 60s and 70s were a great time for kitschy lighting accessories. Lava lamps, strobes, color organs, black light posters — we had it all. One particularly groovy device was an artificial rain display, where a small pump dripped mineral oil over vertical monofilament lines surrounding a small statue, with the whole thing lighted from above in dramatic fashion. If it sounds appalling, it was, and only got worse as the oil got gummy by accumulating dust and debris.

While this levitating water drops display looks somewhat similar, it has nothing to do with that greasy lamp of yore. [isaac879]’s …read more

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Posted in led, led hacks, misc hacks, neopixel, Nozzle, pump, pwm, rgb, strobe, time fountain | Leave a comment

Giving Stranger Things For Christmas

[rudolph] was at a loss on what to get his niece for Christmas. It turns out she’s a huge fan of Stranger Things, so the answer was obvious: make her an alphabet wall she can control!

Downsizing the scale to fit inside a document frame, [rudolph] calls their gift rudLights, and a key parameter of this build was to make it able to display any phrases sent from their niece’s Amazon Fire tablet instead of constantly displaying hard-coded phrases. To do so, it has a HC-05 Bluetooth module to forward the commands to the NeoPixel LEDs running on a 5V …read more

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Posted in instructables, led hacks, neopixel, prop, Stranger Things | Leave a comment