How I Made Smartphone Bluetooth Controlled PWM Light for My Kids

In this instructable I'm gonna show you how I made this simple Bluetooth Smartphone controlled PWM LED light for my kids. This is a simple but beautiful Arduino project to make.I've used this awesome application ArduDroid from Mr. Hazim Bitar.I really want to express my thanks to Mr. Hazim for this ...
By: ahmedebeed555

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Instructables 14 Feb 22:20

Mechanical tulip is a glowing work of Valentine’s Day art

Tulips come in all shapes and sizes, but Jirí Praus has created a mechanical version like nothing you’ve ever seen. It’s masterfully crafted as a gift for his wife, using bent wire to form its six petals and stem. 

In order to make this present truly amazing, however, a servo-driven linkage system opens up the tulip when touched, exposing seven programmable LEDs in the center, along with 30 bright white SMD LEDs on the petals themselves.

Control for the freeform flower is accomplished via an Arduino Nano, hidden inside its wooden base. It’s a truly spectacular build, shown below illuminating the surrounding area with a brilliant light and shadow pattern.

It’s done! Mechanical tulip as a present for my wife. When caressed it blooms into various colors. And will never fade. #freeform #jewelry #arduino

— Ji?í Praus (@jipraus) February 12, 2019

Arduino Clocks

Fokus on projects with mechanical display of time.
By: Schabenstolz

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Instructables 14 Feb 19:04

LED NeoPixel Clock

The design and creation of this instructable was created for the purpose of an Open Design and Digital Fabrication paper at Massey University, NZ. Based in the Fab Lab WGTN, the aim of the paper was to utilise open design methodologies and digital fabrication tools to produce an open design project....
By: MaddieJ14

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Instructables 14 Feb 19:01

Fabric Neopixel Clock

Torus shaped Materials:FeltNeedle and white thread3mm corrugated cardboard3mm clear acrylic3mm MDFHot glue gun Electronics from my other Instructable post (link) Here are four illustrator files you will need to download along with pictures of the files. Each illustrator file name includes the mat...
By: MichaelaL12

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Instructables 14 Feb 18:31


This is a wired game pad for PC. It can be used to play emulator and PC games. Also the joystick can serve as a mouse for your PC. The Game pad is controlled using an Arduino Pro Micro. 1. Old retro game controllerYou can use a retro game controller like the one I used. If you have access to a 3d...
By: engineerkid1

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Instructables 14 Feb 16:54

XBee Module Interfacing with Arduino

In previous tutorials we have learned about ZigBee protocol and its architecture, and also learned about wireless communication between two Xbee modules. Now in this tutorial we will interface XBee module with Arduino Uno board.

Circuit Digest 14 Feb 10:26

Solar Neopixel Clock

This project is an iteration of big thanks to Wellington Fab Lab for helping get this project finished. Materials:1x Arduino Nano1x RTC1x BreadboardWireSolder1x 6mm 1200mmx600mm Poplar ply (or other available wood)1x 6mm 1200mmx600mm Poplar pl...
By: HNSdesign

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Instructables 14 Feb 09:01

Light Up Your Valentine With Sparkling Matrix

Valentine’s Day is a chance for you to send love messages. Why not make a fun LED face with inexpensive components to express your feeling! Hardware components Seeeduino V4.2Base ShieldGrove - Red LED Matrix w/DriverGrove - Gesture(PAJ7620U2)Software apps and online services Arduino IDE In th...
By: Seeed Studio

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Instructables 14 Feb 03:30

Laser Light Show Turned Into Graphical Equalizer

The gold standard for laser light shows during rock concerts is Pink Floyd, with shows famous for visual effects as well as excellent music. Not all of us have the funding necessary to produce such epic tapestries of light and sound, but with a little bit of hardware we can get something close. [James]’s latest project is along these lines: he recently built a laser light graphical equalizer that can be used when his band is playing gigs.

To create the laser lines for the equalizer bands, [James] used a series of mirrors mounted on a spinning shaft. When a laser is projected on the spinning mirrors it creates a line. From there, he needed a way to manage the height of each of the seven lines. He used a series of shrouds with servo motors which can shutter the laser lines to their appropriate height.

The final part of the project came in getting the programming done. The brain of this project is an MSGEQ7 which  takes an audio input signal and splits it into seven frequencies for the equalizer. Each one of the seven frequencies is fed to one of the seven servo-controlled shutters which controls the height of each laser line using an Arduino. This is a great project, and [James] is perhaps well on his way to using lasers for other interesting musical purposes.

Hack a Day 14 Feb 03:00