Planet Arduino

Whether it’s an elf that stealthily watches from across the room or an all-knowing Santa Claus that keeps a list of one’s actions, spying during the holidays is nothing new. But when it comes time to receive presents, the more eager among us might want to know what presents await us a few days in advance under the tree, which is what prompted element14 Presents host Milos Rasic to build a robotic ornament equipped with vision and a compact movement system.

On the hardware side, Rasic went with an Arduino Nicla Vision board as it contains a camera and the ability to livestream the video feed over the network. A pair of continuous servo motors allow the mobile robot platform to drive along the ground while another set of servos open the ornament’s trapdoor to expose the wheels and carefully lower it from the tree through a clever system of bands and thread.

The livestreaming portion of the project was based off an existing MJPEG RTP example that exposes a web API endpoint for fetching the latest frame from the Nicla’s onboard camera and delivering it via Wi-Fi. To control the robot, including winching, driving, and toggling the lights, Rasic created a Node-RED interface that sent MQTT messages to the Nicla.

To see more about how this creative device was designed, watch Rasic’s video below or read his full write-up here.

The post This Nicla Vision-powered ornament covertly spies on the presents below appeared first on Arduino Blog.

[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 DC power supply.

[rudolph] enlisted the help of their son to draw up the alphabet display — printed straight onto thematically decorative wallpaper — and cut out holes in the light bulbs for the LEDs.  Next up was cut some fibre board as a firm backing to mount the electronics inside the frame and drill holes for the NeoPixels. It was a small odyssey to cut and solder all the wires to the LEDs, but once done, [rudolph] divided their rudLight alphabet into three rows and added capacitors to receive power directly.

[rudolph] has provided the code they used for this project — just be sure to change the output pin or any other modifications as relevant to your build. They’ve even created an app to make controlling the rudLights easier. If Bluetooth isn’t your thing then [rudolph] is working on building an Arduino Pro Mini version, but no word on when that will be done.

We love a good prop or inspired replica here at Hackaday, so this framed Alphabet Wall is in good company.

For all the hustle and bustle of the holiday season, people still find ways to make time for their passions. In the lead up to Christmas, [Edwin Mol] and a few co-workers built themselves an LED Christmas tree that adds a maker’s touch to any festive decor.

Before going too far, they cut out a cardboard mock-up of the tree. This an easy step to skip, but it can save headaches later! Once happy with the prototype, they printed off the design stencils and cut the chunks of clear acrylic using power tools — you don’t need a laser cutter to produce good stuff — and drilled dozens of holes in the plastic to mount LEDs, and run wires.

A Raspberry Pi 3 and Arduino Uno make this in league with some pretty smart Christmas trees. MAX6968 5.5V constant-current LED driver chips and MOFSETs round out the control circuit. During the build, the central LED column provided a significant challenge — how often do you build a custom jig to solder LEDs? That done, it’s time for a good ol’-fashioned assembly montage! The final product can cycle through several different lighting animations in a rainbow of colours — perfect for a festive build.

Even though Christmas has just passed, your holiday hacks are still flooding in! While you wait for us to push those out the metaphorical door, check out some of our other favorites like this massive pixel display, a free-formed LED tree, and a Raspberry Pi gingerbread house.

Christmas light displays winking and flashing in sync to music are a surefire way to rack up views on YouTube and annoy your neighbours. Inspired by one such video, [Akshay James] set up his own display and catalogued the process in this handy tutorial to get you started on your own for the next holiday season.

[James], using the digital audio workstation Studio One, took the MIDI data for the song ‘Carol of the Bells’ and used that as the light controller data for the project’s Arduino brain. Studio One sends out the song’s MIDI data, handled via the Hairless MIDI to serial bridge, to the Arduino which in turn sets the corresponding bit to on or off. That gets passed along to three 74HC595 shift registers — and their three respective relay boards — which finally trigger the relay for the string of lights.

From there, it’s a matter of wiring up the Arduino shift register boards, relays, and connecting the lights. Oh, and be sure to mount a speaker outdoors so passers-by can enjoy the music:

Be sure to set up a secondary power source for the relays, as drawing the power from the Arduino is likely to cause big problems. If your preferred digital audio workstation doesn’t have a virtual MIDI instrument, [James] used loopMIDI for the desired effect. He has also provided the code he used to save you some trouble if you’re building this during an invariably hectic holiday season.

Of course, you could always plug your lights into an IoT power bar and have fun that way.

This holiday season there are so many ways to customize your lights with DIY electronics.

Read more on MAKE

The post 10 Merry Circuits to Illuminate Your Holiday appeared first on Make: DIY Projects and Ideas for Makers.

This holiday season there are so many ways to customize your lights with DIY electronics.

Read more on MAKE

The post 10 Merry Circuits to Illuminate Your Holiday appeared first on Make: DIY Projects and Ideas for Makers.

The WS2812 is an amazing piece of technology. 30 years ago, high brightness LEDs didn’t even exist yet. Now, you can score RGB LEDs that even take all the hard work out of controlling and addressing them! But as ever, we can do better.

Riffing on the ever popular Adafruit NeoPixel library, [Harm] created the WS2812FX library. The library has a whole laundry list of effects to run on your blinkenlights – from the exciting Hyper Sparkle to the calming Breathe inspired by Apple devices. The fantastic thing about this library is that it can greatly shorten development time of your garden-variety blinkables – hook up your WS2812s, pick your effect, and you’re done.

[Harm]’s gone and done the hard yards, porting this to a bevy of platforms – testing it on the Arduino Nano, Uno, Micro and ESP8266. As a proof of concept, they’ve also put together a great demonstration of the software – building some cute and stylish Christmas decorations from wood, aluminium, and hacked up Christmas light housings. Combining it with an ESP8266 & an app, the effects can be controlled from a smartphone over WiFi. The assembly video on YouTube shows the build process, using screws and nails to create an attractive frame using aluminium sheet.

This project is a great example of how libraries and modern hardware allow us to stand on the shoulders of giants. It’s quicker than ever to build amazingly capable projects with more LEDs than ever. Over the years we’ve seen plenty great WS2812 projects, like this sunrise alarm clock or this portable rave staff.
As always, blink hard, or go home. Video after the break.

Finding the perfect gift for everyone on your list it’s fun and inspiring. Let us help you choose the perfect gift: next to our classic Arduino, Genuino boards and goodies, we created 3 thematic guides to highlight the products in our stores that deserve a spot on your gift list. And to make it even more special, we added a FREE SHIPPING* feature for orders over 150$/100€.

TINKERING
Experience the magic of playing with technology. Your creative confidence is going to boost!

Click and explore all the products of the gift guide dedicated to Tinkering

• Many people around the world had fun tinkering on the 15 projects featured in the Arduino Starter Kit and Genuino Starter Kit. Now you can make someone happy too for XMas! The Starter Kit is available in English and Italian.

• The 3rd edition of Getting Started with Arduino by Massimo Banzi and Michael Shiloh introduces to the UNO board, gives you lots of ideas for projects, and helps you experiment with them right away.

• If you are looking for interacting with your surroundings in experimental ways, Arduino AtHeart Bare Conductive Touch Board and Touch Board Kit can turn almost any material or surface into a sensor. Connect objects to its 12 electrodes, using conductive paint or any conductive material and create amazing musical instruments.

KIDS
Get inspired and make this holiday special for your kids! Get them to experiment with science and technology and the wonderful world of STEAM.

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• You can share your excitement with electronics playing with kids and teenagers on the TV-B-Gone Kit, a universal remote designed to shut off any TV. It’s fun making it and using it.

• Get started with paper circuits and stickers with Chibit Circuit Sticker Start Kit an imaginative and easy way to make fun electronics projects without coding, soldering, or hands-on experience.

• Play with the most hackable tiny synth ever! NS1nanosynth synthesizer is an handeld 220x85mm analog modular synthesizer coupled with an Arduino Leonardo platform. it’s a tool to explore the potential contamination between analog and digital music creation!

IOT & CONNECTIVITY
Create connected devices and master your IoT skills. It’s easier than you think.

Click and explore the product of the gift guide dedicated to IoT

•  Blend Micro is a RedBearLab Arduino AtHeart integrated development board. They “blend”ed Arduino with Bluetooth 4.0 Low Energy (aka BLE or Bluetooth Smart) into a small single board. You can quickly and easily develop low power IoT projects.

• Making things Talk 2nd edition by Arduino co-founder Tom Igoe, shows you how to get your gadgets to communicate with you and your environment. It’s perfect for people with little technical training but a lot of interest.In this expanded edition, you’ll learn how to form networks of smart devices that share data and respond to commands

On our stores we are offering FREE SHIPPING for all orders over 150$ (below 3 Lb) in USA via USPS Priority Mail, and for all orders over 100€ (below 3 Kg) via GLS in Europe.

Delivery will take 4-5 working days to reach you. In December, this may take longer due to end-of-the-year seasonality. Should you need delivery by December 24th, we strongly advise you to place the order before December 18th.

Free Shipping is available from November 27th 2015 until January 6th 2016.

[Hunter] wanted to do something a bit more interesting for his holiday lights display last year. Rather than just animated lights, he wanted something that was driven by data. In this case, his display was based on the mood of people in his city. We’ve seen a very similar project in the past, but this one has a few notable differences.

The display runs off of an Arduino. [Hunter] is using an Ethernet shield to connect the Arduino to the Internet. It then monitors all of the latest tweets from users within a 15 mile radius of his area. The tweets are then forwarded to the Alchemy Sentiment API for analysis. The API uses various algorithms and detection methods to identify the overall sentiment within a body of text. [Hunter] is using it to determine the general mood indicated by the text of a given tweet.

Next [Hunter] needed a way to somehow display this information. He opted to use an LED strip. Since the range of sentiments is rather small, [Hunter] didn’t want to display the overall average sentiment. This value doesn’t change much over short periods of time, so it’s not very interesting to see. Instead, he plots the change made since the last sample. This results in a more obvious change to the LED display.

Another interesting thing to note about this project is that [Hunter] is using the snow in his yard to diffuse the light from the LEDs. He’s actually buried the strip under a layer of snow. This has the result of hiding the electronics, but blurring the light enough so you can’t see the individual LEDs. The effect is rather nice, and it’s something different to add to your holiday lights display. Be sure to check out the video below for a demonstration.

We’ve seen capacitive touch organs manifest in pumpkin form. Though they are a neat idea, there’s something about groping a bunch of gourds that stirs a feeling of mild discomfort every time I play one. [mcreed] probably felt the same way and thus created this light-up Jello organ, so he can jiggle-slap Christmas carols, removing any sense of doubt that touching food to play music is weird…

This take on the capacitive tone producing instrument makes clever use of the transparent properties of Jello as well as its trademark wiggling. [mcreed] fills several small mold forms with festively colored strawberry and lime mix. One end of a wire connection is submerged in the liquid of each cup before it has a chance to solidify along with a bright LED. Once chilled and hardened, the gelatinous mass acts as a giant light emitting contact pad. An Arduino is the micro-controller used for the brain, assigning each Jello shape with a corresponding note. By holding onto a grounding wire and completing the acting circuit, one can play songs on the Jello by poking, spanking, or grazing the mounds.

Though I’m not entirely sure if the video is Jello propaganda or not, the idea is applaudable. I prompt anyone to come up with a more absurd item to use for a capacitive organ (zucchinis have already been done).