Schlagwort: arduino

  • Monitor your sleep quality with Arduino

    Monitor your sleep quality with Arduino

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    Monitor your sleep quality with Arduino

    Arduino Team — December 27th, 2017

    While it can be difficult to get enough sleep, at least you can try to make it as restful as possible when you are in bed. That’s the idea behind this project by Julia Currie and Nicholas Sarkis, who developed an Arduino Nano-based sleep monitor for their final ECE 4760 project at Cornell.

    The bulk of the monitoring device takes the form of a glove which measures heart rate using an IR sensor, along with movement via an accelerometer. Breathing is recorded using a conductive band wrapped around the user’s chest, which changes resistance depending on how it is stretched.

    The Nano mounted to the glove collects this information, and transmits it wirelessly using an nRF24L01 chip to a PIC32 microprocessor on a base station. Data is then graphed nicely on a TFT display for further analysis.

    You can read more about the project here and see the video below!



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    Website: LINK

  • These students made their own Guitar Hero-like video game

    These students made their own Guitar Hero-like video game

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    These students made their own Guitar Hero-like video game

    Arduino Team — December 23rd, 2017

    If you’d like to create your own simulated guitar from scratch, you’ll want to check out this project by Cornell ECE students Jake Podell and Jonah Wexler. It uses four conductive strings on the neck to sense which note is selected, along with a pick wired as input to tell when the string has been plucked.

    An Arduino Uno takes these inputs and feeds them to a computer via USB serial. Information is then transmitted over Bluetooth to a PIC32 microcontroller, which displays a scrolling fretboard on a TFT screen.

    The pseudo-musician must strum along to the song shown—Ode to Joy in this case—hearing a strumming sound for correct notes, or an annoying beep for errors.

    Similar to the classic music games like Rock Band and Guitar Hero, we use a TFT to display notes that move across the screen towards a strum region, produce guitar plucks and undertones of a song, and keep track of the user’s score. The user plays notes on a wireless mock guitar built with carbon-impregnated elastic as strings and a conducting plectrum for the guitar pick. The guitar is connected to an Arduino Uno which communicates wirelessly via Bluetooth to the PIC32. The goal of this video game is to learn the basic finger movements of holding down strings and strumming at the correct time for novice guitar players. The project can easily be extended for more advanced finger movements on the strings and strum timing for those with more experience.

    You can see more of the project in its write-up here and in the video below!



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    Website: LINK

  • Turn a flatbed scanner into a PCB UV exposure device

    Turn a flatbed scanner into a PCB UV exposure device

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    Turn a flatbed scanner into a PCB UV exposure device

    Arduino Team — December 23rd, 2017

    If you want to create your own custom PCBs, you could design it and wait for a fab house to send it back, dealing with any errors, or you could do it yourself. Hacker Andras Kabai decided to go for the second option, and made his own UV exposure tool to help him with the process using an old flatbed scanner as the base.

    Rather than line the entire underside of the bed with LEDs, he cleverly repurposed the single-axis gantry that would normally hold the scanning unit to instead contain a row of LEDs to expose the PCB on top.

    The project was prototyped with an Arduino Pro Mini, but was eventually supplanted by a Mega when the smaller board’s limits were reached.

    Plenty of DIY PCB UV exposure tool building posts are available on the internet with total different approaches. I also designed my own, to fulfill my needs: it should be relative small and portable and the hacking/modding should be fun. ? Flat bed scanners were found as possibly good target. Compared to most of the other scanner mods, which use LED arrays or fluorescent tubes across the whole scanner bed area, my plan was to use the scanner carriage with only few LEDs and control its movement (and brightness) under the given PCB.

    You can check out the device’s development in the videos below, which show off its interface and the gantry in motion.



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    Website: LINK

  • Create a custom Secret Santa trivia box with Arduino

    Create a custom Secret Santa trivia box with Arduino

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    Create a custom Secret Santa trivia box with Arduino

    Arduino Team — December 20th, 2017

    Participating in Reddit’s Secret Santa this year, hacker “Haxxa” decided to go all out, picking out not only several gifts for the recipient, but an Arduino-powered trivia box to house them in.

    In use, an Arduino Nano onboard feeds queries to the gift recipient on an LCD display, allowing them to answer using one of three buttons. When 20 questions have been answered correctly, the box unlatches via a servo motor.

    In addition to the physical items inside, the project also generates its own web page, revealing digital gifts to go along with the physical items!

    To open the box, my giftee must complete the trivia game, there are 25 questions all based around my giftee’s interests, posts and hobbies. Once complete they will be rewarded with the gifts inside. I also included a wireless access point which activates upon completion of the game. Connecting to this access point reveals a website with more digital gifts including subscriptions, more games and challenges.

    You can see it in action below and find its code over on GitHub.



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    Website: LINK

  • Interact with the virtual world in a whole new way

    Interact with the virtual world in a whole new way

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    Interact with the virtual world in a whole new way

    Arduino Team — December 20th, 2017

    As reported by the Creative Applications Network, “Tangibles Worlds explores the effects of tactile experience as a catalyst for full immersion in VR.”

    The project by Stella Speziali takes the form of three separate boxes, along with an Oculus Rift headset. When a hand is placed in one of these boxes, the user is virtually transported to another dimension of sight and sound, controlled by IR distance sensors, flex sensors, capacitive wire, and several other devices interfaced with an Arduino Mega.

    Each box contains an IR distance sensor, which detects when a hand is inserted and display the virtual world attributed to the box. This new virtual world surrounds the user. A sensor is placed on each wall within the boxes, this sensor recognizes the hand and activates an animation inside the virtual world. I tried to map the sensors in the virtual universe so that a little clue is given to the user and will lead him to trigger the animations.

    The idea behind this installation is to go beyond “traditional” VR controllers for entirely new level of interaction. The video seen here gives an excellent preview of the strangeness of this type of interface, though using it with a headset and sensors would likely be an altogether different experience!



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    Website: LINK

  • This control panel references your favorite sci-fi films

    This control panel references your favorite sci-fi films

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    This control panel references your favorite sci-fi films

    Arduino Team — December 19th, 2017

    While you may question if some of the blinking lights and buttons in science fiction movies actually do anything, you’d still really like to hit those buttons just to see what happens, right? If that sounds like you, then something like this rocket ship panel from maker “r570sv” might be just the thing for your entertainment.

    The build features three Arduino boards for control, and references a total of 13 works of sci-fi throughout the brightly lit-up panel. Highlights of the project include a controllable infinity mirror, and a Raspberry Pi-driven screen that displays different movie clips depending on what combination of buttons, switches, and knobs are selected. Still other buttons and lights don’t really do anything, following along perfectly from the theme.

    You can see more of the panel on Instructables and in the video below!



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    Website: LINK

  • Star Wars fan creates an Arduino-powered rebel pilot chest box

    Star Wars fan creates an Arduino-powered rebel pilot chest box

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    Star Wars fan creates an Arduino-powered rebel pilot chest box

    Arduino Team — December 19th, 2017

    If you’d like a rebel fighter pilot suit, complete with the automated chest box, then look no further than this excellent build from “badjer1.”

    It features a chest box with the same dimensions seen in the movies that lights up randomly, and even allows bored pilots to play a game of Pong on its double-LED matrix display using a dial next to it.

    The Arduino Uno-powered device can also scroll through marquee displays featuring X-Wings and TIE Fighters, and play the Imperial March as required.

    You can see more about the project, including how the box and the rest of the uniform were weathered, in badjer1’s write-up here.



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    Website: LINK

  • Automatic trash can optimized for battery life

    Automatic trash can optimized for battery life

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    Automatic trash can optimized for battery life

    Arduino Team — December 15th, 2017

    If you have a trash can with a lid, you’ve probably accepted the small inconvenience of opening it with your hand and foot. YouTube hacker MadGyver, however, came up with a different solution using an Arduino Nano and a micro servo to open the lid whenever someone places a hand near the unit’s ultrasonic sensor.

    In order to run the device on batteries, MadGyver modified the Nano for efficiency, shedding the power LED, along with the voltage regulator. He also used a transistor to turn off power to the servo when in standby mode, and added a capacitor to accommodate for the power surge experienced when the servo starts moving.

    After these mods, his trash can should theoretically function for over three years with the correct batteries! Check it out in the video below!



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    Website: LINK

  • New search engine and Arduino reference!

    New search engine and Arduino reference!

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    New search engine and Arduino reference!

    mastrolinux — December 14th, 2017

    The Arduino web team has working hard behind the scenes improving our legacy systems. Now, it’s time to work on something more interesting for the team and more useful for our community! From here on out, we will update you every month on the latest and greatest activities…

    Today, we are announcing a pair of major features that are only a mere preview of what you can expect to see from an Arduino user’s point of view:

    • The blog has a new search engine that is much faster, more precise, and allows readers to filter results.
    • The Arduino reference is now quicker,  mobile-friendly, and completely open to contributions. You can check out our GitHub reference repo here.

    Let’s look at how those two features work and how they are implemented. The search engine is powered by our provider Algolia, offering an impressively fast search engine and enhanced UX. Our goal is to integrate it with each of our websites and finally have a unified search for all Arduino-related content.

    We are going to be testing the search engine for a bit on the blog and eventually roll it out to our websites.

    Perhaps what we are most proud of, though, is the new reference engine:

    • Arduino users can directly contribute to the reference by creating a pull request here.
    • We are going to support multiple languages. In fact, some users have already helped us in creating French, German, Korean, Italian, Japanese, Portuguese, and Spanish versions.
    • As soon as a new pull request has been merged, the system deploys to our website automatically, and if someone modifies the English version of the reference, all other language repositories are going to be notified as well.

    This is just the beginning with much more to come. Stay tuned!



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    Website: LINK

  • Slide the “time clock” into position with Arduino

    Slide the “time clock” into position with Arduino

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    Slide the “time clock” into position with Arduino

    Arduino Team — December 14th, 2017

    Years ago, if you wanted to track employee hours, you needed to have them punch a time card. Saunders Machine Works, however, uses a facial recognition system running on an iPad for this purpose, meaning they had to figure out how to sense employees of different heights. What they came up with is a fixture that automatically raises and lowers the tablet, using a stepper motor and linear rails.

    The project employs a Lidar sensor on the bottom of the device to detect employee presence, and another above the iPad’s mounting hardware to sense when it’s at the correct height, moving until the top sensor is clear. Control is provided by a pair of Arduino Nanos.

    Be sure to check it out in the video below!



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    Website: LINK

  • 3D-printed miniature roller coaster powered by Arduino Mega

    3D-printed miniature roller coaster powered by Arduino Mega

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    3D-printed miniature roller coaster powered by Arduino Mega

    Arduino Team — December 13th, 2017

    While many enjoy roller coasters, few can claim the same dedication of engineer Matt Schmotzer, who 3D-printed a 1/25th scale replica of Invertigo, a boomerang coaster at Kings Island in Ohio.

    As reported on 3D Printer Chat, the CAD model took only a week to complete, but 3D printing this 4’ x 8’ creation took an incredible 450 hours. This doesn’t include the countless hours spent assembling and debugging it.

    The coaster runs on an Arduino Mega, using 42 of the 54 available IO pins. This allows it to not only lift and drop the coaster, but also feature details like actuated gates and restraints to keep the tiny imaginary passengers safe.

    Be sure to check it out in the video below!



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    Website: LINK

  • This DIY machine mixes your favorite three-ingredient cocktail

    This DIY machine mixes your favorite three-ingredient cocktail

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    This DIY machine mixes your favorite three-ingredient cocktail

    Arduino Team — December 12th, 2017

    Do you and your friends have a favorite cocktail? If so—and if it has three ingredients—then this Arduino-based cocktail machine from YouTuber “GreatScott!” may be worth checking out.

    The device is capable of mixing three liquids, which in GreatScott’s case consist of vodka, cranberry juice, and grapefruit juice (also known as a Sea Breeze), in a drink size selected via a rotary encoder and LCD screen.

    An Arduino Nano provides the brains for this operation, and each component is poured using a series of three peristaltic pumps. Meanwhile, a load cell underneath the glass holder ensures that the correct amount of liquid is dispensed.

    The same setup could be used to make different three-ingredient drinks with a little programming work, or it could be expanded into a multi-drink unit with the addition of a few more pumps. You can see it in action below!



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    Website: LINK

  • Create a beat by nodding your head

    Create a beat by nodding your head

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    Create a beat by nodding your head

    Arduino Team — December 11th, 2017

    If you are really enjoying a song, you may start to bob your head to the tunes, but what if you could instead create actual music with this subtle movement? That’s exactly what Andrew Lee’s “Nod Bang” system accomplishes.

    An accelerometer mounted to a pair of headphones senses nods in order to dictate the beat, while four 3D-printed arcade buttons are used to select which sounds will be played. An Arduino takes these inputs and passes them to a computer via a MIDI USB interface. The board also controls lights on the buttons for visual feedback.

    Be sure to check it out in action below and read Lee’s entire write-up here.



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    Website: LINK

  • Santa’s Shop is an animated storytelling installation

    Santa’s Shop is an animated storytelling installation

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    Santa’s Shop is an animated storytelling installation

    Arduino Team — December 7th, 2017

    Santa’s Shop is an amazing Christmas display consisting of trains, animated figurines, a rotating tree, and several other interesting holiday-themed gadgets.

    The decoration features hundreds of 3D-printed parts and many handmade characters, controlled by 46 servos and a total of 12 Arduino boards. Bringing the installation to life was no small task, requiring over 2,000 hours of labor for creators Mike and Annelle Rigsby.

    More details on the project can be found in this write-up. You can also see it in action in the video below, or on display live in the window of the Brightway Insurance Agency in Gainesville, Florida this month.



    This entry was posted by Arduino Team on Thursday, December 7th, 2017 and is filed under Arduino, Featured. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

    Website: LINK

  • The Imperializer makes quick work of metric conversions

    The Imperializer makes quick work of metric conversions

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    The Imperializer makes quick work of metric conversions

    Arduino Team — December 6th, 2017

    When you work in a machine shop, you often need to convert numbers from metric to imperial. As long as you have to do this on a regular basis, why not make a tool to do so easily?

    Instead of pulling out a phone or taping a calculator to their CNC machinery, NYC CNC came up with an Arduino Nano-based device that does this conversion in style. “The Imperializer” features a beautifully milled enclosure that magnetically sticks onto a machine, a backlit LCD, and a toggle switch to flip between metric and imperial units.

    The Imperializer is a desktop or machine mountable device that does one thing: converts inches to millimeters (and millimeters to inches)!  It uses an Arduino Nano and is powered by a Lithium battery that can be recharged with a Micro-B USB cable!

    If you’d like to have your own for your shop, the bill of materials and Arduino code can be found on the project page. The housing, and even a fully-assembled version, can be purchased here.



    This entry was posted by Arduino Team on Wednesday, December 6th, 2017 and is filed under Arduino, Featured, Nano. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

    Website: LINK

  • Build your own antenna rotator/satellite tracking device

    Build your own antenna rotator/satellite tracking device

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    Build your own antenna rotator/satellite tracking device

    Arduino Team — December 5th, 2017

    After finding that purchasing a tracking device for his satellite dish would be quite expensive, YouTuber “Tysonpower” decided to simply build one himself. What he came up is an assembly made with 3D-printed parts and extruded aluminum that uses a pair of NEMA23 stepper motors for movement.

    While it doesn’t quite work with the dish itself due to its offset weight, the concept was successfully used to track weather satellites using a VHF Yagi antenna.

    Control is provided via an Arduino Nano, which interfaces with a computer over USB serial that provides satellite information. You can check it out in the video below, and find more details in the project’s write-up.



    This entry was posted by Arduino Team on Tuesday, December 5th, 2017 and is filed under Arduino, Featured, Nano. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

    Website: LINK

  • A chronograph rig for high-speed glass photography

    A chronograph rig for high-speed glass photography

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    A chronograph rig for high-speed glass photography

    Arduino Team — December 5th, 2017

    To capture images of bullets “interacting” with various objects, photographic hacker Tyler Gerritsen created an impressive chronograph rig, able to measure the speed of a bullet launched from a rifle at 1000 meters per second. While the concept of measuring time from one sensor to another isn’t new, implementation at this speed required some interesting tricks.

    To accomplish this feat, Gerritsen designed his own sensor array using photodiodes in a reverse-biased setup, and even calibrated the clock speed of the Arduino Uno for control in order to account for any variation. Finally, the time between triggering a flash and light actually appearing had to be compensated for in the code, a different value for each type of equipment.

    The project write-up is a great read for anyone interested in this type of photographic or measurement technique, and the resulting photos can be seen here.



    This entry was posted by Arduino Team on Tuesday, December 5th, 2017 and is filed under Arduino, Featured, Uno. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

    Website: LINK

  • Come and visit Arduino at Maker Faire Rome this weekend!

    Come and visit Arduino at Maker Faire Rome this weekend!

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    Come and visit Arduino at Maker Faire Rome this weekend!

    Arduino Team — November 30th, 2017

    Starting tomorrow, Friday, December 1st, the Arduino team will be exhibiting at the 5th annual Maker Faire Rome – The European Edition. Those heading to Rome over the weekend (December 1st -3rd) are invited to swing by our booth at Pavilion 7 (Interaction) and join us for some inspiring talks. This year, Arduino will also be operating the official Maker Shop with plenty of products and ideas that can help you find original gifts for the holiday season.

    The Booth

    We’ve been preparing a series of demos for adults and kids at the booth to showcase the new Arduino Education products and programs, as well as the latest developments of the MKR family boards and IoT solutions. Moreover, you’ll have the opportunity to learn more about the AUG (Arduino User Group) Program, meet the winner of the Arduino MKR FOX 1200 Contest, and play with an interactive installation by Supsi University!

    The Store

    At Pavillon 7 (close to the Arduino booth), there will be a Maker Shop by Arduino selling most of the Arduino products (including the recently announced Arduino MKR WAN 1300 (LoRa) and Arduino MKR GSM 1400). You’ll also find some other interesting kits and holiday gift ideas for kids, makers and developers, plus a selection of Arduino goodies.

    Talks

    Our team will even be a part of Maker Faire Rome’s program with several talks and presentations on Arduino innovations, new products, and partnership programs. The schedule is as follows: 

    We look forward to seeing you all at Pavilion 7! (Check out the Maker Faire map here.)



    This entry was posted by Arduino Team on Thursday, November 30th, 2017 and is filed under Arduino, Events, Exhibition, Featured, MakerFaire. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

    Website: LINK

  • Create the smart home gadget of the future with Alexa and Arduino

    Create the smart home gadget of the future with Alexa and Arduino

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    Create the smart home gadget of the future with Alexa and Arduino

    Arduino Team — November 21st, 2017

    We’re excited to announce a new challenge with Amazon Alexa and Hackster.io, which invites the Arduino community to design the smart home gadgets of the future.

    Makers have already come up with exciting ways to integrate Alexa and Arduino into their projects, from talking teddy bears and singing animatronic fish, to voice-controlled blinds and holiday decorations, to robotic coffee machines and drink mixers. And now, we want to see what next-generation devices you can come up with. Personalized lighting? Room temperature automation? Security and doorbell systems? Pet toys and feeders?

    Contest winners will be awarded with prizes that can help take their ideas from prototype to product through Dragon Innovation’s certification process, Kickstarter coaching sessions, cash, and more.

    The Best Overall Alexa Smart Home Skill & Gadget winner will receive a prize package valued at $29,000:

    • $14,000 cash
    • Kickstarter Package: Promotional video and marketing fund
    • Dragon Innovation Certification
    • A 60-minute Kickstarter coaching session

    Want to learn more about the Alexa and Arduino Smart Home Challenge? You can find a full list of prizes and rules here.



    This entry was posted by Arduino Team on Tuesday, November 21st, 2017 and is filed under Arduino, Competition(s), Featured. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

    Website: LINK

  • Antique grandfather clock retrofitted with Arduino control

    Antique grandfather clock retrofitted with Arduino control

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    Antique grandfather clock retrofitted with Arduino control

    Arduino Team — November 20th, 2017

    When you see a mechanical clock, you know on some level that it took a vast amount of expertise and craftsmanship to get working, but you might also assume that this could all be swapped out very easily with modern electronics. While this might be the case with a clock that only tells time, as David Henshaw shows with his project, once you add in extra features like a moon phase, date indicator, and chimes, things get complicated quickly.

    Henshaw began by purchasing an 1847 vintage clock from England without the movement—the parts that actually it tell time. He then replaced the mechanical assembly normally found inside with stepper motors, sensors, an Arduino Uno, and a variety of other wires and bits.

    You can see the retrofitted grandfather clock in action below, while the build process (which took the better part of a year) and Arduino code he used are outlined on his website.



    This entry was posted by Arduino Team on Monday, November 20th, 2017 and is filed under Arduino, Featured, Uno. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

    Website: LINK

  • Building an 8-step keyboard sequencer with Arduino

    Building an 8-step keyboard sequencer with Arduino

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    Building an 8-step keyboard sequencer with Arduino

    Arduino Team — November 20th, 2017

    Sequencers, as YouTuber “LOOK MUM NO COMPUTER” explains, are musical devices that go through a sequence of tones one by one. While this can be done quite simply with a 4017 counter chip, if you instead substitute in an Arduino board for the counter, you can make your gadget behave normally, go backwards, or even act as a sort of keyboard using input buttons.

    This particular project employs a Nano for control, giving it a conveniently small form factor to fit inside your equipment.

    Since the start of building modular synths, ive always been looking for an arduino powered sequencer. but never really happy with the projects that were about. because it was still menu dives and button combinations. which is not what you wanna be messing about with! you may aswell use a computer and a mouse ha.

    Be sure to check out LOOK MUM NO COMPUTER’s entire build process and a demo of the keyboard sequencer in the video below. You can also find circuit diagrams and Arduino code in the project’s write-up here.



    This entry was posted by Arduino Team on Monday, November 20th, 2017 and is filed under Arduino, Featured, Music, Nano. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

    Website: LINK

  • DIY vending machine with Arduino

    DIY vending machine with Arduino

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    DIY vending machine with Arduino

    Arduino Team — November 17th, 2017

    Have you ever wanted a vending machine for snacks but didn’t know where to start? With an Arduino Mega, some motors, and an infrared sensor to detect coins, Dejan Nedelkovski decided to build his own using only hand tools.

    The DIY vending machine’s structure is made out of MDF, and uses wires bent into helical shapes to twist items out of four storage spaces with continuous rotation servos. While they could just drop to the bottom, Nedelkovski added a little extra flair and constructed an elevator system powered by stepper motors to gently lower the chosen treat to the exit opening.

    You can see the project in action below, and find more details in Nedelkovski’s write-up here.



    This entry was posted by Arduino Team on Friday, November 17th, 2017 and is filed under Arduino, Featured, Mega. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

    Website: LINK