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There are two kinds of people in the world (and, no, this isn’t a binary joke). People who love the Arduino, and people who hate it. If you’ve ever tried to use a standard prototype board to mount on an Arduino, you’ll know what kind of person you are. When you notice the pins aren’t on 0.1 inch centers, you might think, “What the heck were those idiots thinking!” Or, you might say, “How clever! This way the connectors are keyed to prevent mistakes.” From your choice of statement, we can deduce your feelings on the subject.

[Rssalnero] clearly said something different. We weren’t there, but we suspect it was: “Gee. I should 3D print a jig to bend headers to fit.” Actually, he apparently tried to do it by hand (we’ve tried it, too). The results are not usually very good.

He created two simple 3D printed jigs that let you bend an 8-pin header. The first jig bends the correct offset and the second helps you straighten out the ends again. You can see the result in the picture above.

[Rssalnero] notes that the second jig needed reinforcement, so it is made to take 8 pins to use as fulcrums. Probably doesn’t hurt to print the jigs fairly solid and using harder plastic like ABS or PETG, too. Even if you don’t have a 3D printer, this is about a 15 or 30 minute print on any sort of reasonable printer, so make a friend. Worst case, you could have one of the 3D printing vendors make it for you, or buy local.

We love little tool hacks like this. If you are too lazy to snap 8 pins off a 40 pin strip, maybe you’d like some help. If you’d rather go with a custom PC board, you might start here.


Filed under: Arduino Hacks, tool hacks

Blood glucose monitors are pretty ubiquitous today. For most people with diabetes, these cheap and reliable sensors are their primary means of managing their blood sugar. But what is the enterprising diabetic hacker to do if he wakes up and realizes, with horror, that a primary aspect of his daily routine doesn’t involve an Arduino?

Rather than succumb to an Arduino-less reality, he can hopefully use the shield [M. Bindhammer] is working on to take his glucose measurement into his own hands.

[Bindhammer]’s initial work is based around the popular one-touch brand of strips. These are the cheapest, use very little blood, and the included needle is not as bad as it could be. His first challenge was just getting the connector for the strips. Naturally he could cannibalize a monitor from the pharmacy, but for someone making a shield that needs a supply line, this isn’t the best option. Surprisingly, the connectors used aren’t patented, so the companies are instead just more rigorous about who they sell them to. After a bit of work, he managed to find a source.

The next challenge is reverse engineering the actual algorithm used by the commercial sensor. It’s challenging. A simple mixture of water and glucose, for example, made the sensor throw an error. He’ll get it eventually, though, making this a great entry for the Hackaday Prize.

The HackadayPrize2016 is Sponsored by:

Filed under: Arduino Hacks, The Hackaday Prize

1sheeld

Have you ever thought of turning your iPhone and iPad into a platform of more than 40 Arduino shields? Now it’s possible!

The team of 1Sheeld have officially released the new 1Sheeld for iOS and it’s available for pre-orders for $39 instead of it’s original price $55 (shipping on May 2016).

You can  control robots, actuators, display sensors’ data and much more.  Take a look at the demo video:

Ever wanted to own your own Theremin but couldn’t justify dropping hundreds of dollars on one? Now you can build your own, or buy it for a quintuplet of Hamiltons. The Open.Theremin.UNO project has built up antenna-based oscillator control around the ubiquitous Arduino Uno board.

So what’s the Arduino in there for? This is a digital Theremin, but check out the video below and you’ll agree that it sounds amazing and has excellent response. The aluminum antennas used for volume and pitch are attached to the top portion of the shield but it sounds like they’re not included in the kit. Don’t fret, you can use a variety of materials for this purpose. On the bottom you need to connect a speaker cable, and also a ground wire if that cable’s not grounded.

As the name implies, this is Open Hardware and we’re quite happy with the documentation on their site and the BOM (found on the GitHub repo). This design was shown off back in 2013 hiding in a pack of cigarettes. If you don’t want to build your own they’re selling kits on their site for 48 Euro delivered, or on Tindie for $55.

Okay, we’ve screwed this up so many times that we’re going to try to get it right here: the Theremin was not heard in the opening of Star Trek the original series, or in the opening of Doctor Who. It wasn’t featured in “Good Vibrations” either. As far as we can tell, it’s not used for anything in pop culture at all… but recognizing the sound and knowing what one is remains core geek knowledge.

If you want a Theremin to play using your entire body you need the Theremin Terpsitone.

[via Open Electronics]


Filed under: Arduino Hacks, musical hacks

openthereminuno_v2_web

Open.Theremin is an open source hardware and software project by Urs Gaudenz of  Gaudi Lab with the aim of building the next digital generation of the legendary music instrument developed in the ’20s by the Russian inventor professor Leon Theremin. The project is documented under a open license and uses Open.Theremin.UNO, an Arduino  or Genuino Uno shield featuring a digital mixer, combined 12 bit audio and CV out, audio jack on the bottom for more compact design, two completely separate antenna circuits:

The theremin is played with two antennas, one to control the pitch and one for volume. The electronic shield with two ports to connect those antennas comprises two heterodyne oscillators to measure the distance of the hand to the antenna when playing the instrument. The resulting signal is fed into the arduino. After linearization and filtering the arduino generates the instruments sound that is then played through a high quality digital analog audio converter on the board. The characteristics of the sound can be determined by a wave table on the arduino.

Most theremins on the market are either expensive or then not really playable. That’s how I decided to design a playable, open and affordable theremin. The first version was modular and difficult to program. Then I decided to redesign it as a shield to fit on the Arduino.UNO. This was a big success and many people could start using it, change the sounds and adapt it to their own application. The whole design is open source and documented on the website. I produced a small batch of the shield that can be bought through the small batch store on the website.

Watch the video below with Coralie Ehinger, a Swiss theremin player and organizer of the first Swiss theremin festival N / O / D / E, playing the instrument:

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We are excited to announce Arduino Wifi Shield 101 developed with Atmel is now available for purchase on the Arduino Store US (49.90$).

Arduino WiFi Shield 101 is a powerful IoT shield with crypto-authentication that connects your Arduino or Genuino board to the internet wirelessly. Connecting it to a WiFi network is simple, no further configuration in addition to the SSID and the password are required. The WiFI library allows you to write sketches which connect to the internet using the shield.

The shield is based on the Atmel SmartConnect-WINC1500 module, compliant with the IEEE 802.11 b/g/n standard. The WINC1500 module provided is a network controller capable of both TCP and UDP protocols.  The main feature is an hardware encryption/decryption security protocol provided by the ATECC508A CryptoAuthentication chip that is an ultra secure method to provide key agreement for encryption/decryption, specifically designed for the IoT market.

Last year, Massimo Banzi introduced the shield:

“In this increasingly connected world, the Arduino Wi-Fi Shield 101 will help drive more inventions in the IoT market. Expanding our portfolio of Arduino extensions, this new shield can flawlessly connect to any modern Arduino board giving our community more options for connectivity, along with added security elements to their creative projects.”

The WiFi Shield 101 is the first Arduino product fully supporting SSL and all the communication between your board and our secured server. With the power of the Arduino Zero and the WiFi Shield 101 it is possible to make secure IoT applications simply and just using the Arduino Language.

A working example and instructions on how to get started are available on Arduino Cloud, a work-in-progress project that gives you access to a pre-configured MQTT server for your IoT sketches using only your Arduino account. More examples and features will be available in the next months.

Feel like knowing more about the shield? Explore the  Getting Started guide.

diyJukebox

DIY Jukebox is a project made by Mario Pucci to show how Arduino Uno, NFC Shield and Python can be used to build a real jukebox. NFC means Near Field Communication and the NFC shield can perceive objects attached to little chips called NFC tags containing specific messages. In this project, Marco programmed each chip to play a different music genre when the tag is inserted in the cardboard jukebox:

You can download the file of the cardboard Jukebox at this link and the sketches here.

The steps of the tutorial are in italian but you can use google translate if needed! Enjoy the sound of music :)

jukebox_paper1

IMG_6024Shields are great for connecting external circuits to your microcontroller board. In this project, you'll learn to make your own custom shields for Arduino.

Read more on MAKE

The post How to Make Custom Shields for Your Microcontroller Board appeared first on Make: DIY Projects, How-Tos, Electronics, Crafts and Ideas for Makers.

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Arduino CNC Shield – 100% GRBL Compatable

arduino, CNC, grbl, RaspberryPi, shield Commenti disabilitati su Arduino CNC Shield – 100% GRBL Compatable 

arduino-cnc-shield

by protoneer.co.nz:

We have designed the Arduino CNC Shield to use all the pins that GRBL implemented. We have also added a few extra pins to make things a little easier. GRBL is opensource software that runs on an Arduino Uno that takes G-Code commands via Serial and turns the commands into motor signals. Now compatible with Raspberry PI.

Arduino CNC Shield – 100% GRBL Compatable – [Link]

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HamShield for Arduino (VHF/UHF transceiver)

arduino, ham, radio, shield Commenti disabilitati su HamShield for Arduino (VHF/UHF transceiver) 

hamshield

HamShield lets your Arduino talk to far away people and things using amateur radio bands (Coverage: 136-170MHz, 200-260MHz, 400-520MHz)

HamShield lets your Arduino talk to far away people and things using powerful amateur radio bands! Best of all, the hardware and software is open source!

With the power of Arduino, you can use the HamShield to build and invent amazing things in minutes!

HamShield for Arduino (VHF/UHF transceiver) – [Link]



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