Tag Archives: arduino

Fifty speakers for an interactive sound sculpture

via Arduino Blog


Hive (2.0) is the second iteration of an interactive sound sculpture consisting of fifty speakers and seven audio channels. The sensors detect the proximity of people and Arduino manipulates audio according to it.


It was created by Hopkins Duffield, a Toronto-based collaborative duo exploring ways to combine both new and familiar mediums with artistically technological practices. In this work they used Arduino Uno together with Max 6 / Max For Live.
Check the video to listen to the sculpture:

An Arduino at Heart prototyping board you can DIY

via Arduino Blog

Newtc Prototyping board

Newtc is our latest partner joining the Arduino At Heart program with three new products of the same family.

The Prototyping Board by Newtc is an Arduino At Heart coming in a couple of versions: the DIY version you can assemble and solder yourself and the Assembled version ready to be used. The CPU of the boards ( ATMEGA328P-PU ) is already burned with Arduino Uno bootloader. In addition to the boards, Newtc provides also the Arduino At Heart USB to Serial uploader for Arduino compatible boards.

In the picture below you can see the components of the DIY Version and in the video you can follow the tutorial and learn how to assembled it!


Workshop and talk with Massimo Banzi in Paris #ArduinoTour

via Arduino Blog


At the beginning of February Massimo Banzi, Arduino co-founder will be in Paris at  ENSCI Les Ateliers for a presentation and a workshop. The Arduino Tour in Paris starts on the 6th of February with a talk followed by a Q&A. (book your ticket here)

On Saturday 7th, and Sunday 8th you can take part to two 8-hour sessions of workshop totally dedicated to the basic steps to undertake with Arduino. The workshop is suitable for beginners, designers, teachers, artists, hackers, and everyone interested in Arduino (no prerequisites needed).

The participation is available for a max of 20 people: you can check details and book your ticket here


Arduino mods make Moog’s Werkstatt Synth even more fun

via Arduino Blog


The Moog Werkstatt-Ø1 is a patchable, 100% little analog synthesizer whose design is based on classic Moog circuits. It was created as an educational tool for teaching electronics assembly and analog circuit design. Recently a series of tutorial projects appeared on Werkstatt website, featuring the use of the Arduino Uno to mod and create effects using  different sensors and components:

We used the Arduino UNO R3 for all mods, and the Moog Werkstatt Arduino Library was written specifically for it. Other micro-controllers with similar bootloaders (Teesnsy, Seeeduino, etc) have not been tested but could work. The Arduino features a USB interface, 6 analog input pins, and 14 digital I/O pins.

The 5 tutorials have also series of videos that demo each mod. For example, they integrated an accelerometer to measure movement in three dimensions:

And they added an arpeggiator/sequencer function:

Check them all >>  And add your own mod!

Make a 3D printed LEGO-compatible Arduino Micro casing

via Arduino Blog


Here we are after winter break with a new tutorial on 3d printing with Arduino Materia 101. The 5-step tutorial allows you to design a Lego-compatible case for the Arduino Micro to be used together with the power function IR-receiver mentioned in this other Tutorial.

During the lesson you’ll learn also how to make the Lego-compatible pieces accurately and easily with FreeCAD without taking all the measurements!

Follow the steps and print yours >>


Check the previous tutorials on 3d printing with Material 101

Interested in getting in touch and showing your experiments? Join Kristoffer on the Arduino forum dedicated to Materia 101 and give us your feedback.

Recently Arduino user Botberg implemented an auto-levelling bed sensor  to be  sure that the placement of the first extrusion layer is placed well and increasing the printer successes!


What have you built with Arduino? Interview 10&11 #MFRome14

via Arduino Blog


Maker Faire Rome video interviews – “What have you built with Arduino?” – A couple of new protagonists for our short series:

  • Collective City Memory – Wearable Arduino Tech, university project by Assunta Matassa
  • Insettoteca – Remote-controlled Terrarium by Hacklab Terni


Explore playlist on Youtube >>

A “cool” project based in the most southern location ever!

via Arduino Blog


At the end of last year we received an email on our support center from an unusual location. It was sent by Giovanni Bianchini an italian physicist researching at Concordia Station, located in East Antarctica (see the red dot in the map below!) where the hottest temperature is around -25C?/-13F. He was working on a project based on Arduino and yes, this is the Arduino project based in the most southern location ever! When we realized that we thought of getting in touch with him and discover the details.

Giovanni was very happy to start a conversation with us, shared  some pictures and explained  why and how he is using Arduino in Antartica.

 Tell us a bit more about Concordia Station and what you are doing there…

 Concordia Station is a scientific research base placed more or less in the middle of the plateau region, East Antarctica. This site is peculiar for the fact of being surrounded of at least 1000 km of ice plain in every direction, a condition that provides relatively stable and unperturbed weather conditions and a dry and very transparent atmosphere, that is the reason for which it has been chosen for astronomic and atmospheric observations.

The downside is isolation: the nearest emplacement is the russian Vostok base, at a mere 700 km, while the italian and french bases on the coast, that are the intermediate stops for the researcher coming to Concordia, are both at more than 1000 km. Usually coming to Concordia involves a 7-8 hours flight from Christchurch (NZ) to the italian “Mario Zucchelli” or the US “Mc Murdo” bases and a second 5 hours flight to Concordia. In alternative it’s possible to reach the french Dumont D’Urville base from Hobarth (AU) with a 7 days (more or less, much more than less…) cruise on the “L’Astrolabe” ship, and fly to Concordia. Since every stop in a base usually involves one or more days of stop, depending on the weather conditions, reaching Concordia is somewhat an adventure itself…


What is your job at the station?

Most of the instrumentation operating in Concordia is installed in some “shelters” placed some hundreds of meters upwind from the base, in order to sample unperturbed air. The shelters are put on elevated platforms to prevent snow accumulation, and are heated and connected to the base LAN, so the instrumentation can be remotely operated.

Specifically I work on atmospheric physics, and in the past two year I am responsible of a scientific project (Concordia Multi-Process Atmospheric Studies) that involve several instruments performing vertical remote sensing of atmospheric properties. The setup include two LIDARs, one SODAR, and an infrared spectroradiometer (Radiation Explorer in the Far-Infrared – REFIR).

All this instrumentation is installed in the Physics shelter, and operates continuously, even during the winter period, in which the base is completely isolated for almost 9 months and is crewed by only 12 persons. This implies that the instruments operating during winter should require the least attendance possible from the reduced crew, and possibly should be remotely accessed from Italy for checking and maintenance.


How are you using Arduino at the base?

While the shelters are quite a comfortable workplace for researchers and technicians, they present a critical (and maybe unexpected) problem for the instrumentation: overheating. The small volume, good thermal insulation, high density of powered devices, united with the low heat transfer capacity of the very dry air inside, makes heat dissipation a difficult task.

 For this reason, the first application I found for an Arduino board in Antarctica has been a cooling system for the REFIR spectroradiometer.

This optical instrument features tens of optical components with critical alignment requirements, so in the past years every time the instrument was subject to a strong thermal cycle, it needed to be realigned.

The original design provided just a simple heater with an analog proportional control loop (go figure you had to heat things at the south pole). Luckily, providing cooling power was as simple as getting air from outside and sending it to the instrument box through a tube. A valve and a fan regulate the cool air flow according to the instrument temperature.

The old heaters, the flow valve (servo controlled) and the cooling fan all are controlled by an Arduino Uno board, with a simple proportional loop that allows a thermal stability of a few tenths of degree.

Using an Ethernet Shield, all the system parameters (temperature, setpoint, cooling and heating gain, valve position) can be monitored through a simple web interface that gives this kind of output:

thermal control
(commands: T, R, H, F, G, V, M, Z)
setpoint = 20.00
averages = 128
threshold = 0.10
fan_gain = 300
htr_gain = 200
valve_full = 0
valve_mid = 0
valve_zero = 38
temperature = 20.49
fan_drv = 118
htr_drv = 0
val_pos = 0

Parameters can also be set sending commands to the web server on the arduino board, for example, the command:

changes the setpoint temperature to 21.0 C

How does it work?


(see picture above) The yellow pipe  goes through the floor to get cool air from the outside, with a manual emergency valve and the servocontrolled flow control valve (the black block below the white box).

The white box connects the pipe to a standard 8cm computer fan that blows the air inside the instrument enclosure. the control system is also inside the instrument box, the green led indicates cooling in progress.


The custom shield (see pic above) is used to interface the Arduino with the various system components. The big transistor (2N3904) drives the cooling fan, the two smaller ones (2N2222) control the green/red led that signals cooling or heating. The voltage regulator provides the ~8v needed by the arduino board (could work without, but at 12v it overheats a lot…)

The heater is made by three transistors in series mounted on heat sinks with a small fan each, and is driven directly by a digital output pin on the arduino, the servo on the flow valve is also driven directly by a pwm output.

Download the Arduino Sketch here.


What have you built with Arduino? Interview 8&9 #MFRome14

via Arduino Blog


Maker Faire Rome video interviews – “What have you built with Arduino?” – A couple of new protagonists for our short series:

  • Zaho – Print your own megastructure – Controlled by Arduino
  • Eco Floppy Robot – Robot controlled by Arduino

Explore playlist on Youtube >>

What have you built with Arduino? Interview 6&7 #MFRome14

via Arduino Blog


Maker Faire Rome video interviews – “What have you built with Arduino?” – A couple of new protagonists for our short series:

  • Biopic Agriorto – Agricultural Plantation using Irduino / Arduino

  • UniRoma 2 – Interview with automation engineering students using Arduino Due

Explore playlist on Youtube >>

What have you built with Arduino? Interview 4&5 #MFRome14

via Arduino Blog


Maker Faire Rome video interviews – “What have you built with Arduino?” – A couple of new protagonists for our short series:

  • Arduino controlled Exo-Skeleton – Interview with Mel Li (Ph. D) about her latest project
  • Vertical Automatic Garden – Automatic garden controlled by Arduino


See playlist on Youtube >>

Reverse-Engineering a Superior Chinese Product

via Hackaday » hardware

It makes an Arduino look like a 555.  A 364 Mhz, 32 bit processor. 8 MB RAM. GSM. Bluetooth. LCD controller. PWM. USB and dozens more. Smaller than a Zippo and thinner than corrugated cardboard. And here is the kicker: $3. So why isn’t everyone using it? They can’t.

Adoption would mandate tier after tier of hacks just to figure out what exact hardware is there. Try to buy one and find that suppliers close their doors to foreigners. Try to use one, and only hints of incomplete documentation will be found. Is the problem patents? No, not really.

[Bunnie] has dubbed the phenomenon “Gongkai”, a type of institutionalized, collaborative, infringementesque knowledge-exchange that occupies an IP equivalent of bartering. Not quite open source, not quite proprietary. Legally, this sharing is only grey-market on paper, but widespread and quasi-accepted in practice – even among the rights holders. [Bunnie] figures it is just the way business is done in the East and it is a way that is encouraging innovation by knocking down barriers to entry. Chinese startups can churn out gimmicky trash almost on whim, using hardware most of us could only dream about for a serious project.

He contrasts this with the West where only the big players like Apple and Google can step up to the plate. Everyone else is forced to use the embarrassingly obsolete hardware we are all familiar with. But [Bunnie] wants to get his foot in the door. “Can we find a way to still get ahead, yet still play nice?” he asks.

HAD - Gongkai XrayPart of his solution is reverse engineering so that hardware can simply be used – something the EFF has helped legally ensure under fair use. The other half is to make it Open Source. His philosophy is rooted in making a stand on things that matter. It is far from a solid legal foundation, but [Bunnie] and his lawyers are gambling that if it heads to a court, the courts will favor his side.

The particular board targeted is the one described above – the MT6260. Even spurred by the shreds of documentation he could gather, his company is a 2-man team and cannot hope to reverse engineer the whole board. Their goal is to approach the low-hanging fruit so that after a year, the MT6260 at least enters the conversation with ATMega. Give up trying to use it as a phone; just try to use like the Spark Core for now.

HAD - Gongkai BeachheadHe is already much of the way there. After telling you what is on board and why we would all want to use it, [Bunnie] shows how far he has gone to reverse engineering and describes his plans for the rest. From establishing an electronic “beachhead” base of operations to further probe the device, to X-rays, photos, diagrams and the beginnings of an OS. If this type of thing interests you at all, the meticulous approach and easy-reading of this tech teardown will surely impress and inspire you. Every step of progress requires a new hack, a new solution, a new ingenious way to pry information out.

We’ve featured some awe-inspiring reverse engineering attempts in the past, but this is something that is still new and relevant. Rather than only exploit his discoveries for himself, [Bunnie] has documented and published everything he has learned. Everyone wins.

Thanks [David] for the tip.

Filed under: Cellphone Hacks, hardware, slider, teardown

What have you built with Arduino? Interview 2 and 3

via Arduino Blog

Maker Faire Rome video interviews – “What have you built with Arduino?” – A couple of new protagonists for our short series:

  • Qtechknow –  Quin Etnyre and his new line of maker products

Programmable 3d-printed decorations for your Xmas

via Arduino Blog


We can’t miss the chance to play with some LEDs now that holidays are coming and mix some electronics with 3d printing on Materia 101.

In the tutorial of this Kristoffer is experimenting on Xmas decorations, Arduino Micro and some code to play around with.

The result is what you see in the picture below!
Do you want to make it too? Follow the steps on Scuola >>
Check the previous tutorials on 3d printing with Material 101

Interested in getting in touch and showing your experiments? Join Kristoffer on the Arduino forum dedicated to Materia 101 and give us your feedback.

7 brushless pumps for a fountain controlled by Arduino Micro

via Arduino Blog

Using Arduino Micro to control a fountain is the project shared by Michael Diesing on Twitter:

May I introduce my second ARDUINO-project with own pcb. With the pcb I am able to drive seven brushless pumps(with integrated electronics). The “problem” with such kind of pumps is that they don’t accept unfiltered pwm-signals as supply voltage. So I created a circuit where the pwm-signals of an ARDUINO-micro are level-shifted to 12V with a darlington array and afterwards filtered with a 1 uF ceramic capacitor and a 730 Ohm resistor (low pass filter). The signals are then led into the adjust-pins of seven “lm317″s. To work properly I needed to connect the adjust-pins also with 2500 Ohm resistors to gnd, but I found out that with two l293d instead of the used TDP62783 (darlington array) these resistors are not needed, but different resistor and capacitor values for adequate filtering!
The pums also have tacho signals which I connected via schottky-diodes to the ARDUINO (inputs with pullup). With the tacho-signals I am able to find out if pumps are stuck, are sucking air or are not connected.
Additionally I added one ACS712-05B current sensor (which measures the entire current of the circuit) that could be used to find out if pumps that don’t have tacho-signals are working properly. At the moment it is not used.
Besides that I integrated a lm386 audio-amp used to amplify the signal of an electret-mic to a level that is suitable for the ATEMGA’s ADC.

As the first project for the pcb I created a fountain consisting of a shortened wine barrel, seven brushless pumps, a pushbutton with led and pebbles (s. video).
There are seven animation-modes which can be selected via the pushbutton (the selected mode is stored in eeprom).
The speed of the pumps is checked permanently during operation.
The average power consumption is ~20W and max. consumption is 30W.

Discover the different modes to control it reading the description on youtube video.

Handy Arduino makes it on french television

via Arduino Blog


Last saturday, Arte tvl aired a short documentary in french language about Arduino. The video was created by FUTURE magazine and featuring Massimo Banzi, David Cuartielles and Arduino users: children and young electronics enthusiasts:

Tinkering in a garage on a drone, playing with a set of lights with LEDs or even build a robotic arm worthy of a science fiction movie … Today, even when one is a novice in electronics all this is possible through Arduino, a real flexible technology.

They also created two nice short info-animations to explain what is Arduino and the idea of open source: