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Doorman Arduino prototype

Doorman Arduino

Doorman Arduino is an open source project that controls the doors of your house. It uses a network connection and an Arduino to accomplish this function. As in domotic appliances, the main goal is to be in control of all your entrances (main door, garage door,…). On top of that, our goal is to achieve this functions without the need of any specialized software on the client side. A web browser is the only requirement to be able to control all the doors. Continue Reading →


Arduino Artnet sender keyboard for MA2

It’s been a year since last time I build a project for myself, just for fun. And I tough that I should finally build that old project that I had in mind long time ago but never had time to. I’m talking about my idea of converting and old PS2  keyboard into an Arduino Artnet broadcaster. People in the lighting buisness will apreciate the idea because we have alwas the need of more buttons more faders to control every single aspect of the lighting system. So this project extends our interface using artnet and on the cheap! The logic behind is very simple. We have a lighting system wich is composed by inteligent lights in one side and a control system in the other. Normally the comunicacion betwen both is done via a DMX cable. But many of the lighting controller nowadays have extra inputs in form of DMX inputs, MIDI, analog and/or Artnet. I will be using the last one (artnet) to, trough the keys of the keyboard, trigger functions on our lighting desk. In my case the GrandMA2 onPC software. Continue Reading →


Stepper motors and Arduino

Back in the 80s steppers where commonly used in most consumer products requiring precise control of moving pats. That’s why old printers, typewriters, faxes are a great source of still usable stepper motors waiting for somebody to give them a use.

Controlling Stepper motors with arduino have been always a good way of having things precisely positioned at all times. Their way of working is pretty simple, you send electronic pulses and the stepper motor moves one step degree at a time (hence the name “steppers”). So if we know how many steps we can do in 380 degrees we will know how many degree we move in one step. Then we can keep track of the position or angle of our stepper motor.

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Seed Counter 2nd prototype

Building 1

We have been testing hardware and developing new software for our prototype of seed counter. It’s been a while but after all, we have come across of what we think its a much better solution.


The old seed counter prototype had a major problem and was that the counter itself was not reliable enough. Most of the time would work good but some times would pick 2 seeds instead of one. That was because all the seeds where piled in the deposit where the rotating wheel would pick the seed. When the wheel of the seed counter rotated to pick a seed sometimes would pick more than one or even throw all the seeds right above the one that got picked. Continue Reading →


Arduino ethernet, the great internet of things

It’s been a while since I had the idea of an Arduino receiving and sending data trough the Internet. Long time ago I picked up a simple RGB led, an arduino Ethernet shield, put some pieces of code together and I was able to receive information from a website and convert into light and colour.

I built a custom XML parser for Arduino ethernet and some simple functions for changing the color and fade the leds. Just enough freedom to decide what information gather and how to show it. Colors, blinks, fades. All I had was just an RGB led, not even a button. So the interface was pretty simple.

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The peroformance

Volumetrically light project with arduino

Volumetrically light is an installation that uses the light as a tool to draw volumes into the space. Installed in a closed room where spectators can enter and directly interact with it with a series of sensors. All the process is completely automated and there is no “master” needed to operate the installations.

Sensors and logics can be changed and adapted to the final space, so we can sense various parameters directly related to the audience as movement, temperature, light and sound.

The spectator observes how volumes change together with the sound and the ambient light trough the volume of the space. Continue Reading →


Encounters with Arduino workshop

This is the first time we are presenting this modality of arduino workshop as “encounter with Arduino”. The first of a series of encounters around the globe and the first experience we are having organizing an event like this. The encounter is presented as a free and open event in which participants bring their own ideas and build their projects, alone or in groups, no matter if it’s the first time you see an Arduino board or you have been working with it for years.

As initiation for those whom are starting for the first time with Arduino, there are a series of examples to build in order to understand the interface, the hardware and the way of programming. These are easy yet functional prototypes that can be built with the components included in the KIT of the encounter. Among these examples we can find projects like: Virutal traffic lights, Light meter, Quichen countdown clock, IR receiver, …

New encounters will follow in Holland and Spain, stay tuned!

Below you can find all the information about the encounter with Arduino in Cordoba, Argentina. Continue Reading →