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3Dpad is an innovative and experimental system that you can use for creativity, experiments and education.
The underlaying technology is patented and can be used freely under Creative Commons licenceCCBY-NC-SA.
It consists of a sandwich made up of:
a PCB called an electrode plane (1)
an Arduino Shield (2)
an Arduino Uno (3) - *not included, you should use your own Arduino
Detection principle:
To detect the proximity of the human hand or finger, we are using the projected capacitive technique. This is the principle of virtually all modern touch screens - except that now we are in the air, relatively far away from the detector surface (10 cm max).
Itrsquo;s very simple: We build capacitors which are as ldquo;openrdquo; as possible, using electrodes drawn on the electrode plane PCB in order to obtain a maximum ldquo;hand effectrdquo;.
The capacitors formed by the electrodes are part of an oscillator whose frequency is influenced by the distance of a hand. When it enters the electrostatic field, this ldquo;intruderrdquo; is going to cut the field lines and divert the electrical charges.
Result: the closer the hand approaches the electrodes, the more the oscillatorrsquo;s frequency increases.
The embedded software
The sketch running on the Arduino UNO will exploit the analog result in order to:
Calculate 3D coordinates
Recognize basic gestures (swipes, push and rotations)
Send it all to a host device on the USB COM port
The evaluation software
Despite the fact that everything is calculated on the Arduino board, it can be usefull for you to have a software for a quick evaluation of 3D-Pad.
It#39;s available in the form of a VB6 which (often) accepts to be installed under Windows. There is also a new one, made with Processing. This is more confortable and runs under Windows, Linux an MAC-OS X. You#39;ll see all the values sent by the Arduino Uno, the gesture events and the 3D coordinates in the form of a cursor.
Whatrsquo;s it used for
3Dpad#39;s technology can be used in a very wide field of applications, for instance: medical amp; healthcare (should reduce the nosocomial risk), household appliance control (think at cooking when your hands are covered of fat content), gaming with air control, and many other.
At the moment my favorite app is music, using 3Dpad as an 3D Air control MIDI controller.WatchourfirstexperimentVideo
Questions / Answers :
What are the possibilities for hiding the 3D-pad behind different materials The electrode plan PCB can be covered with glass, plastic, ceramic, wood, textile, or any other insulating materialSeeitinthisvideo
Who designed the 3Dpad 3Dpad is based on my own invention (I#39;ve got granted patents on it). The current version in the form of an Arduino shield has been designed in collaboration with theElektorLabs. A full description is available in theElektormagazine-May2014edition.
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Tutti i marchi citati sono di proprietà delle rispettive case e produttori.
Informazioni aziendali
ROBOT DOMESTICI SRL - Via Cornelio Labeone, 70 - 00174 Roma (RM)
Partita IVA IT15791431008 - REA di Roma n. RM 1614298
CODICE FATTURAZIONE ELETTRONICA: KRRH6B9
Tel. (+39) 06 76971136 | e-mail: info@robot-domestici.it