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Wednesday, November 14, 2012

Magnetic Loop Antenna controlled by Arduino and infrared

Magnetic Loop Antenna controlled by Arduino and infrared Tube. Duration : 7.25 Mins.


This video presents a Magnetic Loop antenna controlled by an Arduino. The controller system receives a command via infrared transmitter similar to a TV remote control. There is a circuit responsible for the infrared receiver coupled to the Arduino. Every action performed on the remote control is sent to the Arduino and treated by a program I developed specially to control the stepper motor. That way I can move the capacitor clockwise and counterclockwise. The current level demanded by the stepper motor is high, you can not control it directly from the Arduino. To solve this problem, I used a circuit based on the ULN2003. To facilitate programming for the infrared receiver and the stepper motor, I used the public libraries for irRemote and Stepper (see references). With them I saved several lines of code. My Magnetic Loop antenna was based on models collected on the Internet. In particular, I used the instructions and tips from Alex (PY1AHD), which sells this kind of antenna with a better look than showed in this video (see www.alexloop.com See also "Antenna Tuner controlled by Arduino and Android via bluetooth" - youtu.be References: www.arduino.cc www.alexloop.com github.com www.botskool.com You can see more about Magnetic Loop Antennas accessing these URLs: www.dxzone.com www.nonstopsystems.com More videos: www.youtube.com www.youtube.com www.dxzone.com

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