About: I am an inventive photographer, Pilot, and MacGyver. I love building and modifying things to aid in my adventures. Check out my Website! Have a great day!

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I developed this downed aircraft alarm after having a "fly away" with one of my drones. This system will function on almost any RC model.

The system runs off of a 9-volt battery and is triggered by a loss of signal (or power) on a ready to fly aircraft, or can be controlled by the auxiliary channel on your remote (signal loss or a manual switch will set off the alarm).

The battery will last for over 150 hours (physical test completed at 21 degrees celsius). Since the power system is separate from the aircraft, the alarm will function during a complete system failure.

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For this instructable you will require:

An Arduino Nano

Two Piezo Alarms

Jumper Wires

Bread Board (All above available http://www.gearbest.com/kits/pp_244840.html)

Prototyping Board (http://www.gearbest.com/development-boards/pp_153862.html)

Scrap Wire

Female Arduino Pins (http://www.gearbest.com/diy-parts-components/pp_23...)

A Soldering Iron and High Tech (super fine) Solder

Use the coupon code "FDSHFS" to save an additional $5 from Gear Best!

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The Quadcopter Used in this instructable ins Syma X8W. Available here:

http://www.gearbest.com/rc-quadcopters/pp_193218.html

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