Parrot AR.Drone Teardown

Teardown

Teardown

Teardowns provide a look inside a device and should not be used as disassembly instructions.

The AR.Drone is earth-shattering. It has blown away every drone expert we've talked to. It's not just a toy: it's a phenomenal piece of engineering that manages to solve some very difficult software problems in order to take flight. Hidden beneath the foam fascia lies some very sophisticated electronics, all of which makes flying the quadricopter very seamless. We were quite interested in seeing exactly what components Parrot used to make their awesome flying device.

This holiday season, let’s encourage repair and reuse rather than buying more things we don’t need and won’t last. With our friends at Wired, we’re running a toy repair contest. We’re giving away a ton of awesome tools, so make sure to get started on your entry right away!

2 Edit Step 1 Parrot AR.Drone Teardown  ¶ 

Image 1/2: What's cooler than one quadricopter? Two quadricopters, of course! The AR.Drone comes with two hulls: an indoor unit with guards over the propellers (grey/white) and an outdoor unit (orange/blue).

2 Edit Step 1 Parrot AR.Drone Teardown  ¶ 

  • The Parrot AR.Drone remote-controlled quadricopter recently landed on our teardown table.

  • What's cooler than one quadricopter? Two quadricopters, of course! The AR.Drone comes with two hulls: an indoor unit with guards over the propellers (grey/white) and an outdoor unit (orange/blue).

  • You might notice the lack of a controller with this awesome gadget. That's because the controls are managed via an iPhone, iPod Touch, or iPad by using AR.Free Flight, an application available for download in the Apple App Store.

  • Android users can now enjoy the AR.Drone Android app from the Market!

Edit Step 2  ¶ 

Image 1/2: The hull is attached to the body by a pair of  magnets; one in the hull and one on the body.

Edit Step 2  ¶ 

  • Talk about repair-friendly; opening up the AR.Drone doesn't even require a screwdriver. (Compare this with some recent devices we have torn down!)

  • The hull is attached to the body by a pair of magnets; one in the hull and one on the body.

  • Much of the AR.Drone's body is made of expanded polypropylene (EPP), a common substance that is both extremely light and easily manufactured into complex shapes.

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Image 1/2: The second connector is a balance charge connector, which ensures that each of the three battery cells is charging equally, thus optimizing capacity and prolonging battery life.

Edit Step 3  ¶ 

  • The 1000mAh 11.1V lithium polymer battery is attached via a connector, making it delightfully easy to remove.

  • The second connector is a balance charge connector, which ensures that each of the three battery cells is charging equally, thus optimizing capacity and prolonging battery life.

  • The battery contains a protection circuit module, which prevents it from discharging too rapidly, over charging, or short circuiting.

  • Parrot claims the battery will only last about 12 minutes after a full charge, which takes around 90 minutes. Taking your AR.Drone out to the park with only one battery won't get you much play time, unfortunately.

Edit Step 4  ¶ 

Image 1/2: After removing four T6 Torx screws, the lower plate can be lifted off to reveal the motherboard and navigation board.

Edit Step 4  ¶ 

  • Next, we turn to the underside of the quadricopter.

  • After removing four T6 Torx screws, the lower plate can be lifted off to reveal the motherboard and navigation board.

  • The navigation board is connected to the motherboard by eight pins and comes out without any hassle.

Edit Step 5  ¶ 

Image 1/2: The back side of the navigation board contains the [link|http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en530329|Microchip PIC24HJ16GP304] 40MHZ 16-bit microprocessor.

Edit Step 5  ¶ 

  • The two large mesh cylinders make up the ultrasound altimeter, which stabilizes the quadricopter within 6 meters of the ground.

  • The back side of the navigation board contains the Microchip PIC24HJ16GP304 40MHZ 16-bit microprocessor.

  • The MEMS gyroscope, the Invensense IDG 500, is also found on this board.

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Image 1/2: Parrot 6 ARM9 468 MHz processor.

Edit Step 6  ¶ 

  • Front of motherboard:

    • Parrot 6 ARM9 468 MHz processor.

    • ROCm Atheros AR6102G-BM2D b/g Wi-Fi module.

    • Micron OGA17 D9HSJ

    • Vertical camera.

    • USB/serial port connector

  • On the back:

    • Micron 29F1G08AAC

Edit Step 7  ¶ 

Image 1/2: These are not your run-of-the-mill propellers. The design team behind these won a micro drone design contest put on by the French Army.

Edit Step 7  ¶ 

  • Each propeller assembly is made up of the propeller blade, gear, motor and motor controller board.

  • These are not your run-of-the-mill propellers. The design team behind these won a micro drone design contest put on by the French Army.

    • The propellers spin in different directions depending on the side they are mounted on, and are marked either C (clockwise) or A (anti-clockwise).

Edit Step 8  ¶ 

Image 1/1: Parrot sells a special circlip removal tool, but we opted for a pick we had lying around the office.

Edit Step 8  ¶ 

  • The propeller blade and gear are held in place by a small circlip on a stainless steel shaft.

  • Parrot sells a special circlip removal tool, but we opted for a pick we had lying around the office.

  • These little guys can definitely go flying if you're not careful. Luckily, they come as part of two different replacement parts packages available directly from Parrot.

Edit Step 9  ¶ 

Image 1/2: Each brushless motor runs at 28,000 RPM while the AR.Drone is hovering, and as fast as 41,400 during full acceleration.

Edit Step 9  ¶ 

  • The four motors and their electronic controllers are each held to the central cross by six screws and a connector.

  • Each brushless motor runs at 28,000 RPM while the AR.Drone is hovering, and as fast as 41,400 during full acceleration.

  • The speed of the motor is managed by the electronic controller, which includes an 8-bit microcontroller and a 10-bit ADC.

Edit Step 10  ¶ 

Image 1/2:

Edit Step 10  ¶ 

  • The arduous task of peeling the protection blister from the body reveals the camera ribbon cable and the second magnet that holds the hull in place.

Edit Step 11  ¶ 

Image 1/2: The 93 degree wide-angle camera can stream its video and images directly to your iPhone, iPad, or iPod Touch.

Edit Step 11  ¶ 

  • A little bit of prying and the front-facing VGA camera comes right off.

  • The 93 degree wide-angle camera can stream its video and images directly to your iPhone, iPad, or iPod Touch.

  • With a resolution of 640x480 pixels, we doubt anyone will be filming HD movies with the AR.Drone's camera.

  • With Augmented Reality, objects captured by the camera become part of the AR.Flying Ace game.

Edit Step 12  ¶ 

Image 1/2: The two sets of wires in the central cross are responsible for controlling and providing power to the four motors.

Edit Step 12  ¶ 

  • The central cross easily pulls right out of the foam shell.

  • The two sets of wires in the central cross are responsible for controlling and providing power to the four motors.

  • The tubes of the cross are made of carbon fiber to save weight and provide plenty of structural rigidity.

  • The other plastic pieces are made of polyamide 6,6 (PA66), more commonly known as nylon.

    • Yes, there are different variations of nylon, but it's not necessary to explain the differences between condensation and open-ring polymerization right now. Let's just get back to tearing down the AR.Drone.

Edit Step 13  ¶ 

Image 1/2: The battery and upper case come off easily without removing a single screw.

Edit Step 13  ¶ 

  • Parrot AR.Drone Repairability: 9 out of 10 (10 is easiest to repair).

    • The battery and upper case come off easily without removing a single screw.

    • Almost everything is attached via ribbon cable connectors and screws, making replacement much more feasible.

    • Parrot provides replacement parts and repair videos for common problems. Repair wouldn't be very easy without both of these.

    • The c-clips on each propeller assembly are very hard to remove without the correct tool.

    • It's a pain to reapply adhesive after removing all the adhered parts.

11 Comments

Thanks for the teardown. Now if only they made it Android friendly this would be worth getting for me.

Bob - Reply

Turn off your data connection

Andrew Galvan -

Cool! now you guys need to tear down the 2.0 revision, quite a step up!

Gine - Reply

Just wondering what dose the connection look like for the camera to the mouther board, and is the connection the same for the ardrone 2

Austinthemighty - Reply

Love the Parrot AR 2.0! But it's a pricey fix... So before you take on this drone you should master the UDI U818A. It's really easy to fly and extremely cheap. If you're a beginner you should check out this review. It helped me make my decision...

http://dronelifestyle.com/udi-u818a-quad...

IndianaDronez - Reply

I took all my cogs and propellers off without thinking now my new carbon fibre ones have arrived they are not marked with a or c so don't know which one to put where can any one help please

matthew ward - Reply

I have took of my parrot ar drone propellers off without thinking and now my new carbon fibre ones have arrived I have a problem as the propellers and cogs are not labelled with a or c so don't know which is which, can anyone help please

matthew ward - Reply

I crashed my 2.0 drone and I'm having control issues. It keeps flipping over. On close inspection I see one of the motor control boards is missing a very small chip on the very end of the motor control board . Only 3 of the motors is working properly. Do I a complete motor and control board or can I just get the control board?

P.s. your article is very help.

gibbgary555ss - Reply

I crashed my drone 2.0 . I'm having control issues. It just wants to flip over. On close inspection I noticed a very small chip missing on a motor control board. Can I just replace the control board or must I purchase the motor and control board together?

Thank-you. G.S.Gibbs

gibbgary555ss - Reply

Android, Windows, & Linux applications now available through various sources. See Ardrone-Flyers.com forum.

opie - Reply

I just crashed my Parrot AR.Drone and was wondering how to fix it. Luckily, this article pops up and thank you for saving my $400 investment. The motor and rotor of the AR.Drone got jagged due to dust getting into the inner motor. I was able to disassemble to somehow using the pictures given in this article.

I like my Parrot AR.Drone model so much, but it still a pricey fix to get the replacement parts. Would it be better to try an alternative options such as a Hubsan or syma x1 to learn flying the quadcopter in the way it is meant to be flown?

Anyways, I checked out this review back at the time when I made decision to buy Parrot Ar Drone quadcopter. You can check out it if interested.

http://www.bestquadcoptersreviews.com/pa...

Anthonydelon - Reply