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My Mikrokopter
Last modified June 11th, 2010
Project description
This is the result of my interest in building a Quadrocopter.
The vehicle was made after plans from www.mikrokopter.de, there all informations for mechanical and electronic construction of such copter are available.
My MikroKopter is based on a aluminium frame made from square profil with dimensions of 10x10x1mm.
A center plate from 1.5mm carbon fibre gives the whole construction more stability. Length of the frame is 43cm, where width between motor axis is 40cm each. 4 brushless motors driving 10×45″ propellers, two
left and two right turning to compensate torque of the whole system.
Each motor is driven by a brushless controller based on AVR ATmega8.
All brushless controllers are commanded by the main controller board which is based on AVR ATmega644.
The main board uses 3 gyros and a 3-axis accelerometer to keep the Quadrocopter stable in the air. A barometric altitude sensor is used to allow a simple height hold when in flight.
A standard RC receiver is used to get signals from a simple (minimum) 4 channel RC transmitter.
For expanded in-air times and for required motor power a Lithium-Polymer accu is used which give excellent performance and flight time.
Because of interface to the main controller the Quadrocopter can be equipped in example with Bluetooth, GPS, compass module and much more things. And not to forget the camera to make in-flight photos or videos.
Technical details MikroKopter v1
- RC receiver 35MHz Jeti rex 5
- Accu Kokam 3200mAh, 30C, 3S1P
- Brushless controller PCB v1.0, firmware v0.35, better MOSFET’s IRLR7843PBF & SUD50P04-15
- Flight control v1.0, my own PCB design after schematic from www.mikrokopter.de
- Motors Simprop Magic-Tourqe 20-09
- Propeller EPP1045
- Frame aluminum profile 10x10x1mm, 40cm motor axis distance
- Landing gear: Caps from water bottles with softballs (diameter 4cm)
- Centerplate self-made from carbon fibre
- Take-off weight around 920g
- In-air time 15minutes (Hovering) with 2,44Ah capacity used (until LowBatt warning)
- Lighting with 4 Rebel-LED’s, blue, red, green and white, driven with 400mA
Project Pictures
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Hi, it’s me
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Technical details MikroKopter v2
- RC receiver 35MHz Jeti rex 5
- Accu Kokam 3200mAh, 30C, 3S1P
- Brushless controller PCB v1.0, better MOSFET’s IRLR7843PBF & SUD50P04-15
- Flight control v2.0 with ADXRS610 MEMS gyros, my own PCB design after schematic from www.mikrokopter.de
- Motors Simprop Magic-Tourqe 20-09
- Propeller EPP1045
- Frame aluminum profile 10x10x1mm, 40cm motor axis distance
- Normal landing gear: Caps from water bottles with softballs (diameter 4cm)
- Optional camera landing skids from CFK
- Centerplate self-made from carbon fibre
- Take-off weight around tbd
- In-air time tbd (Hovering) with 2,44Ah capacity used (until LowBatt warning)
- Lighting with 4 Rebel-LED’s, blue, red, green and white, driven by a LED-Warrior 01 constant current source, controlable by PWM or blinking sequences from FC
Project Pictures
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Downloads
Due to a request from the Mikrokopter Development Team any project files for my Flight Control v2.0 are no longer available.
Links
www.mikrokopter.de – The main project page (also with english part)
forum.mikrokopter.de – Mikrokopter discussion board
www.mikrocontroller.com – Shop for required parts
mikrocontroller.cco-ev.de/mikrowebsvn/ – SVN with AVR source code brushless controller and main controller board
http://euro-police.noblogs.org/category/drohnen – Blog about drones (in German)
http://amir.ch/weblog/ – Amir Guindehi’s Blog about his own UAV
Vitaliy · 19.07.2010 at 13:57
Dear All.
Very good PCB design – You cantered accelerometer and giros. And I think it became smaller.
I’m trying to make my own PCB design after same schematic. But I have no possibility to make it 4-layers, because of impossibility of producing it at home.
So, I’m trying to make 2-layers PCB.
Could You please help me, if You tried before to make the same and You have PCB files of 2-layers V2.0 PCB, even not finished.
Best regards,
Vitaliy.
Admin comment by Michael · 19.07.2010 at 17:14
For the FC 2.0 I made only a 4-layer PCB, so files for 2-layers are not available.
But the FC 1.0 I made uses 2-layers only and therefore files exist.
Josef · 25.07.2010 at 12:14
Dear Michael,
I would like to thank you for your MK 2.0 PCB design and accordingly let me propose you my PCB designs. I don’t want to spread my PCBs worldwide due to the same reason as you, but if you want the PCB of a little bit modified “NaviControl”, I can send it by e-mail. It is double sided PCB instead of multilevel one in case of MK-NC. It has been not tested yet, but I gave it to manufacturer day before yesterday. So I am looking forward for result now.
I have got also my PCB design of OSD, already tested. I can send it to you in case of your interest.
I am sorry, I have changed my IP a week ago, so I am waiting for public IP nowadays. Therefore web sites are not available now. But try it in a week, I think it should be OK.
Regards, Josef.