Pekka Ahola
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Pekka Ahola's Blog

Multiwii 2.2 stick configuration cheat sheet for Mode 1 transmitters

Posted on May 26, 2013 at 7:30am 5 Comments

I was playing with my custom built quadrocopter based on Multiwii platform, but had trouble finding a comprehensive guide to stick configuration functions online. I stumbled upon Mr.…


Raspberry Pi - A dirt cheap new embedded platform for £15

Posted on May 6, 2011 at 4:30pm 4 Comments

Thumbsize PCB.





10Hz Venus GPS Module + antenna ~ $62

Posted on October 17, 2009 at 3:11am 10 Comments

Just came across a "new" module from Sparkfun, that promises 10Hz update rate and has a binary protocol. Does anyone in the community have any experiences working with one of these?

Venus GPS Module

SMA… Continue

How to make a more stable UAV plane platform.

Posted on March 14, 2009 at 4:57pm 6 Comments

Ever heard of "Moment of Inertia"? Neither had I, but it's quite simple really.

Object with the most of it's weight at the center of it's gravity is easier to rotate than one with the weight on the outer edges. So why put all the electronics and batteries in the center under the wing. By distributing the weight to the wings, should create a platform that has steadier flight characteristics.

More on this and a few pictures in my… Continue

OpenWrt UAV platform

Posted on March 9, 2009 at 8:48pm 7 Comments

My idea is to use OpenWrt + Arduino for a futureproof/scalable UAV patform. I'm planning to do some testing in the spring with the basic Fonera router flashed with OpenWrt Kamikaze 8.09.

This setup however doesn't have USB-ports that would enable live streaming webcam, 3G modems and in-flight high quality images through gphoto2 and a digital camera. I'm waiting to see how much the just finalized Fonera 2.0 with USB costs, but I'll still probably go with the… Continue

Comment Wall (1 comment)

At 4:47am on May 12, 2009, Akram Habib said…
Hi Pekka,

You mentioned that you used an Accelerometer on your previous message. Which Accelerometer were you using? I am looking for a two-Axis if you know of any with simple installation process. I am tying to test the accuracy of the result I have obtained for the tilt compensation.


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