Archiv der Kategorie: FPV

Easy Race Lap Timer Image with working sound

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Our FPV racing group „Aircrasher“ wanted to track our lap times. Therefore we decided to use Easy Race Lap Timer Pocket Edition (ERLT PE).  To track centralized multiple ERLT PEs we used a Raspberry 3.

After downloading and installing the easy race lap timer image v0.6.1 from here (www.easyracelaptimer.com/downloads/) for the Raspberry Pi 3, we noticed that it had problems with the sound output. We tried to get it working by patching the error. Unfortunately we couldnt’t fix the problem.

Having spent some hours on the ERLT Image I decided to build my own image from the scratch. And now sound output is working  🙂

EDIT: PDF export  isn’t working with this image. You have to execute this command on the ssh shell:

 sudo chmod +x /home/pi/EasyRaceLapTimer/web/bin/wkhtmltopdf

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Connecting the Ardupilot 2.5 Mega with the QuadCopter

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After assembling the frame, mounting the brushless motors and connecting the ESCs, the Ardupilot 2.5 Mega (APM 2.5 Mega) has to be installed wired properly. Here are some pictures and drawings which show the correct connections (first pics come from DIY Drones, copyright by www.diydrones.com ):

APM2_pinout_print

 

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Multiplex Easy Star 2 Camera Carrier

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After buying my Go Pro Hero 3 I wanted to attach it to my MPX Easy Star 2. I was looking for a method, which was firm, safe and removable(!), so I was able to use the plane without the weight of the Go Pro. Just like a stock Easy Star.

Having seen it on the internet, I wanted to replace the cockpit by a custom built camera carrier. This is what I did:

First I made a template from cardboard. From this forms I cut wooden pieces.

Construction of GoPro3 Carrier for EasyStar2

 

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GoPro Hero3 Black Edition – DIY Live Video Out Cable

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After being interested in FPV and areal video. I wanted to use my GoPro Hero 3 Black Edition as a video camera for FPV. I read about a special cable I had to buy, but on one hand it was pretty expensive and on the other hand it looked very bulky and heavy.

So I found and article of David Windestal, in which he describes how to build your own lightweight video out cable: rcexplorer.se/diy/2012/11/diy-gopro3-video-out-cable/
Thank you very much David!

All you need is a special proprietary 10 pin mini USB connector. Here is the plan how to connect the pins: (At your own risk of course!)

GoPro3-Video-Out Connection Plan

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