Reptile500 – my new FPV quadcopter project

FPV flying is more and more fun for me. The X550 quadcopter does very well on this part with the MultiwiiPro board running MegapirateNG. But my problem is space for all the FPV equipment and the props, which blocking partly the view of the camera. In my last post I was thinking about the Hobbyking ...

X550 upgrades and MultiWii Pro with MegapirateNG 2.8 1

The configuration of my quad has changed a lot from my last posts where I wrote about it. The motors and ESCs are still the same, but I upgraded from 8″ to 10″ inch props. This was a good decision, the quad moves a lot better with them. But the EMAX CF2822 seem to be ...

Different approaches to list open network connnections on your Linux server

Often we have good reasons to ask, who is connecting to our server or what process is using which port? There are some simple ways to verify that. A good start is always the NETSTAT command. netstat -tn tcp 0 0 10.10.10.228:46057 74.125.135.139:443 ESTABLISHED tcp 0 0 10.10.10.228:44840 64.91.231.216:80 TIME_WAIT tcp 0 0 10.10.10.228:52012 23.10.17.224:80 ...

Lazarus part of my Templogger done 3

I had quite a fight with the TAChart component in Lazarus. For all who don’t know about Lazarus, it is a free Delphi alternative which runs on various platforms. A good thing about Lazarus is, that you can play around with the components you drop at the form already within the design process. So the ...

The magic of SQL

I am still working on my Temperature Logging project with the RaspberryPi mentioned here. The Raspberry is collecting the data and stores it in a MySQL database. Each hour, it does 5 measurements. My plan is to visualize these measurements in a little program I want to write with Lazarus. Lazarus got the TAChart component ...

Temperature and Humidity Logging with RaspberryPi 4

After a long time with all my RC stuff, I got interested to do something with the RaspberryPI. I am using one already a media center but that was not really a challenge. Motivation was to solve a problem we have at some of our customer sites. Here in a tropical environment, working air conditions ...

“Amount to Words” and a Revival for a twenty year old book

Other than in my home country Germany, Cheques still play a big role here in Malaysia. Its been a pain to fill them out and frequently there’s an error and trouble with the bank. An idea was born, I need to write a software doing that job for us.  Well I am more into PHP ...

Cheap DIY FPV Goggles

The prices of FPV goggles are insane. Why do we have to pay more than $250, for two tiny screens in a piece of plastic? I have no idea. There are some cheap goggles out there, for around $120, but they are using low resolution screens. So for a decent solution, you need to spend ...

Brief test flight with GoPro 3 onboard of my DJI F450

Here a video of a test flight using my DIY camera mount.

GoPro 3 mounting made from its packaging

As soon as I got my GoPro 3 I wanted it to be mounted on my DJI F450 frame. Thats the multicopter I am using most of the time, it just flies so beautiful and never gave me any headache. The way I assembled the frame, was a bit unfortunate. The extended space from the ...