Zaggometry telemetry adapter: capable of reading the NAZA GPS and onboard voltage.

Zaggometry: How to log your flights with the Taranis

The Zaggometry is a clever little piece of electronics wich can read the NAZA GPS coordinates of you copter and send it over the telemetry link down to your Taranis RC-remote for display and logging. Or in other words, it is a bit like a Flytrex Live flight recorder  for your Taranis. The 29€ Zaggomety is developed and produced(!) by Eberhard Rensch in Germany. In this article I would like to show how I installed it in my TBS Discovery Pro and what kind of data I logged during a test flight (video).

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openTX Companion

Taranis upgrade to openTX 2.0

I usually never change a running system but I wanted to play with some new telemetry sensors and all the new LUA scripting features of the openTX 2.0 on my TBS Disco Pro. This is (not yet) an official FrSky firmware. They are stuck at some older, feature restricted  1.x version and they might never offer some of the newer features, as they consider the Taranis a feature complete product. Well, I don’t.

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Newly built TBs Discovery Pro. I'm back in the air!

I did it again! 2nd Discovery Pro build

As we all know, my first TBS Discovery Pro crashed horribly with no hope for easy repair. So what should one do with all The FPV gear and not model to fly? Right. Build a second TBS Discovery Pro. It should not take too long, as I’ve documented my last build in detail  (build log part1, part2 and part3). This time however I want to make some minor modifications:

  • move the X8R receiver inside the frame next to the NAZA instead of having it sitting on the back outside.
  • repositioning of the video antenna to the top of the frame for better reception
  • Add RSSI connection for the OSD
  • Put the GPS puck on the stick for better reception

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Gallery: 2nd TBS Discovery Pro build


The image gallery of the first build can be found here.

The skyline of Zurich with the Bellevue bridge in front and the Limmat and churches in the background.

Spring in Zurich

Today was a beautiful warm spring day and I decided to do what all the people from Zurich are doing, going down to the lake. While the promenade was severely crowded, I had the sky all for myself ;)

The skyline of Zurich with the Bellevue bridge and the Limmat in spring 2014.
The skyline of Zurich with the Bellevue bridge and the Limmat in spring 2014.
The newly redesigned Sechseläuten square in Zurich with the opera house in the background.
The newly redesigned Sechseläuten square in Zurich with the opera house in the background.

[twoclick_buttons]

Broken main board, video TX antenna and GPS controller after a crash.

Nomen est omen: Crashpilot

Well, well, we all knew it had to happen. One of my copters crashed. It fell out of the sky, more then 30m onto asphalt. It looked really horrible. The Disco scattered into peaces, it had a totally broken frame with many damaged parts lying around. I could salvage a few pieces from the debris, but I will need to rebuild a new copter from scratch.

Some recovered parts after a crash. The copter fell apart, lost one arm and scattered into peaces.
Some recovered parts after a crash. The copter fell apart, lost one arm and scattered into peaces.

Luckily nobody got injured and nothing on the ground got damaged. So the worst thing is, that I don’t fully know why it happened. It could have been the almost empty battery, but I could also have been the camera controller board flying into the propellor. I guess I need to do more tests once I have rebuilt  my Discovery.  I just hoped I would not have to build a second Discovery Pro so soon again :(

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Build Log: Taranis and TBS Discovery Pro, Part 3

In the third part of the build log I would like to cover the setup and configuration of the Taranis RC with the TBS Discovery Pro. After covering the mechanical build in part 1 and part 2 of the build log, this part will be about the wiring and programming of the remote control.

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Detailed setup guide and model files to download after the break. Continue reading