I need a GPS logger, don’t have one, don’t want to buy one, so let’s build one! I have all the necessary parts, so let’s start!
1. What do I want?
I need a device that logs location, speed and course on an SD card. I could use my Android phone to do this, but the GPS would drain the battery within the hour. So let’s build a dedicated device.
Because it won’t have a display, it needs to have a way to show if it has a GPS fix. It needs to run on a 3s lipo (11,1v) for as long as possible (preferably >12 hours), but I also want it to warn me when the battery voltage gets too low because lipo’s should never be discharged below 3v per cell (9v total) or they get damaged.
All that must fit in a waterproof case. Why waterproof? That will be clear in a future post 🙂
A while back I bought a Bixler powered glider at Hobby King. I bought the kit, so could swap out all the inferior components that come in the ARF (almost ready to fly kit).
It had been laying there, carefully planning how I would build it, but last Sunday it was finally finished!
The maiden flight went perfect!
A few flights later, I almost killed my sister though 🙂
* This ESC is too weak! It overheated after a few full throttle loopings and fly-by’s (see below). I will be moving the ESC to the outside of the body to cool it down, or swap it out with a 60A ESC that’s currently underway.
This prop/motor combination gives these results: 412.7 W and 36.69A!
Some guys from the OpenPilot forum decided to have a meeting to fly our variety of crafts. We decided on a spot in Belgium, in the town of Kelmis, close to the German and Dutch border.
It was an incredibly fun day!