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How to flash FrSky R9 Mini, R9 Slim and others with your radio
FrSky is not making things simple with R9 long range system. New firmware appears quite often and there is no way to flash receivers over the air. You can use some PC software, passthrough from FC and things like that, but from my perspective, as long as you can get to the receiver itself, the…
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Top 3D Printed Tricopter Drone Design for DIY Enthusiasts
In the last two weeks, I had plenty of time to sit in front of Fusion 360 to design a few things, but no time to 3D print anything. As a result, I have a couple of almost ready projects. Yesterday I showed you 3D Printed Dualcopter Reloaded. Today I will show you 3D printed…
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3D Printed Dualcopter Reloaded #1
The first generation of my 3D Printed Dualcopter was not the best. It was flying. Somehow. Poorly. Crashed. But for a moment it was flying alright. I'm slowly designing the second generation of Dualcopter. This time smaller in scale since instead of 10-inch propellers, it will be using 5-inch ones. And smaller 2205 motors. And…
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Eachine TX805 5.8GHz 800mW video transmitter hands on
I have something like a personal problem with “the best FPV transmitter manufacturer”. It’s about ideology. So, when a few weeks ago I had to order a few 5.8GHz transmitters, I had something like a problem. With TBS Unify Pro on my “not wanted” list, the “wanted” list got somehow short.I do own a few…
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INAV OSD Profiles – because one OSD layout is not enough
INAV 2.0 changes a lot. Including OSD. One of the new functions is something called “OSD Profiles”. You can set up 3 independent OSD layouts to radio switches and change them during flight. One OSD profile can display all the data, second one minimal set of data and the third one Map or Radar mode.
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Do It Yourself liquid soldering flux
Do you know you can make your own liquid soldering flux? And possibly flux pen refill for cheap? All you need is some solid soldering rosin and 95% ethanol alcohol. Cheap, kind of dirty, but works…
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ESP32 and GPS with a help of TinyGPS++ library
One of the first projects I did with ESP32 development boards is a simple GPS tracker. OK, it's not really a tracker since it does not store the position anywhere, more like distance meter with a UBLOX Neo-8M Beitian BN-880 GPS unit and small SSD1306 OLED display. This ESP32 GPS Thingy as I call it…
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Getting started with ESP32 development boards and Arduino
However fond of good old Arduino based on ATmega328 and ATmega32u4 we might be, no one can now say they are state of the art. Sure, they might be the first choice to do something cheap and simple, but compared to most more modern designs, they are just too old and too weak. Slow, little…
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Custom FrSky R9M 868MHz antennas giveaway
As you might have realized, from time to time I’m making an antenna and I have the equipment for it. I’m also strongly considering to produce a small batch of antennas for FrSky R9 long-range radio system since there is a high demand for such antennas. I have made a first small series or FrSky…