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Bench power supply Yihua PS-3010DF
Some time ago I started to feel a need to have a bench power supply. Not laboratory-grade, but something that can deliver both some volts and amps. Of course with overcurrent protection. Aliexpress is full of such a power supply units and at the end, I’ve decided on Yihua PS-3010DF with 30V voltage and 10A…
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Mateksys F411-Wing SE – even smaller F411-Wing
The second half of 2019 belongs to Mateksys? Hard to tell, but they seem to be pulling new interesting flight controllers out of their sleeves! Only yesterday I showed you first images of Mateksys F765-WING and today it is time for Matek F411-WING SE! Mateksys F411-WING SE is an improved version of F411-WING from the…
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Matek F765-WING – flight controller on steroids!
This is preproduction sample, some details of Mateksys F765-WING might change in the final version that will hit the market! Matek F765-WING on Banggood Looks like Mateksys did it again, and the next flight controller in WING family will be one again the beefiest flight controller around! What’s new? A lot. It’s still the same…
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European Union drone laws after June 2020
Starting from June 2020, unified European Union drone laws will become a reality. European published two regulations 2019/945 and 2019/947 that describe the unified rules that all member countries will have to implement before June 2020. Some say that drone hobby is dead in EU and corporations are winning. I took a few hours of…
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NEW European Union Drone Laws – a complete guide for 2020 changes
European Union is regulating drone and RC airplanes law and starting from June 2020 all member countries will have to align its laws to meet EASA regulations 2019/945 and 2019/947. According to them: drone pilots will have to register and pass an online test commercial drones will be classified into classes: C0, C1, C2, C3,…
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Low Pass Filter Experiments
All flight controllers we use in RC hobby (FlightOne, Betaflight, INAV, Pixhawk, dRonin, and all the other) use low pass filters. What does a low pass filter do? It passes low-frequency components of a signal (below cutoff frequency) but attenuates high-frequency signal components (above the cutoff frequency). Since it’s hard to make a visualization of…
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Jumper T16 Review – better than FrSky?
Jumper T16 RC transmitter messed around in the RC hobby in the last few weeks. FrSky wants to ban it since according to them it’s a clone of FrSky X10 (bullshit by the way). The question is: is Jumper T16 a good radio transmitter worth the money and what’s more important, is it a real…
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Impedance Matching 101
Why do we match the impendance? And what the heck the impedance really is? 50Ohm, 75Ohm, low impedance, high impedance, reflections and all that crap that normal people usually ignore. Nobody said that we are “normal” over here so let’s take a look at this whole input/output impedance matching business.
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INAV 2.2 – what’s news, what changed, the most important features
INAV 2.2 is almost ready. The list of changes is long, those are the most important ones STM32F7 optimizations. F7 flight controllers are now as fast as F4 Better airmode handling for multirotors Betaflight D_min equivalent called D-Boost Iterm Relax Smart Audio 2.1 New Mission Planner Continue mission on failsafe waypoints in CLI stick arming…