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DIY 4S battery pack from 18650 Li-Ion for RC FPV drone
‘ve made me an endurance Li-Ion battery pack for my 7 inch endurance quadcopter. With good quality Sony 18650 VTC6 it is possible to get 20A constant current which is enough for an airplane or endurance quadcopter. Works just fine and with reasoable speed of 40-50 km/h I’m getting more than 15 minutes of real…
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When Red Cat tries to buy my Blackbox logs, it smells fishy
Out of nowhere a company, RedCat, jumps with a super duper web page that allows you to analyze your blackbox log with something that apparently is based on Blackbox Explorer and Plasmatree PID Analyzer, puts blockchain, artificial intelligence, law regulations into the mix and on top of that, almost offers to pay you for that.…
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7 inch quadcopters fly like shit? Well, kind of, yes…
So, you got yourself a 7-inch quadcopter drone, you try to tune it, and you finally discovered that something is bloody wrong? Whatever you do, no matter how long you tune the PID gains and filtering, you can not get rid of jello and some strange vibrations? Welcome to the club mate! Apparently, scaling 5-inch…
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This is why YOU SHOULD use only 8 channels in Betaflight!
When two weeks ago I said that you should only 8 channels when using FrSky SBUS I meant it and you just had to take my word for it. Today a small proof how Betaflight 3.5 feedforward component looks on the Blackbox with 16 channels and 8 channels. Of course, in both cases, RC smoothing…
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INAV OSD Map and Radar modes explained
INAV 2.0 introduced two new OSD modes: Map and Radar. Here is a video describing what are Radar and Map modes in INAV and how you can use them.
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INAV Airmode and Motor Stop on Multirotors and Fixed Wings
What are Motor Stop and Airmode features in INAV and how they differ from each other when used on multirotors and fixed-wing airplnes? Should you use Motor Stop on multirotor? Should you use Airmode on a fixed wing? Long story short: On multirotors, Motor Stop not recommended to use while Airmode is recommended to use.…
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Matek F722-STD not booting without battery and how to fix it
What to do when Matek F722-STD flight controller is not booting without connected battery and connection from Configurator is not working? Simple, power GPS and magnetometer from a different pad. All 5V pads are powered only when external power is supplied to the flight controller. Not when power is applied via USB cable. If you…
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EMAX RS2 2206 1600KV motors hands on
Think about an electric motor for your 5 (or maybe even 6) inch acro or FPV racing quadcopter. What do you see? Something in a 2205-2306 size range with a KV rating somewhere 2300KV and 2600KV. Sometimes even more. And it works great, as long as you wat 5-inch props and 4S batteries. You can…
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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…