Category: Tutorial

  • How to change Timeline framerate in DaVinci Resolve

    When I started my adventure with DaVinci Resolve, one of the biggest limitations I discovered what that it’s not possible to change the framerate of a Timeline. If you created a 30fps timeline, it would remain 30fps timeline. Once you start editing, you even can not change the project framerate!Luckily, there is a trick that…

  • How to normailize audio for YouTube with DaVinci Resolve

    Audio mastering/normalization is very important. If your audio levels are too low, viewers will not hear well. If they are too high, clipping and distortions will lower the quality. On top of that, platforms like YouTube expects you to upload materials with certain loudness. If your loudness is too high, YouTube will lower your videos…

  • How to exit VIM? 4 simple ways

    VIM is one of the best pieces of software ever created. But the way you are supposed to exit it can be a major PITA. Of course, only if you don’t know how to do it. Here are four ways of exiting VIM with and without saving your work.

  • How to generate PPM signal with ESP32 and Arduino

    The PPM protocol for encoding Remote Control channel values is now a legacy. Still, it is widely accepted by different hardware and when tinkering with Arduino, remote control, and working on own accessories for flight controllers, PPM is still a valid option. A few years ago I presented a code that allows generating PPM stream…

  • Jumper T18 radio transmitter and FrSky R9 receivers

    One of the advantages of the Jumper T18 over its competition is the JP5in1 Multiprotocol Module compatibility not only with 2.4GHz FrSky and FlySky receivers but also with Long-Range FrSky 868/915MHz R9 system. At least in theory, because when I got the radio, I could not bind and use any of my R9MM or R9…

  • EmuFlight Kalman Filter Tuning

    The most distinctive feature of the EmuFlight flight controller software is it’s gyro Kalman filter. Yes, the same filter that some people name the dynamic PT1, doubt that it works or calls it magic. I will not discuss if the EmuFlight Kalman works and how it works (it works tho, I have enough time in…

  • How to setup INAV on a rover

    INAV 2.5 finally allowed to use INAV and INAV compatible flight controllers to be used on rovers and boats. Finally, INAV supports not only flying vehicles. Bear in mind, that the rover and boat support is not full, and some functionalities might not be working like expected. What works: Reversible ESC and motors Steering Waypoints…

  • Long-Range FPV Tips

    Long-range FPV is one of the hardest aspects of the modern R/C hobby. Not only will you be sending your foam airplane of drone miles and miles above the line of sight range, if anything goes wrong, but you will probably never recover your UAV. Dead servo, burned motor, broken linkage, or just depleted battery…

  • What is a PID controller and how it works?

    The whole FPV hobby, and especially multirotor drones, work only thanks to control theory and PID controllers. They are the only thing that separates chaos and immediate flip-over from a stable flight. A regular multirotor has at least 3 PID controllers. If you enable any mode with self-leveling, the number goes to 6. Any GPS…