Tag: RC & FPV

  • DIY RC radio link: the problem of protocols

    So, you want to build your own RC radio system? Long range maybe? Cool, I want to do it too. Since I’m pretty deep in that topic now, I can give you a hint or two. For example, have you thought about a protocol your radio system will implement? Or rather should I say: protocols?…

  • Generate S.Bus with Arduino in a simple way

    Generate S.Bus with Arduino in a simple way

    Did you noticed that lately I write about radios quite often? Well, I do and it’s not a coincidence. Proper introduction for what I’m working on will happen in a next few days, but now I will only write that this will be a mid-range, cheap, DIY radio link for UAVs. By mid-range I mean…

  • RunCam Split very late pseudo review: it’s not good

     I own RunCam Split. I own it for like 2 months now, and it’s still in a box. Never connected, never really used. And in the meantime, I’ve build 2 mini quads are rebuild third. Why is that? Is there something wrong withthis camera that I’m not using it anywhere? And not planning to? Let’s…

  • INAV 1.8: Automated landing for fixed wings

    It’s official: next release of INAV (1.8 or maybe 1.7.2) will incorporate an automated landing procedure for fixed wings. I was already writing about it 2 weeks ago, but now new code has been merged back and will be released. Bear in mind, that this is not “state of the art” landing yet. It’s rather…

  • INAV 1.6: Fixed Wing PIFF Controller

    Another new feature of upcoming INAV 1.6 (BTW, INAV 1.6 ALPHA-1 has just been released) is brand new PID controller for fixed wings. I repeat: this new controller is used only on fixed wings, multirotors are not affected. So, what is new about this new PID controller? First of all, it is no longer a…

  • Simplest hardware inverter for flight controller

    Simplest hardware inverter for flight controller

    Together with increasing popularity of STM32F4 flight controllers, telemetry became hard topic again. Why? Most popular telemetry protocols, SmartPort and FrSky telemetry , requires inverted signal. Zero becomes one, one becomes zero. In case on STM32F3 that was not a big problem. Those CPUs have built in inverters. STM32F1 and STM32F4 does not. So, if…

  • MPU6000 vs MPU6050 vs MPU6500

    MPU6000 and MPU6050 Deep down, MPU6000 and MPU6050 are the same same hardware. They both have the same 3 axis gyroscope and the same 3 axis accelerometer. Both allows max 8kHz gyro sampling rate. From a flight controllers point of view, the only difference between them is bus that connects them to CPU. MPU6000 allows…

  • Flip32 F4 / Airbot F4 : Pinout

    There is very little reliable information about Flip32 F4 / Airbot F4 on the internet, so I’ve decided to fix it. Today, pinout map for Flip32 F4 (Betaflight 3.0.1) and some additional notes: Betaflight 3: use REVO target

  • Generate PPM signal with Arduino

    Generate PPM signal with Arduino

    In the beginning of this year I’ve written a short tutorial how to read PWM signals from RC radio with Arduino. While it is can be useful when building own RC equipment, it does not help much when one has to deal with PPM (CPPM) signal. Let’s be honest, PPM is much more useful than…