• RaceFlight One source code has been published and what does that mean

    In the beginning of time, there was MultiWii and it was good. But then times moved on and 8bit ATmegas were end-of-line for flight control. So, Baseflight was created. In the beginning, it was supposed to be only a MultiWii port to support STM32f1 flight controllers in a for of Afroflight Naze. And it was…

  • Crossbow LRS, I’m still doing this wrong…

    Only two weeks ago I thought I solved all my major problems with DIY LoRa RC link. I was wrong. I was able to solve one problem (link unstable due to rouge packets messing up with protocol decoding), but an old problem came up again: PPM input from Taranis is no longer stable. At least…

  • EXUAV Y120S drone racing frame: go home designer, you are drunk

    Chinesium is amazing. Well, to be precise, not only chinesium manufacturers will do anything just to stand off a little. Just like this little (120mm) quadcopter frame called EXUAV Y120S. Why do I even bother to write about it? Simple: I love crazy designs. Just look at those pictures below: No, it’s not a tricopter.…

  • Arduino hygrometer with DHT11 and SSD1306 OLED display

    One of the things I like about Arduino ecosystem is that you can prototype pretty decent device in very short time. It might not be pretty, but will work. Just like my DIY hygrometer built with DHT11 and SS1306 OLED display I’ve built few weeks ago: Simple, efficient and runs on 4 AA batteries. The…

  • Visual Studio Code as Arduino IDE replacement

    I can say a lot of good things about Arduino ecosystem. List will quite long, trust me on that. But Arduino ecosystem has one thing that sucks a lot: Arduino IDE. Programming environment for Arduino is crap. Period. I would not call it the worse development environment ever, but it's pretty close to that title.…

  • 3D printed racing drone, part 1

    I’ve been pretty busy last 2 weeks. Among other things, I’ve started to design 3D printed racing drone frame. I’m fully aware there are plenty designs available on Thingiverse, but almost all of them forgets that plastic filament is not carbon fiber laminate and what works well with carbon, will fail with filament. So, I…

  • How to wind an electric brushless outrunner motor with dLRK winding schema

    This time, another “motor winding” video. In 13 minutes and something seconds I: show some tool that I find useful for motor winding wind a 12N14P brushless outrunner electric motor with dLRK winding schema terminate this motor into Delta configuration BTW, in next video I will show you if it worked or not 🙂

  • iRangeX IR8M: when you clone too much, but that is not a bad thing after all

    I love chinesium and admire chinese manufacturers very much for a simple fact: some time ago they stopped just cloning. They started to create new things based on “legit” ones. Just look at iRangeX iRX-IR8M 2.4G 8CH Multi-Protocol Transmitter. Doesn’t this thing looks almost like Team Black Sheep Tango radio transmitter? Well, it is at…

  • ESP32, Arduino and 3 hardware serial ports

    When working with ESP32 WiFi/Bluetooth MCU under Arduino SDK for ESP32, you will notice that Serial work just fine. But Serial1 and Serial2 do not. ESP32 has 3 hardware serial ports that can be mapped to almost any pin. But, Serial1 and Serial2 will not work. In case of ESP32 this just has to be…