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FS1000A and XY-MK-5V 433MHz RF modules: overview
One of the cheapest (but not the best) solutions for DIY wireless data transmission between different devices (Arduino and other microcontrollers) is a pair of 433MHz modules: FS1000A and XY-MK-5V. A set of them (you will need one transmitter and one receiver) costs about $1. Pretty cheap, right? Of course, there is a price to…
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AnyFC F7 output mapping for INAV
AnyFC F7 when running INAV, is not using standard output mapping. That means, that M1 output is not where you should connect Motor 1 and M2 is not where Motor 2 should be connected. It’s a little complicated, but with following table it should be pretty easy to connect any possible configuration to AnyFC F7…
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Using FET transistors as switches
When over a year ago I published this post about using transistors as switches, I described only how to do it with bipolar transistors. And bipolar (NPN and PNP) transistors have a small problem: they are current driven, so they consume current when they are switched on. They consume much less than they drive, but…
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Scarab Knife 200 finally in the air
It took me much more time to put my Scarab Knife 200 4″ from CarbonBird.com into the air and actually fly it. First try that happened 2 weeks ago failed due to beginner mistake: too long motor screw caused one of the motors to overheat. I had to order shorter M2 screws and redo some…
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AnyFC F7 Pinout
There is still very little about AnyFC F7 on the internet. Especially pinout is kept secret. Without sambas official GitHub repository for hardware projects, there would be nothing at all. I’ve decided to close that gap a little and prepared full pinout for AnyFCF7. Yes, I know they are hand drawn and scanned, but I…
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FrSky SmartPort Telemetry on AnyFC F7
STM32F7 CPU family present in newest, experimental, flight controllers like AnyFC F7 (as well as upcoming AnyFC M7 with smaller STM32F722) simplifies many things. For example, comparing to F4 boards, SmartPort or S.Bus connection is extremely simple and can be done on any free UART. No more hardware hacks, external inverters and other “special” ways…
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Hands on: AnyFC F7 from Banggood
Before we proceed, short clarification. Legal background of AnyFC F7 flight controller from Banggood is iffy. It’s not that BG ripped the design from Sami Korhonen (sambas). Sambas published design of his AnyFC under Creative Commons BY-SA. So, it’s free to copy this design as long as Sambas is referenced as author, and license is…
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GPS Racer: worklog #4
Yesterday I finally maidened my GPS Racer in full FPV configuration. RunCam Owl Plus and VTX finally arrived, it was not raining, so I took recording gear after sunset and went flying. To be precise, it was not “night”. But it was pretty dark. Too dark for my RunCam Swift. Owl Plus was sensitive enough…
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3D Printed Paddle Wheel Boat
It’s not a secret, that me, and QuadMeUp, are not only about quadcopters. From time to time I like to do something completely different. When I was a child (10-12 or something like that) I loved to build boats. Simple crude design: styrofoam or bark, simple sail or DC motor and tinwire propeller. No RC…