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How to reverse motor direction
You finished your build, you connect LiPo, power up flight controller, apply throttle (no propellers of course) and you see that one or motors are spinning in wrong direction. How to fix that? You can not do it, for example in Cleanflight Configurator. ESC communication protocol does not allow to change BLC motor direction. There…
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Which sensors drones use to fly?
Modern drones utilize many different sensors to archive flight. Some of them are required to fly, some are only optional and they can only improve flight performance. This entry will be a summary of those sensors, with short description and information how UAV utilizes data from them. Gyroscope Gyroscope, or shorter gyro, is the only…
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How to cut Depron
Depron is an amazing material. Light, cheap, waterproof, easy to process and quite durable. Almost everything in RC world can be made from Depron. All one needs is imagination, glue and proper knife. Like I mentioned few times before, I’m cheap, so at the beginning of my adventure with Depron, I was choosing cheap modeling…
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Beitian BN-880 GPS 3D Printed Case
Beitian BN-880 (I’ve bought mine from Banggood) is an excellent, cheap and accurate Ublox NEO-M8N GPS module. I’m using it for last few months and I’m very happy with it. But is has one serious flaw: there are no cases/enclosures for it. So, in most applications it is naked. I’ve decided to fix that and…
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DIY wireless telemetry link for UAV
Telemetry link between UAV (drone, airplane, boat) and laptop/mobile/ground station device can be very useful. Not only to get current drone position, altitude or battery level, but also, when wireless link provides such a possibility, to update drone parameters in-flight. Some radio links, like OpenLRS provides such a possibility out of the box. They include…
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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…
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Video: 6 waypoints automatic mission with INAV
Below is a video I’ve recorder 2 weeks ago, showing almost fully automatic mission performed by INAV. The only “non automatic” phase in this flight was take off. Besides regular nice views, this video presents a feature that will be available in future INAV 1.2: refactored and greatly improved MAGHOLD controller. MAGHOLD known from previous…
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Hands on: Emax SimonK Series 30A ESC
You want to know the secret? I’m cheap. I almost never buy expensive stuff. It’s not that I can not afford it and buy cheapest stuff available. In my opinion, both ways are wrong. I buy things that position themselves somewhere in the middle. Not the cheapest, not “the best” and most expensive? Why not…
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iNavFlight 1.1 has been released
Few hours ago official release of iNav 1.1 has been published. Comparing to few month old version 1.0, there were many changes, including few very very important. In my personal order of importance they are: Default settings for Position Hold and Return To Home has been retuned, so they behave almost perfectly. Take a look…