-
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…
-
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…
-
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…
-
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…
-
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…
-
HC-12 433MHz RF serial module range test
As I mentioned in my first post about HC-12 433MHz radio modules, I’ve put my interest in them for telemetry purposes. While S.Port telemetry I’m using in FrSky Taranis radio might have higher range than HC-12, it is closed environment. Since $10 for a pair of HC-12 is not much, I’ve decided for more open…
-
The best way to mount LiPo on a drone: 3M Dual Lock
LiPo battery, as the heaviest single element of any racer quadcopter, is mostly the first one to fell off during crash. Or displace in high-g maneuvers. Or simple fell off in flight. Like on this picture below I’ve found on Reddit. Grrrr… for sure this is something I would like not to see personally again.…
-
Hands on: RunCam Swift FPV Camera
Life of my previous FPV camera was rather short. RunCam PZ0420M died after a crash only few weeks after purchase. Well, it happens. As my next camera I’ve chosen RunCam Swift for following reasons: I like RunCam, Swift is small and it has double mount! 50 dollars and 4 weeks later it arrived.
-
HC-12 433MHz wireless serial communication module configuration
Description HC-12 are cheap 433MHz wireless serial port communication modules with a range up to 1800m in open space. They are SI4463 based. Each costs about $5 when bought from China, and 2 of them can create wireless UART link that can be used, for example, to transfer telemetry data from UAV. Or drive IoT…