Recent content by larsesilen

The battery seems to work perfectly. I think h-elsner's comment is very important! I haven't used Yuneec's own charger for years always using an intelligent charger for charging, balancing and storage. I will mark the repaired battery accordingly to remember never to charge with Yuneec's...

I got a LiPo battery from Aliexpress the type is Teranty 4s 6500mah 60C. The physical dimensions of the battery is 136x43x42 mm which just fits the original battery case. Finding a battery pack 134x43x42 would be optimal. I emptied the broken battery through a 10 ohm resistor before carefully...

I have a H480 that I recently crashed into the top of a fairly high tree. Together with some friends we succeeded to get it down. There was some obvious damage after a fall from 22 meters. I tested the battery that had been drained until the drone shut off and I was able to charge it without...

I have been thinking of rebuilding a Q500 GoPro drone replacing the main board with a modern flight controller and replacing the camera gimbal with with some modern 3-axis gimbal that is compatible with a modern flight controller. I know that I also, most probably, will have to replace the...

I did a new test flight actually two flights. In the first a Typhoon H480 with a CGO3+ camera was used. Originally there were 5-motor faults on the H480 but changing the main ESC board solved the problem probably caused by a damaged MOSFET power transistor on motor #1. The video problem with...

In the middle of the night I had the opportunity to test three different drones/cameras against the CGO app under Android 14 on a Lenovo P11 Second Gen. The results are: Typhoon H480 with a CGO3+ camera: V0.1.0.0062 most recent Network Error , got connection once ...

I have tried the CGO app on a Lenovo P11 second generation running Android 14. The newest version didn't work for me but at least the version V0.1.0.0049 seems to work OK with a Typhoon Q500 with a CGO2+ camera. I will try to get the program to work with a Q500 4k and Typhoon H480 and report the...

Thanks for the info. I think I will simply start doing a few more flights using the orientation information above. It is perfectly possible that I found the "hole" in the radiation pattern due to unsuitable orientation. Again ... first try to replicate the error ... if it works don't fix it :).

Thanks, yes I have the mushroom antenna and probably that was the reason. I will check antenna alternatives. Of course this may be a non-problem with my normal flying and what I saw only an unfortunate glitch.

So we have been working in the same technical area, Telecom. I worked for Ericsson in product development and as an innovation coach in Kirkkonummi slightly more to the west.

I got a set of new propellers yesterday. Today the weather is fairly OK so it is possible to do flight test with the Typhoon H480 where I replaced the mainboard/ESC. The GUI program seemed to work Ok but I had some problems binding the drone to the controller when I had created a new H480 model...

The damage to super magnets in the gimbals is a very interesting topic. I happened to see an article that possibly explains the damage mechanism. Notice that I haven't had any of those problems so I haven't disassembled the gimbal (if it works don't fix it) so it is perfectly possible that I...

Thanks. This was also my guess after measuring the original capacitors. I will replace the capacitors with better ones if I succeed in replacing the motor #1 MOSFET #2. I did a new test flight ... five motor error again and a broken propeller :) . I decided to replace the main ESC board. This...

I happened to see a warning regarding the 330uF electrolyte capacitors, there are 6 black capacitors in a Typhoon H480. I replaced all of them and measured the capacitance, ESR and VLOSS of both the old and the new capacitors. All the old capacitors had values clearly below 330uF (5-10%). I...

By the way very nice to see a program written i Lazarus/Free Pascal. I have been using Lazarus for almost all programs needing a GUI the last few years and I have been reading the source with great interest.