About

Gender

Male


Please tell us a bit about your UAV interest

Mainly interested in telemetry downling


Hometown:

Denmark


Activity Feed

Carsten Groen replied to DavidLee's discussion 3DR Radio Telemetry design schematic
"I have had mixed results with the HK versions so made my own for the "ground end", using FT231XS chip (works better for me on Android that CP2102). Uses HM-TRP module (I already make modules for my airborne system.
My frustrations are over ;)"
May 24, 2016
Carsten Groen replied to Carsten Groen's discussion Experience with Bosch Sensortec BNO055 IMU ?
"It's not for a drone ;)
But apart from that, yes it works very nicely! The MPU9150 I had here has since gone to the bin !
I have BNO055 in 4 projects now"
Feb 25, 2016
Carsten Groen replied to Aussie in AZ's discussion 3DR telemetry no longer supported by 3DR....options?
"I have had more than 50 modules (433 MHz) from HK. I could get a few of them to connect to 3DR radios, some of them only sporadic, most of them no connection at all. The HK modules would happily connect with other HK modules.
I have my own developed…"
Jan 27, 2016
Carsten Groen replied to Jack Rogers's discussion HopeRF-TRP 3DR MavLink Attack
"Unfortunately does not support my version of windows (Win 10 64bit)"
Jan 12, 2016
Carsten Groen commented on Jake Stew's blog post 915 MHz 3DR Radio Tuning With $7 SDR Spectrum Analyzer! Spectacular range boost!?
"Excellent Jake, very nice!
I'll tune my spectrum analyzer onto my radios in a couple of days here and see how bad they behave (I have a large selection of 3DR, HK and HM-TRP modules on my own hardware).

Suggestion, how about making a "hidden" ATSxx…"
Jan 9, 2016
Carsten Groen replied to Jack Rogers's discussion HopeRF-TRP 3DR MavLink Attack
"Hi Jake,
yeah I know that is probably the proper way to do it, but I just can't stop thinking that "if"....
I had it compile ok, just had some strange problems with make.exe that is not compatible with the one it is made with....."
Jan 9, 2016
Carsten Groen replied to Wes's discussion Effects of frame design on barometer performance ( and all other non 3.3 specific AC questions)
"I have sort of the same problem on my own boards (used in turbine powered modelplanes). I have a MS5611 on a board, and sometimes I see altitude drop because of pressure buildup inside the airframe (depends on the type of plane etc). I had a friend…"
Jan 7, 2016
Carsten Groen replied to Jack Rogers's discussion HopeRF-TRP 3DR MavLink Attack
"My thoughts exactly Jake!
I'm still struggling with the compile environment for the radios, I have it almost up and running (some problem with the version of make.exe I'm running (doing it all under windows)
Once I have enough spare time..."
Jan 7, 2016
Carsten Groen replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"A good place (and reasonable priced) if you are in Europe:
https://materialise-onsite.com/en"
Jan 3, 2016
Carsten Groen replied to Jesus's discussion Sik 2.x in 3DR radio
"I have tried this with success (non flight, just in lab) on 2 x 3DR radios and a HM-TRP module on my own hardware.
Used this firmware (MPSiK 2.5)
Follow the description about setup etc from the RFD users guide (Node numbers etc)MPSiK V2.5…"
Dec 30, 2015
Carsten Groen replied to Tom's discussion Trigger Radio Status Message Injection
"A small write-up describing what I have found (probably errors in it!)


Hope RF radio ramblings.pdf"
Dec 14, 2015
Carsten Groen replied to Tom's discussion Trigger Radio Status Message Injection
"Hi Tom,
I'm doing a writing on the stuff and will link here once it is done.
I do a lot of telemetry related stuff, first post (post #16) here shows some of it:
http://www.rcgroups.com/forums/showthread.php?t=2489886&page=2"
Dec 14, 2015
Carsten Groen replied to Tom's discussion Trigger Radio Status Message Injection
"Got it now (and as a bonus I found out some things about Mavlink ;)
I need to send the complete frame to the radio to get it to react:
FE 09 4E 01 01 00 00 00 00 00 02 03 51 04 03 1C 7F

The radio answers back with two frames:
FE 09 0A 33 44 A6 00…"
Dec 14, 2015
Carsten Groen replied to Tom's discussion Trigger Radio Status Message Injection
"I need to send the full frame to the radio in order to get it to respond anything. I'm using Sik 1.9 on both ends (3DR radio at one end (where I inject the message) and a Hope-RF in my own module in the remote end.
Independent of the remote radio is…"
Dec 14, 2015
Carsten Groen replied to Tom's discussion Trigger Radio Status Message Injection
"Ok, got it.
On the physical line, I need to send:
0xFE 0x09 0x4E 0x01 0x01 0x00 0x00 0x00 0x00 0x00 0x02 0x03 0x51 0x04 0x03 0x1C 0x7F

This will give the answer back:
FE09013344A600000100D9D764232BB33BFE090133446D00000100D9D764232BD249
Now just to…"
Dec 14, 2015
Carsten Groen replied to Tom's discussion Trigger Radio Status Message Injection
"Tom,
I have a feeling that I might not understand mavlink completely (is there some framing to take place/CRC etc?)...
I have set both the radios to:
S1:SERIAL_SPEED=57 S2:AIR_SPEED=48 S3:NETID=25 S4:TXPOWER=20 S5:ECC=1 S6:MAVLINK=1 S7:OPPRESEND=1…"
Dec 14, 2015
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