Thanks for the input.
We had issues with the GR-12 and just put it in the parts bin.
At present we have moved to JETI systems for all our drones.
So all we had to do was reburn our arduino’s with Mav2Duplex.
Does the oXs support Jeti?
I noticed it was mentioned in the GitHub listing.
So there’s no solution for the GR-12L at the moment?
If that’s so, then I’ll probably have to start from scratch…
Hello to all,
Is there someone who knows where to find the description of the Hott Telemetry Protocol? Sumd I have found but the telemetry protocol seems to be well hidden to me 
Hi,
I cannot upload v1.4.6, took the previous version 1.4.5 which loaded fine.
MAVLink2HoTT works great for me on Arduplane 3.9.6 and Arducopter 4.0.2 using these settings (both on TELEM1 of Pixhawk 2.1 black cube):
SERIAL1_BAUD = 57
SERIAL1_OPTIONS = 0
SERIAL1_PROTOCOL = 1
SR1_ADSB = 0
SR1_EXT_STAT = 1
SR1_EXTRA1 = 4
SR1_EXTRA2 = 4
SR1_EXTRA3 = 2
SR1_PARAMS = 4
SR1_POSITION = 3
SR1_RAW_CTRL = 0
SR1_RAW_SENS = 2
SR1_RC_CHAN = 2
Thank you !
Hello,
I successfully upload v1.4.6 and use it with a GR16 and arducopter 4.0.3 with a Pixhawk 4 mini. I need just to connect the telemetry input (arduino pin3) to the pin 2 of the pixhawk telemetry connector (the 1 is the red +5V).
At the beginning, it was necessary to have the 433 MHz telemetry link established with Qgroundcontrol to get data on Graupner Tx.
After setting following parameters with an USB connection :
SR1_EXTRA1 10
SR1_EXTRA2 10
SR1_EXTRA3 3
SR1_EXT_STAT 2
SR1_POSITION 3
SR1_RAW_SENS 2
SR1_RC_CHAN 2
It works perfectly.
One remark to zdv770 
Without it, using Graupner Tx for Ardupilot UAV won’t be so easy.
Thanks a lot,
Benoit
Yes, I do plan code publishing, but I have to get rid of some garbage in it before.
Thank you for feedback. I’ll see what I can do.
I have to reproduce the problem to make solution, but it works quite well with all hardware I have.
Hello,
we have v1.4.6 on arduino, Pixhawk with PX4, Graupner MZ32 and everything is working fine while UAV is disarmed. The moment when the drone is armed and motors start spinning the 2times/sec flashing switches to very slow flashing (5sec on, 5sec off) and telemetry values on RC are freezing. When disarming again everything works fine again.
Any ideas?
Thanks
Max
Hello zdv770,
Thanks.
We don’t get rid if they’re some garbage in the code.
You could clean it later.
Benoit
Hello,
I plan to replace my MX-16 Tx by a MZ-16 to increase number of channels available. But I wish to keep Telemetry as friendly as with my MX-16. Does anybody have MZ-16 telemetry screenshots with MavLink2Hott interface ?
Regards,
Benoit
