louise at January 8th, 2014 16:26 — #1
Is there any OSD for the pixhawk, I have seen a couple like pigeon which has its own gps etc but that seems pointless when everything is already onboard.
unmannedtech at January 9th, 2014 11:41 — #2
I believe you can use MinimOSD with pixhawk, although I don't think there is any official documentation on connecting it with pixhawk right now, but should be in one of the telemetry ports.
You will be able to connect MinimOSD via one of the telemetry ports (You might need to change some parameters of the Telem 2 port in mission planner if you connect the OSD to this port on the Pixhawk)
As of APM:Copter version 3.1 firmware, there are patches to enable uartD in rover/plane/copter. This enables the secondary telemetry port on Pixhawk, and also allows for a secondary telemetry port on PX4 and SITL. The patches include some parameter changes, so may require some mods in MissionPlanner and other GCS implementations.
- the SR3_* parameters are now SR1_*
- there are additional SR2_* parameters for boards that have a
secondary telemetry port
- the SR0_* parameters are unchanged
- the SERIAL3_BAUD parameter is now named SERIAL1_BAUD.
- there is a new SERIAL3_BAUD parameter on boards with a secondary
- the SERIAL0_BAUD parameter on rover and plane is unchanged
ianlyons at January 21st, 2014 22:35 — #3
There's some discussion about enabling Telem 2 for MinimOSD. https://github.com/diydrones/ardupilot/issues/762
Looks like the code is available in a beta version of 3.1.1.
I've just received my MinimOSD and will try connect it to my Pixhawk powered DicsoPro. Will write it up if it works.
louise at January 21st, 2014 23:03 — #4
Great, that would be a big help, with me just entering into the fray I am a touch scared of screwing it all up
iamrichardevans at January 29th, 2014 09:55 — #5
I am also keen on connecting the minimOSD to the pixhawk TELEM2 port.
Do you know where to find the pinouts for the telemetry port?
unmannedtech at January 29th, 2014 16:02 — #6
Here is the pinout for the Pixhawk Telemetry ports. When I labelled Radio TX, this is actually the telemetry ports RX, and Radio RX is the telemetry ports TX. This is because the radio TX needs to connec to pixhawk RX, etc..
For Serial 1 (Telem 1), Serial 2 (Telem 2) and Serial 3 (GPS)
Pins: 6 = GND, 5 = RTS, 4 = CTS, 3 = RX, 2 = TX, 1 = 5V where the red wire is pin 1.
Hope that helps
iamrichardevans at January 29th, 2014 19:53 — #7
Thanks for the info. Had a few conflicting bits of info. Will wire it up tonight and post back
iamrichardevans at January 30th, 2014 20:15 — #8
All working as expected with 5v, gnd RX and TX connected. Thanks for the help and advice!
ianlyons at February 11th, 2014 16:56 — #9
Well, managed to finally get it working - here are some tips ...
- Used rduCopter V3.1.2-rc to enable the telem 2 port
- Plugged the MinimOSD into the telem 1 port - otherwise some parameters were missing
- Plugged the telem radio into telem 2