"@Emin: You can manually control the servo position through the lw20, which makes it easy to point it in the same direction the drone is moving - provided you have a servo that can achieve that range of movement.
As for the landing legs, any fixed…"

"Hi Neal,

I can't confirm if the SF11 will run on the PX4 stack, but from what I can see it might be possible. On this page: http://dev.px4.io/flow_lidar_setup.html they say: "SENS_EN_SF0X Set to 1 to enable lightware distance measurements (e.g.…"

"Thanks for the input Cala. I'd love to hear how your flight goes."

"Hi DG,

To integrate the SF11 with the Pixhawk you only need to wire it up and set some parameters. You can visit http://ardupilot.org/copter/docs/common-lightware-sf10-lidar.html for more info on configuration.

AC 3.4 does have lidar terrain…"

"Hi Jason,

I've been through the MinimOSD config tool and I don't see Sonar Range either, it looks like you will need an alternative OSD or speak to developers who work with MinimOSD.

I see you've already asked…"

"Hi Jason,

The SF11 (and any other rangefinder) will output to Sonar Range. Is MinimOSD able to display that parameter?"

"There is a 'Zero datum offset' setting in the SF11 settings menu (Via USB). It's possible this may have been changed to something other than the default 0.00m.
Could you also confirm the distance error (using the USB connection) against some known…"

"Oh, and RNGFND_SCALING"

"Hi Cool Dude, can you verify what settings you are using for the following parameters:
SERIAL4_PROTOCOL
SERIAL4_BAUD
RNGFND_TYPE
RNGFND_MIN_CM
RNGFND_MAX_CM
RNGFND_GNDCLEAR"