LibrePilot Forum

Development => Firmware General => Topic started by: kennyevo on March 25, 2016, 07:11:08 pm

Title: Telemetry on multiple ports
Post by: kennyevo on March 25, 2016, 07:11:08 pm

Is it possible to output telemetry on multiple ports? Currently my revo outputs the telemetry for the osd on the receiver port, and I'd like to use my flexy port for bluetooth telemetry. (I'd like to use the oplink only for control)

Title: Re: Telemetry on multiple ports
Post by: f5soh on March 25, 2016, 07:19:59 pm

Only one Telemetry port allowed.

You can connect your bluetooth module to the ground Oplink connected to radio and allow "long range" telemetry.

(https://forum.librepilot.org/index.php?action=dlattach;topic=1196.0;attach=2220)

Title: Re: Telemetry on multiple ports
Post by: kennyevo on March 25, 2016, 07:39:49 pm

Hi! Thanks for the reply, but If I'm right, the oplink range is shorter if I use it for telemetry and control, or just the latency bigger for the control if using telemetry too?

Title: Re: Telemetry on multiple ports
Post by: f5soh on March 25, 2016, 07:47:08 pm

Maybe some latency.

What range do you need ?

Title: Re: Telemetry on multiple ports
Post by: kennyevo on March 25, 2016, 07:48:17 pm

Slightly bigger than the vtx range, I think it's now about 2kms.

Title: Re: Telemetry on multiple ports
Post by: f5soh on March 25, 2016, 08:14:17 pm

This range can be done using good antennas, but indeed better with PPM-Only that give extra sensitivity. 

Title: Re: Telemetry on multiple ports
Post by: kennyevo on March 25, 2016, 08:46:16 pm

I think I'll keep using the oplink for telemetry and control, and if I need more distance just change it to ppm only and watch the telemetry on the osd :D

Title: Re: Telemetry on multiple ports
Post by: kennyevo on March 25, 2016, 09:03:44 pm

One more issue: Do you know why doesn't my oplink mini pair with my revo if I power it from an external battery and not an usb cable?

Title: Re: Telemetry on multiple ports
Post by: f5soh on March 25, 2016, 09:17:23 pm

No, sorry. I don't have a crystal ball here :)

Post Oplink config screens on both sides

Title: Re: Telemetry on multiple ports
Post by: kennyevo on March 25, 2016, 09:33:50 pm

The pairing is good, it's working if I power it up with an usb cable and an external power source too (external needed for rx and bt). Maybe the voltage is too low? (it's a 1S lipo battery)

Title: Re: Telemetry on multiple ports
Post by: f5soh on March 25, 2016, 09:41:15 pm

Likely too low when voltage drop using 1S
+5V or 2S battery voltage are better choices.

Title: Re: Telemetry on multiple ports
Post by: kennyevo on March 25, 2016, 09:54:44 pm

Hm, I think I'll use a power bank for it :D