Telemetry connection question.....

Hi Folks,

I am still very new to all of this but I never do things the easy way....

I already have 3DR radio fitted to my Pixhawk on the Hex I'm building but wanting more, I have a Minim OSD and a Teensy 3.1 telemetry adapter...

I have been told these 3 units can all be "daisy chained" together, ie, GND to GND +5V to +5V and TX to TX and so on....

Is this correct?

Any help with this would be great....


You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –


  • Can anyone explain the difference between TELEM1 and TELEM2?

  • Or... Do I connect My Radio with the Mavlink Telemetry Adapter into "Telem 1"

    And plug my OSD on it's own into "Telem 2"???

    • That looks like it would work.

      Good luck.....

  • Thanks for the replies guys!

    Here is what I'm thinking....


  • Correct - sort of.

    You can connect MinimOSD RX to your telemetry TX.

    Don't connect the OSD TX to the telemetry RX though or you'll get weird stuff happening.

    So, telem1 TX > Radio RX and OSD RX

    In Mission planner there is an option to enable telementry all the time. No harm in clicking that.

    • Hello David.

                       Peter King on you tube has very good videos on connecting teensey,OSD,and your mavlink module.

      Good Luck.

    • I did see this and in fact, that's where I got the board from but he only just skirts over the connection...


This reply was deleted.