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17 Apr 2024 17:15:13
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3d - Printworx

Pixhawk Power to Sbus

Started by Mslater, Friday,April 22, 2016, 20:38:34

Previous topic - Next topic

Mslater

First off - I';m back - and flying again !!!

After a crash and identified ESC fault All ESC have been replaced on the Octo.

The replacement ESC are Opto so the pixhawk is now being powered purely by the pixhawk power module.

My RX is a futaba Sbus - It';s plugged in the RC port.

When I connect USB everything powers up as expected including the RX and it works and calibrates however when

I remove USB the RX power is lost - Everything else is fine.

Is there a software parameter in 3.3 to power the RX that needs to be turned on ?
Why is there no power to the RC in port when powered from the power module ?
Duvet - The quickest way to say Duck Down !

Rammylad

Hi,
I use a Pixhawk on one of my helicopters and the only connection to the Rx is by the Sbus cable and the Rx powers up. I also have power to the servo rail via the esc this provides power to my servos and also is another power source to the Pixhawk should the Power module fail, providing the voltage is correct it will switch to that power source. They recommend fitting a Zenner diode to the rail to make sure that the voltage from the Bec or Esc is the correct voltage otherwise it won';t switch over.
Tony