I see in the common-Pixhawk Overview that it comes with a "External power supply similar to existing 3DR power brick". Anyone know if the power brick supports higher voltages than the standard 3DR power brick which only supports up to a 4s LiPo (18v max) battery? I would like to use the Pixhawk on a multicopter with a 6s battery and was wondering if I could avoid a separate battery or ubec to power the Pixhawk.
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Hi, Tyler,
The 3DR power brick which comes with the Pixhawk (at least as of January 2014) is the same one (or has the same specs) they have been selling for a while. It is still only useable up to a 4s LiPo battery. I finally received my PixHawk with the 3DR power brick and forgot about this question was unanswered in the forums.
Hi, Tyler,
The AttoPilot sensor does work. I purchased that and am using it with an APM 2.6. The AttoPilot is only for voltage and current sensing though. It does not supply the 5v power for the APM or Pixhawk.
I am using both the AttoPilot sensor for current and voltage sensing, and then the 3DR Power brick for supplying the 5v to the APM. But in order to use the 3DR power brick, I needed to step down from the 6s power to something the 3DR power brick would handle.
My configuration is laid out like this:
6s battery -> AttoPilot current sensor -> uBec 6s to 12v -> 3DR power Brick -> APM.
When configuring the APM, the current/voltage is read from the AttoPilot current/voltage sensor off the APM a1, a2 pins, while the 3DR power brick is just used to get the 5v required for the APM.
Kind of a kludge, but it works.