CAUTION: Avionics power low: 4.67 Volt

[PaulEden]

I notice this entry in the logs a few times. "CAUTION: Avionics power low: 4.67 Volt" It's in green, so counts as a 'tip' not and 'attention', but I thought I'd investigate anyway.
A search doesn't turn up anything definitive.
Should I be concerned?

 

[Steve Carr]

That is a normal message on the H Plus and of no concern.

 

[PaulEden]

Thanks Steve.

 

[jannislh]

As @Steve Carr said this is nothing to worry about.

Just to explain the issue: The H Plus is based on a PX4 flight controller which usually gets a 4.9V to 5.5V input voltage. Under certain circumstances the voltage can drop a little. The PX4 is designed to work with any voltage between 4.1V to 5.7V. In other words there is nothing to worry about unless the voltage drops even lower.

 

[PaulEden]

Excellent. Thanks guys.
My searching did reveal that the software open source, but I got scared after reading some of that stuff.

 

[jannislh]

Don't worry it is pretty reliable. I have a build a quadcopter using the predecessor of the PX4 and it worked perfect. Never had any issues which weren't caused by mistakes I made like flipping the compass module which obviously caused severe problems. But anything like that will not affect you.