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Connecting CRSF elrs receiver

Posted: Tue 31. Oct 2023 21:03:45
by jdowdlejr
As the manual shows how to connect CRSF, it does not seem to advise the details of the voltage on the power line to go to the receiver. Some of the new elrs receivers only list their power supply as 5V.

Bottom line: will the Rudder out line from Spirit GT supply power with is regulated to 5V, or will it pass the HV servo voltage coming in from the ESC?

I dont want to overstress the receiver causing failure, and I am also questioning them on the acceptable voltage range of operation.

thanks for any info, and I recommend more details be provided, unless I have missed them.

Re: Connecting CRSF elrs receiver

Posted: Wed 01. Nov 2023 8:16:48
by ZeXx86
Hello,

Spirit unit will pass BEC voltage to the receiver which is very common behavior.
I believe that the most receivers will handle at least 7.4V. But of course it is better to ask manufacturer of the receiver.