Help! Is PixRacer Rx input 5V tolerant?

I am wiring up a PixRacer V 1.0 using a FlySky FS-iA10B or FS-iA6B receiver.

The wiring diagram for the PixRacer shows receiver input as PPM at 3.3V.

I do not have any receivers with 3.3V output.

Is the PixRacer input 5V tolerant or do I need to use a level shifter (which requires 5V and 3.3V supplies) ?

Ten extra points to anyone who can point me to wiring up a FlySky FS-iA10B or FS-iA6B :wink:

Thanks to all.

HI, I really don’t know if the pixracer supports 5V, but just in case, you don’t need to put a level shifter, just put 2 or 3 diodes in serial way at the input pin of the pixracer, it dops down 1.4 or 2.1 Volts, simply, cheaper, lighter and failsafe than anything.