@Dronodev Using the M0065 on a UART on the WiFi add-on board may be the most straightforward way to do this. We've never tried to set one up like that but, in theory, it should work if configured correctly in px4. There is no direct way right now to send the RC channel PWM input out the VOXL esc PWM output. There are a number of different ways to approach that so we'll take a look and see if we can come up with something in the next couple of weeks.
D