XK X8 Help

[WriteCodeEveryday]

I have an XK X8 that came included with an XK X450

I have checked and there is no external connections (RC Trainer, USB) and the Futaba WSC-1 doesn't work because they made their controller actually incompatible with S-FHSS so I'm having to directly tie into the board here.

On the board, I have the following

• I have a switch with it's 3.3v ref and CHA1 pads.
• I have a three pole switch with GND, KEY and H pads.
• Board contains CH1, CH2, CH3, CH4 pads near the potentiometer connections.
• A whole bunch of K pads near where the trim is located.
• A CLK, DAT, CS, LED and GND near the connection to the LCD (I assume it's driving it)
• A GND, DAT, CLK, RST, VDD near the main SOC.

What is your recommended method of wiring this? Which is the recommended Arduino board? Is there a way to just add an RC trainer port here?

XK has literally upset me so much with this that I am doing just to prove that it's possible for it to be done.

[Cleric-K]

Are you sure this receiver supports any kind of digital protocol? Could it be that it only supports the PWM CH1-4?

If you would use it with Betaflight, for example, how would you wire it?

[WriteCodeEveryday]

@Cleric-K I am 100% sure this supports nothing....

X450 does not run Betaflight and it runs a single board that does FC and ESC.

[Cleric-K]

I see. Well, I guess your only chance is to read the PWM signals from the CH pads. Before we try to make it work with vjsf, maybe you should experiment a little. Look at this https://www.youtube.com/watch?v=UZKxUFkwCc8

Don't go for the interrupt version. The pulseIn should be enough. You can real only one channel at a time. The goal is to test them one by one and see if anything useful comes out the CH pads and possibly other pads (if your controller has some switches).

[Cleric-K]

If the CH pads are indeed PWM signals, I've made an Arduino sketch to try: https://github.com/Cleric-K/vJoySerialFeeder/tree/master/Arduino/Pwm_to_ibus