I am using the Hextronic hxt900 called out in the guides. The pinout is where I am getting confused. I know I need to rewire the jack to get the power and the PWM pins in the write locations, I am not troubled by that.

What troubles me is the assigning of the signal pin in the firmware. The EXP3 pinout shows pwm_1 as being pin 5 but the road calls out servo0 to be on pin4, which then in the comments it says pin 5.

Now, as I understand it, there are digital and analogue pins on these boards and it may be calling out pin 4, which is actually pin5. See why I am confused! I cannot find drawing or document that labels this anywhere.