Just wanted to post that I found BLTouch bed leveling works really well with K8200 and Martin 2.0 bug fix version. The wiring is quite straightforward with 5V and GND coming from the extension pins on the board and BLTouch control from the SS pin on that extension set. (pin 53). The black and white wires connect to the zmin connector with the black on the - pin and the white on the third pin.