docs_xyzprobe_wiringgeneric
The OpenBuilds XYZ Probe Plus is designed for compatibility with nearly any CNC controller that has a Probe input. To ensure its functionality, you should connect at least two wires, although we recommend using three for the best performance.
Pin on Probe connector Recommended Wire Color Pin on your controller Notes
GND Black GND Ground connection for signal and power V+ Red VCC/V+ Optional 3.3v, 5v or 24v power source to match the required input voltage of your controller's input pin. If your controller does not have this available, you can leave this disconnected and the probe will still work. The power is used for the LEDs and noise filtering circuitry SIG Blue PROBE IN Probe input signal pin which is read by your controller to determine if the endmill is making a connection to the Plate (which is in turn connected to GND, completing the circuit)
Follow color code indicators along with the Pinout table above
Controller Notes
\ Connect GND, Signal and 5V and Set $6=0 in Grbl Settings
xPro v3
\ Connect GND, Signal and optionally 5V, Set $6=0 in Grbl Settings
xPro v4