Because BLTouch probe and Z‑endstop share PC14, you must:
The V2.2 board layout is designed for high compatibility with standard Creality accessories. Key connection areas include: Motor Ports: Creality V2 2 Board Diagram
Creality-Schematics / Creality-Board-V2.2CR-10 v2.2 Schematic.pdf that was leaked/reverse-engineered by the community.8-bit Atmega 2560 (supports larger firmware like Marlin 2.0). Input Voltage: 12V / 24V DC. Understanding the Creality V2 2 Board Diagram: A