#define HEATER_0_PIN PB4 // Hotend #define HEATER_1_PIN PH5 // Heated Bed
Early factory versions of this board shipped with thermal runaway disabled in the firmware. It is highly recommended to flash the latest version of Marlin firmware to ensure fire safety.
The most interesting and valuable "paper" (document) for this topic is the created by the 3D printing open-source community. Creality V2 2 Board Diagram
Before analyzing the diagram, we must understand the hardware. The "V2.2" refers to Creality’s proprietary 32-bit mainboard, officially labeled . (Note: The search term "V2 2" is a common truncation of "V4.2.2"). It replaced the older 8-bit boards (1.1.4, 1.1.5) and brought three major improvements:
The diagram clearly identifies the heater cartridge terminals (HOT0) and the MOSFET location. This helped me trace a blown MOSFET in under 10 minutes. #define HEATER_0_PIN PB4 // Hotend #define HEATER_1_PIN PH5
Ground, 5V, Signal (Z-Min), Servo Pin. 4. Key Troubleshooting and Pinout Tips
The Creality (and V2.2.1) mainboard is a popular 8-bit controller found in machines like the CR-10S series, Ender 5 Plus, and Sovol SV01. It differs significantly from the newer 32-bit V4.2.2 boards used in the Ender 3 V2. Port Layout & Connectivity Before analyzing the diagram, we must understand the
Check the 5V and GND wires on the servo header. A reversed connection can damage the BLTouch. 5. Upgrading the V2.2 Board
Unlike newer boards with a dedicated 5-pin "Touch" port, the V2.2 typically requires using the headers or specific IO pins for auto-leveling.
Powered by the Atmel Mega 2560 , an 8-bit chip that is highly compatible with Marlin Firmware .
Fans are generally split into "always-on" (hotend) and "controlled" (part cooling).