Community-maintained repositories, such as Marlin-CR10S , provide pre-built firmware images for the CR-10S V2.2 board. This is an excellent way to update outdated and unsafe Marlin 1.x firmware to a modern Marlin 2.x build, which includes enhanced safety features like thermal runaway protection.

Ultimate Guide to the Creality V2.2 Board Diagram: Pinouts, Upgrades, and Wiring

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The Creality V2.2 mainboard (often labeled as V2.2 or V2.2.1) is a heavy-duty 8-bit control board famously used in Creality’s large-format 3D printers like the CR-10S, CR-10 S4, CR-10 S5, and the CR-20.

Fans are generally split into "always-on" (hotend) and "controlled" (part cooling).

To help tailor this guide or troubleshoot a specific issue, let me know:

When compiling firmware for this board in VS Code (with PlatformIO), use the following environment configuration: mega2560

Screw terminals delivering 24V to the heated bed, controlled by a high-current MOSFET.

When compiling Marlin 2.x for this board, use:

| | ATmega Pin | Notes | | :--- | :--- | :--- | | X Stepper | Step: PF0, Dir: PF1, Enable: PD7 | | | Y Stepper | Step: PF6, Dir: PF7, Enable: PF2 | | | Z Stepper | Step: PL3, Dir: PL1, Enable: PK0 | | | Extruder (E0) | Step: PA4, Dir: PA6, Enable: PA2 | | | Heater 0 (Hotend) | PB4 | PWM-capable pin | | Heater 1 (Bed) | PH5 | PWM-capable pin | | Thermistor 0 (Hotend) | PK5 | Analog input | | Thermistor 1 (Bed) | PK6 | Analog input | | Fan 0 (Part Cooling) | PH6 | | | Fan 1 (Hotend Fan) | PH4 | | | X Endstop | PE5 | Active low, ^ pull-up | | Y Endstop | PJ1 | Active low | | BLTouch Control | PB5 | Servo control pin | | BLTouch Sensor | PD3 | Sensor pin with pull-up | | Neopixel IO | 4, 5, or pin 27 | Requires simple firmware setup | | Filament Runout | Pin 4, 2, or 27 | Typically uses FILRUNOUT_PIN in firmware |

Before diving into the physical layout, it is important to understand the hardware limitations and capabilities of this board: ATmega2560 (8-bit processor)