BTT-SKR-ME3-V3The BIGTREETECH SKR Mini E3 V3.0 is a 32-bit silent mainboard tailored specifically for the Creality Ender 3, Ender 3 Pro, Ender 5, and CR-10. Powered by an ARM Cortex-M0+ STM32G0B1RET6 microcontroller, it incorporates onboard TMC2209 silent stepper motor drivers operating in UART mode for ultra-quiet operation and sensorless homing.