About the Products： ERB is a 3D printer multi-color control board based on RP2040, mainly used in Enraged Rabbit project. It can also be used in other two-axis stepper motor control situations.   V2: *Add CANBUS interface *Add 20*30 heat sinks *Replace with a 4Pin connector, which can be quickly plugged in and *out, for Power & USB/CAN. *Add optional USB and CANBUS interfaces *Add status indicator for Katapult bootloader or status indication. *Preset thermistor temperature measurement circuit *12 x IO for gate sensors/switch *Onboard integrated heat sink   More info： https://github.com/FYSETC/FYSETC-ERB