BIGTREETECH EBB 36 V1.2 CAN bus

Looking to streamline your 3D printer's tool head without all the fuss and extra weight? Look no further than BTT's EBB42 CAN Bus Expansion Board! With this bad boy on printhead, you'll get an on-board TMC2209 extruder motor driver and cut down on pesky wires. Efficiency never looked so good!  Features With BOOT and RESET buttons reserved, users can update the firmware via DFU mode by USB. Added protection circuit on the thermistor avoids burning the main control chip caused by leakage current from the heating rod. Users can select the thermistor's pull-up resistor values through a jumper wire for PT1000 support (2.2K pull-up resistors), which makes it convenient for DIY. Connect the USB with a jumper cap to get it powered on, which effectively isolates the main control board DC-DC from USB 5V. Reserved I2C interface allows for filament broke and clogged detection, and supports other DIY functions. Added anti-flyback diodes on the heating rod and fans' ports effectively pr