This board controls all of the functions of the extruder. Features of this controller include: monitoring the temperature of the hot end, heating the hot end, providing current to a heated table, fan control, and communicates to and from the 3D Printer main board and Arduino Mega pair.
This extruder controller has connections for a heater, thermister or thermocouple (for sensing the hot end temperature), an RJ-45 to connect to the 3D Main Board, 12 volt terminal, fan connection and an extra terminal for other purposes.