See Hacks to the RepRap Extruder Controller v2.2 for details of how to use a K-type thermocouple rather than a thermistor with this board.See Microcontroller Firmware Hints - Driving Steppers with the Extruder Controller V2.2 for details of how to drive stepper motors with this board.WARNING!! This board produces an awfull whine in the extruder motor if you use a stepper-motor due to the fact that it has been designed for DC motors and a hack is applied to use it as a stepper controller. It is plug and play with the RepRap Motherboard.It mounts directly to the Pinch Wheel Extruder!.Polarized ICSP header for simple, easy programming.IDC header for connecting a Magnetic Rotary Encoder.RS485 connection for noise-free communications with the motherboard.A temperature sensor circuit for reading the standard 100K thermistor.Control 2 motors, or control one stepper motor. 2 x H-Bridges capable of up to 2A each.Perfect for heaters, fans, solenoids, etc. ![]() 3 x MOSFET drivers for controlling up to 14A 12V.Onboard atmega168 - program it just like an Arduino because it is an Arduino.8.3.15 C1, C2 - 100uF electrolytic capacitor.8.3.14 C8 - 10uF electrolytic capacitor.
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