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--- projects:steppermotor [2013/01/06 11:14]
elger created
+++ projects:steppermotor [2013/01/06 12:23]
elger
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 The Wiki page on [[http://en.wikipedia.org/wiki/Stepper_motor|stepper motors]] does an excellent job at documenting the motor.
+====== The components ======
+This first test setup has three components, an Arduino (clone), A stepper driver and a stepper motor.
+{{ :projects:steppermotor:stepper-motor_overview_text.jpg?600 |}}
+The Arduino clone is just like a regular Arduino but this one has a serial port and the labeling of the ports is more like the real Atmega328 pin mapping.
+{{ :projects:steppermotor:arduino-clone.jpg?200|}}
+The controller board was a bit of a chalange because I tried to design it myself with the two chips that were designed specifically for this: the L297 STEPPER MOTOR CONTROLLERS[[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00000063.pdf|L297 STEPPER MOTOR CONTROLLERS]] and the [[http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00000240.pdf|L298 Dual Full Bridge Driver]. This is no simple task if you need to do it on a single layer PCB. So in the end I just bought the simpler L298 driver board so I could get started.
+{{ :projects:steppermotor:l298n_based_dual_h-bridge_controller_board.jpg?200|}}
+The steppermotor I chose also came from e-bay, it works on 12V and it is unipolar. In the end the problem with this motor is that the wire coloring is different from any data-sheet I could find. So after a lot of searching and testing I came up with the right sequence.
+{{ :projects:steppermotor:stepper-motor.jpg?200|}}
+Coil A : Blue
+Coil B : Yellow
+Coil C : Green
+Coil D : Red