View source for Control a Stepper Motor with Serial over USB


=Hardware=

[[File:IMG_0521_small.jpg | right | 200px]]

* Stepper Control board either for [[Stepper_control_generic | generic]] or [[Stepper_control_v2 | A4988]] drivers.
* FTDI to USB adaptor
* A computer
* A Stepper Motor

=Software=

[[File:IMG_0573_small.jpg | right]]

* A serial port terminal. To name a few: Cutecom Screen Hyperterminal Putty Minicom 
* [http://www.arduino.cc/en/main/Software Arduino IDE] (if re-programming needed)

=Proposed Sketch=

The control board host an ATtiny84 chip. This chip can be programmed with Arduino IDE. The following sketch can be used as a base for controlling the motor. 
[http://lechacal.com/stepper_pilot/stepperBoardv3_serial_v1_0.ino Serial sketch v1.0]<br>

==Default communication settings==

Baud rate: 9600 Data bits: 8 Handshake: None Stop bits: 1

==Operation commands==

All commands are described in the table below:

{| class="wikitable"
|-
! Command
! Description
! Example
|-
| s
| Start the motor.
| s
|-
| x
| Stop the motor.
| x
|-
| f
| Set Direction to forward.
| f
|-
| r
| Set Direction to reverse.
| r
|-
| c
| Toggle continuous mode. When continuous off the motor will run for a number of steps only.
| c
|-
| m<x>
| Set the number of step to move when continuous off.
| m200
|-
| <speed>
| Set the delay in microseconds between each steps (speed control). 
| 1500
|-
| d
| Prints configuration. Format will be <speed>/<steps>/<continuous>/<version>
| d
|}