Difference between revisions of "Lesson 38--Microduino Stepper Motor Drive"

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(Created page with "{{Language|第三十八课--Microduino 步进电机驱动}} {| style="width: 800px;" |- | ==Objective== This lesson will show you how to control the stepper motor by Microduin...")
 
 
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==Objective==
 
==Objective==
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This lesson will show you how to control the stepper motor by Microduino A4982 module, and welding the step motor control board.
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This lesson will show you how to control the stepping motor by Microduino-Stepper module, and welding the step motor control board.
 
==Equipment==
 
==Equipment==
 
*'''[[Microduino-Core]]'''
 
*'''[[Microduino-Core]]'''
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*'''[[Microduino-FT232R]]'''
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*'''[[Microduino-USBTTL]]'''
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*'''[[Microduino-A4982]]'''
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*'''[[Microduino-Stepper]]'''
 
*Other equipments:
 
*Other equipments:
 
**USB cable     
 
**USB cable     
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==Stepper motor==
 
==Stepper motor==
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*Connection method for stepper motor：
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*Connection method for the stepping motor：
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Connect the stepper motor to Microduino A4982 module:
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Connect the stepper motor to Microduino-Stepper module:
 
**Four wire two phase stepper motor has two sets of coil A and B, each group coil's resistance is very small, only a few ohm. A and B group is absolutely insulation and disconnected. Measured with a multimeter, connected is a set;
 
**Four wire two phase stepper motor has two sets of coil A and B, each group coil's resistance is very small, only a few ohm. A and B group is absolutely insulation and disconnected. Measured with a multimeter, connected is a set;
 
**After measured group A and B, connect one group coil to OUT1A and OUT1B, the other group coil connects to OUT2A and OUT2B;
 
**After measured group A and B, connect one group coil to OUT1A and OUT1B, the other group coil connects to OUT2A and OUT2B;
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**By changing the MS1 & MS2 to change the stepping mode (Microduino A4982 default uses 1/16 step mode).
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**By changing the MS1 & MS2 to change the stepping mode (Microduino-Stepper uses 1/16 stepping mode by default).
  
 
*Angle calculation：
 
*Angle calculation：
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Stepper motor parameters：1.8deg/slep, that is stepper motor moves one step turned every 1.8°.
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Stepper motor parameters：1.8deg/step, that is stepper motor moves one step turned every 1.8°.
  
 
**Step number=360/1.8*16=3200 step
 
**Step number=360/1.8*16=3200 step
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[[File:Stepper_motor.jpg|600px|center|thumb]]
 
[[File:Stepper_motor.jpg|600px|center|thumb]]
  
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==Debug==
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==Debugging==
 
*Step 1：Crop the pegboard as specified size；
 
*Step 1：Crop the pegboard as specified size；
  
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==Result==
 
==Result==
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We can control the four wire two phase stepper motor successfully by Microduino A4982 module.
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We can control the four-wire two-phase stepping motor successfully by Microduino-Stepper module.
 
==Video==
 
==Video==
 
http://v.youku.com/v_show/id_XNjg5MTcwOTA0.html
 
http://v.youku.com/v_show/id_XNjg5MTcwOTA0.html
 
|}
 
|}

Latest revision as of 01:31, 12 February 2016

Language: English  • 中文

Objective

This lesson will show you how to control the stepping motor by Microduino-Stepper module, and welding the step motor control board.

Equipment

Stepper motor

  • Connection method for the stepping motor：

Connect the stepper motor to Microduino-Stepper module:

    • Four wire two phase stepper motor has two sets of coil A and B, each group coil's resistance is very small, only a few ohm. A and B group is absolutely insulation and disconnected. Measured with a multimeter, connected is a set;
    • After measured group A and B, connect one group coil to OUT1A and OUT1B, the other group coil connects to OUT2A and OUT2B;
    • By changing the MS1 & MS2 to change the stepping mode (Microduino-Stepper uses 1/16 stepping mode by default).
  • Angle calculation：

Stepper motor parameters：1.8deg/step, that is stepper motor moves one step turned every 1.8°.

    • Step number=360/1.8*16=3200 step

Multiplied by 16 because Microduino A4982 default use 1/16 step mode.

Stepper motor deg.jpg

Schematic

Stepper motor.jpg

Debugging

  • Step 1：Crop the pegboard as specified size；
  • Step 2：Determine the Microduino's base position, then welding the circuit according to the schematics:
洞洞板焊法
正面
反面
  • Set up circuit
ok

Program

  • Used library：【AccelStepper librarygithub下载 】
  • Downlaod test program：File:Program Test A4982.zip
  • Compile it and select the correct board type to download.
  • Test
    • Connect power (6-25V), the motor won't move in initial state;
    • Press the button, the stepper motor will rotate as setted pace, and LED indicator lights, reverse rotation after a few laps, the cycle repeated;
    • Press the button again, close the drive, LED indicator turn off.

Result

We can control the four-wire two-phase stepping motor successfully by Microduino-Stepper module.

Video

http://v.youku.com/v_show/id_XNjg5MTcwOTA0.html

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