Stepper Motor and ULN2003: Difference between revisions
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= How to connect it electrically = | = How to connect it electrically = | ||
[[File:Stepper-cables01.JPG|x200px]] | [[File:Stepper-cables01.JPG|x200px]] | ||
[[File:Stepper-cable02.JPG|x200px]] | [[File:Stepper-cable02.JPG|x200px]] | ||
= Required Module and Files = | |||
* We use '''[https://www.sketching-with-hardware.org/files/Stepper.py Stepper.py]''' | * We use '''[https://www.sketching-with-hardware.org/files/Stepper.py Stepper.py]''' | ||
* this is downloaded from https://github.com/zhcong/ULN2003-for-ESP32 | * this is downloaded from https://github.com/zhcong/ULN2003-for-ESP32 | ||
* the original file is at https://github.com/zhcong/ULN2003-for-ESP32/blob/master/Stepper.py | * the original file is at https://github.com/zhcong/ULN2003-for-ESP32/blob/master/Stepper.py | ||
* this is based on: https://github.com/IDWizard/uln2003 by (c) IDWizard 2017,MIT License. | * this is based on: https://github.com/IDWizard/uln2003 by (c) IDWizard 2017,MIT License. | ||
= How to control it in MicroPython = | = How to control it in MicroPython = | ||
Revision as of 17:01, 30 August 2020
see https://github.com/zhcong/ULN2003-for-ESP32
Description
A stepper motor is a motor where the turning can be controlled in steps.
Our motor has about 508 steps for 360° (the motor itself has 64 steps but there is a gear train on top)
more details:
ULN2003 driver module.
How to connect it electrically
Required Module and Files
- We use Stepper.py
- this is downloaded from https://github.com/zhcong/ULN2003-for-ESP32
- the original file is at https://github.com/zhcong/ULN2003-for-ESP32/blob/master/Stepper.py
- this is based on: https://github.com/IDWizard/uln2003 by (c) IDWizard 2017,MIT License.
How to control it in MicroPython
import Stepper
from machine import Pin
In1 = Pin(32,Pin.OUT)
In2 = Pin(33,Pin.OUT)
In3 = Pin(25,Pin.OUT)
In4 = Pin(26,Pin.OUT)
s1 = Stepper.create(In1,In2,In3,In4, delay=10)
s1.step(509,-1)
s1 = Stepper.create(In1,In2,In3,In4, delay=1)
s1.step(509)
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