树莓派/Raspberry Pi控制步进电机（附代码）！！！！

ukonline2000

本来打算写arduino的代码，后来发现网上有个步进电机的代码，于是用这个代码试了试驱动步进电机，效果不错！






材料：
1.树莓派
2.全功能扩展版http://www.shumeipai.net/thread-455-1-1.html
3.步进电机28BYJ-48-5V或者28BYJ-48-12V

使用GPIO0-GPIO3口

附python代码（这里要感谢matt.hawkins提供的源代码）：
Stepper Motor.zip (1 KB, 下载次数: 165)

2012-7-22 15:48 上传

点击文件名下载附件
###########################################################

1. #-----------------------------------
   
2. # Name: Stepper Motor
   
3. #
   
4. # Author: matt.hawkins
   
5. #
   
6. # Created: 11/07/2012
   
7. # Copyright: (c) matt.hawkins 2012
   
8. #-----------------------------------
   
9. #!/usr/bin/env python
   
10. 
    
11. # Import required libraries
    
12. import time
    
13. import RPi.GPIO as GPIO
    
14. 
    
15. # Use BCM GPIO references
    
16. # instead of physical pin numbers
    
17. GPIO.setmode(GPIO.BCM)
    
18. 
    
19. # Define GPIO signals to use
    
20. # GPIO24,GPIO25,GPIO8,GPIO7
    
21. StepPins = [17,18,21,22]
    
22. 
    
23. # Set all pins as output
    
24. for pin in StepPins:
    
25.   print  "Setup pins"
    
26.   GPIO.setup(pin,GPIO.OUT)
    
27.   GPIO.output(pin, False)
    
28. 
    
29. # Define some settings
    
30. StepCounter = 0
    
31. WaitTime = 0
    
32. 
    
33. # Define simple sequence
    
34. StepCount1 = 4
    
35. Seq1 = []
    
36. Seq1 = range(0, StepCount1)
    
37. Seq1[0] = [1,0,0,0]
    
38. Seq1[1] = [0,1,0,0]
    
39. Seq1[2] = [0,0,1,0]
    
40. Seq1[3] = [0,0,0,1]
    
41. 
    
42. # Define advanced sequence
    
43. # as shown in manufacturers datasheet
    
44. StepCount2 = 8
    
45. Seq2 = []
    
46. Seq2 = range(0, StepCount2)
    
47. Seq2[0] = [1,0,0,0]
    
48. Seq2[1] = [1,1,0,0]
    
49. Seq2[2] = [0,1,0,0]
    
50. Seq2[3] = [0,1,1,0]
    
51. Seq2[4] = [0,0,1,0]
    
52. Seq2[5] = [0,0,1,1]
    
53. Seq2[6] = [0,0,0,1]
    
54. Seq2[7] = [1,0,0,1]
    
55. 
    
56. # Choose a sequence to use
    
57. Seq = Seq1
    
58. StepCount = StepCount1
    
59. 
    
60. # Start main loop
    
61. while 1==1:
    
62. 
    
63.   for pin in range(0, 4):
    
64.     xpin = StepPins[pin]
    
65.     if Seq[StepCounter][pin]!=0:
    
66.       print  " Step %i Enable %i" %(StepCounter,xpin)
    
67.       GPIO.output(xpin, True)
    
68.     else:
    
69.       GPIO.output(xpin, False)
    
70. 
    
71.   StepCounter += 1
    
72. 
    
73.   # If we reach the end of the sequence
    
74.   # start again
    
75.   if (StepCounter==StepCount):
    
76.     StepCounter = 0
    
77.   if (StepCounter<0):
    
78.     StepCounter = StepCount
    
79. 
    
80.   # Wait before moving on
    
81.   time.sleep(WaitTime)

复制代码

ukonline2000

自己的沙发

树老大

技术贴，支持了。

bianbian

2.0板子进展怎样啊

topzdx

ukonline2000:自己的沙发  (2012-07-22 16:13) 

等待时间 为0?
每秒多少脉冲?

树老大

怎么觉得有点搞笑啊。

lb_8848

能链接驱动板，不用直接出脉冲么？

xietian

脉冲频率最大是多少？

linux0ne

ULN2803驱动板  可以被这个取代了。