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my9221.py 2.0KB

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  1. #!/usr/bin/python
  2. # Author: Zion Orent <zorent@ics.com>
  3. # Copyright (c) 2015 Intel Corporation.
  4. #
  5. # Permission is hereby granted, free of charge, to any person obtaining
  6. # a copy of this software and associated documentation files (the
  7. # "Software"), to deal in the Software without restriction, including
  8. # without limitation the rights to use, copy, modify, merge, publish,
  9. # distribute, sublicense, and/or sell copies of the Software, and to
  10. # permit persons to whom the Software is furnished to do so, subject to
  11. # the following conditions:
  12. #
  13. # The above copyright notice and this permission notice shall be
  14. # included in all copies or substantial portions of the Software.
  15. #
  16. # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17. # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18. # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19. # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20. # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21. # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22. # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23. import time, sys, signal, atexit
  24. import pyupm_my9221 as upmMy9221
  25. # Instantiate a MY9221, we use D2 for the data, and D3 for the
  26. # data clock. This was tested with a Grove LED bar.
  27. myLEDBar = upmMy9221.MY9221(2, 3)
  28. # Exit handlers
  29. def SIGINTHandler(signum, frame):
  30. raise SystemExit
  31. def exitHandler():
  32. myLEDBar.setBarLevel(0, True)
  33. print "Exiting"
  34. sys.exit(0)
  35. # This function lets you run code on exit
  36. atexit.register(exitHandler)
  37. # This function stops python from printing a stacktrace when you hit control-C
  38. signal.signal(signal.SIGINT, SIGINTHandler)
  39. directionBool = True
  40. level = 1
  41. x = 0
  42. while(1):
  43. # If it's less than 10
  44. # light up the LED now
  45. # call show_LED again in 50 ms
  46. if (level <= 10):
  47. myLEDBar.setBarLevel(level, directionBool)
  48. level += 1
  49. # Switch LED lighting directions between lighting cycles
  50. else:
  51. directionBool = not directionBool
  52. level = 1
  53. time.sleep(1)
  54. time.sleep(.05)
  55. x += 1