blink.sh 1.2 KB

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  1. #!/bin/sh -e
  2. #
  3. # blink.sh:
  4. # Standard "blink" program in wiringPi. Blinks an LED connected
  5. # to the first GPIO pin.
  6. #
  7. # Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
  8. #######################################################################
  9. # This file is part of wiringPi:
  10. # https://projects.drogon.net/raspberry-pi/wiringpi/
  11. #
  12. # wiringPi is free software: you can redistribute it and/or modify
  13. # it under the terms of the GNU Lesser General Public License as published by
  14. # the Free Software Foundation, either version 3 of the License, or
  15. # (at your option) any later version.
  16. #
  17. # wiringPi is distributed in the hope that it will be useful,
  18. # but WITHOUT ANY WARRANTY; without even the implied warranty of
  19. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  20. # GNU Lesser General Public License for more details.
  21. #
  22. # You should have received a copy of the GNU Lesser General Public License
  23. # along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
  24. #######################################################################
  25. # LED Pin - wiringPi pin 0 is BCM_GPIO 17.
  26. PIN=0
  27. gpio mode $PIN out
  28. while true; do
  29. gpio write $PIN 1
  30. sleep 0.5
  31. gpio write $PIN 0
  32. sleep 0.5
  33. done