AIR 020 Development

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Tools

Test Command

GPIO Expander

JP5.1.0
Test GPIO high/low
air020gpio.png

  • GPIO0 (228) : gpio-419 (PN.01)
  • GPIO1 (118) : gpio-440 (PQ.05)
  • GPIO2 (127) : gpio-318 (PCC.01)
  • GPIO3 (206) : gpio-443 (PR.00)
  • GPIO4 (208) : gpio-437 (PQ.02)
  • GPIO5 (211) : gpio-453 (PS.04)
  • GPIO6 (212) : gpio-436 (PQ.01)
  • GPIO7 (218) : gpio-321 (PCC.04)


1).Switch to root

ubuntu@localhost:~ sudo -s

2).Commnad : where <GPIO> : gpio number and <LEVEL> : high(1)/low(0)
For example, pull up GPIO0 to high.

root@localhost:/home/ubuntu# echo 419 > /sys/class/gpio/export
root@localhost:/home/ubuntu# echo out > /sys/class/gpio/PN.01/direction
root@localhost:/home/ubuntu# echo 1 > /sys/class/gpio/PN.01/value