Topic: Help create code control gpio via web interface.

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Post #1

hoatienii

13 Dec 2014, 04:40

I mod 64MB RAM, USB for my router Dlink DIR615 C2.
Dlink DIR615 C2 have 6 free GPIO, i use GPIO [0, 2, 7, 9] control relay module. It work fine, i can control relay module via ssh command.
My /etc/rc.local

# Put your custom commands here that should be executed once
# the system init finished. By default this file does nothing.
#gpio0
echo "0" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio0/direction
echo "1" > /sys/class/gpio/gpio0/value
#gpio2
echo "2" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio2/direction
echo "1" > /sys/class/gpio/gpio2/value
#gpio7
echo "7" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio7/direction
echo "1" > /sys/class/gpio/gpio7/value
#gpio9
echo "9" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio9/direction
echo "1" > /sys/class/gpio/gpio9/value
exit 0

I type echo "1" > /sys/class/gpio/gpio9/value to control GPIO, Could anyone share me code control GPIO [0, 2, 7, 9] via web interface!
Thank you very much!

(Last edited by hoatienii on 13 Dec 2014, 04:57)

Post #2

neryba

13 Dec 2014, 11:05

if you plan use only for output direction, you can simply add that gpios as LEDs. So you can configure via standard web interface LED tab.

{
                    .name           = "d-link:relay:relay0",
                    .gpio           = 0, /* GPIO of relay*/
                    .active_low     = 1, /*Default value put 0 or 1 to enable this by default*/
            }

Post #3

hoatienii

14 Dec 2014, 01:32

neryba wrote:

if you plan use only for output direction, you can simply add that gpios as LEDs. So you can configure via standard web interface LED tab.
{
                    .name           = "d-link:relay:relay0",
                    .gpio           = 0, /* GPIO of relay*/
                    .active_low     = 1, /*Default value put 0 or 1 to enable this by default*/
            }

Yes i only use for output direction. Thank you very much your guide.
Where i add this code?

Post #4

neryba

14 Dec 2014, 18:33

I don't know where is DIR615 C2 located, but C1 in https://dev.openwrt.org/browser/trunk/t … r-615-c1.c

You need create own image with relay adding.

Post #5

hoatienii

15 Dec 2014, 04:21

neryba wrote:

I don't know where is DIR615 C2 located, but C1 in https://dev.openwrt.org/browser/trunk/t … r-615-c1.c
You need create own image with relay adding.

I see, thanks!

Post #6

hoatienii

21 Dec 2014, 18:35

Success!!!!!!
https://www.youtube.com/watch?v=rDJVSIDhzLI

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