gpio input not working

[bkiss]

I want to use the raspberry-s gpio port for reading inputs also, output its working great.

I want to see the state of the relays, even after system restart, and for this i wanted to use some of the gpio ports to see if it's on or off.

First of all I cannot set on the gpio settings page the direction to input, every tine when i hit save, it comes back to output.

I went to the database, and i changed there, from output to input, but alway i have the down state, even if i see with command line gpio readall the changing state.

Thank you.

[oefterdal]

I have the same issue

[ni-c]

Works for me.

Might be a problem with the PI-GPIO Module (https://github.com/rakeshpai/pi-gpio/) and newer Raspberry Models: https://github.com/rakeshpai/pi-gpio/pull/2

[oefterdal]

I have the first revision

On 2. sep. 2013, at 18:14, Willi Thiel notifications@github.com wrote:

Works for me.

Might be a problem with the PI-GPIO Module (https://github.com/rakeshpai/pi-gpio/) and newer Raspberry Models: rakeshpai/pi-gpio#2

— Reply to this email directly or view it on GitHub.

[bkiss]

Thank you for your feedback,

I will check the pi-gpio code maybe we will find a solution. I use Model B with 512MB RAM.

Off-topic: I modified the arduino code to read DHT22 sensors with success.

Thank you again.

[ni-c]

I have installed the newest Raspian on my Raspberry to identify the problem, there might be some changes in the GPIO device. heimcontrol.js is looking in /sys/devices/virtual/gpio/gpio17/, but this device does not exist in the new Raspian version.

{ [Error: ENOENT, open '/sys/devices/virtual/gpio/gpio17/value']
  errno: 34,
  code: 'ENOENT',
  path: '/sys/devices/virtual/gpio/gpio17/value' }

pi@heimcontrol:/sys/devices/virtual/gpio$ ls -l
total 0
drwxr-xr-x 3 root root 0 Sep  7 17:38 gpiochip0

[bkiss]

Look, what i find:

https://github.com/quick2wire/quick2wire-gpio-admin

we need to export the gpio pins...

I will try, and i will come back ...

Barni

[bkiss]

After export, it's possible to set the direction in the gpio settings page, but in the main window does not sensing the state of the pin, it's always down. :(

I hope to help you with tis information.

[bkiss]

Ok,

If i export with the following command:

gpio-admin export 22

and set in the settings panel in web interface PIN 15 -- INPUT

Everything is ok.

Ps. yesterday the export was with sudo gpio-admin export 22 ---> maybe this was the problem.

For mongopi stabilty improovement: turn on journalling for mongopi, because without jurnalling mongod deamon doas not start after power failure, or without proper shutdown.

I think the case is closed.

Thank you for your help.