New to WSL, seek help for S0 KWh monitoring

[Ronald Jochems]

Hi All,

I have set myself a new challenge, and i believe WSL can help me with that (hopefully) !

I purchased a Rpi B+, and installed Raspbian, and also the WSL software succesfully.

I am seeking for a replacement of my current devices : Solarlog200 (solarpanels), Xanura HCB (domotica) and S0 power consumption metering.

I want to start with the last one, getting my power consumption working, as i believe i do not need external interfaces/converters for this purpose.

As reference i have this URL : http://www.ramge.de/powermonitor/doku.php?id=pulse_meter

However, i wonder if nobody else wanted to integrate the S0 pulse meterings with WSL ? 

Looking at the code of the above URL, i believe the device/GPIO paths are not entirely correct ? 

It is mentioned : i=`cat /sys/class/gpio/gpio2/value`

But my path looks like : 

root@raspberrypi:/sys/class/gpio# ls -alR /sys/class/gpio/

/sys/class/gpio/:

total 0

drwxrwx---  2 root gpio    0 Jan  1  1970 .

drwxr-xr-x 39 root root    0 Dec 16 21:13 ..

-rwxrwx---  1 root gpio 4096 Jan  1  1970 export

lrwxrwxrwx  1 root gpio    0 Jan  1  1970 gpiochip0 -> ../../devices/virtual/gpio/gpiochip0

-rwxrwx---  1 root gpio 4096 Jan  1  1970 unexport

root@raspberrypi:/sys/class/gpio#

Any help would be greatly appreciated !

Ron

[Ronald Jochems]

I found a interesting article : http://gathering.tweakers.net/forum/list_messages/1607839

Could it be as simple ?

[Ronald Jochems]

All,

With the RPi.GPIO library, and the python script i can now read out the GPI port where my S0 Kwh meter is connected.

The result at this moment is a little file (on tmpfs filesystem) whereby each pulse is counted, and written in a temp file :

root@raspberrypi:/mnt/data_tmpfs# ps -ef|grep gpio

root      2277     1  0 18:15 ?        00:00:04 python /root/GPIO-counter/gpio-counter.py 23 /mnt/data_tmpfs/gpio23-counter.log

root@raspberrypi:/mnt/data_tmpfs# cat gpio23-counter.log

1980

2014-12-17 22:01:36.108448

Now my challenge is, how to convert this into a nice little graph, just like the other smart-meter functions ?

Many thanks in advance !

[George Drak]

Hello

I am interested in a similar solution..you have done something in it ??

Thank you
George