Multiple servers?

[James101]

Hi,

I am using Fhem on a Pi to control 5 No. EQ-3 Max TRVs via a Busware COC. I would like to add 5 No. 1-wire temperature sensors to the system but I am unable to get it working.

I am using the 1-wire port on the COC. It works with 4 sensors but always fails when I add number 5. Either the 1-wire interface will fail or the communication with the TRVs will fail.

I have read that the COC is not the best with 1-wire and have seen mention of max 4 sensors.

I can read the 5 sensors fine via gpio on another Pi running Fhem so I am wondering if there is anyway to link two fhem servers?

Thanks

James

[rudolfkoenig]

FHEM2FHEM is one of the alternetives.
Take care, that the RAW Method depends on the modules in question only using Dispatch and IOWrite. I am not sure if this is the case with the 1wire modules you use. The LOG mode will work in any case.

[James101]

Thanks for the reply. FHEM2FHEM is just what I needed.  I have used the LOG method successfully, I haven't tried the RAW method yet.

In case it helps others I did the following to share temperature data (1 wire using GPIO4) from one Pi to another Pi.

On the Pi without the sensors I entered the following

define RemotePI FHEM2FHEM 192.168.0.236:7072 LOG:.*
(where the IP address is that of the Pi with the sensors)

define GPIO4_DS1820_000802a05ca7 dummy
(where GPIO.... is the name of a sensor defined on the other Pi)

define GPIO4_DS1820_000802a05ca7_notify notify GPIO4_DS1820_000802a05ca7 { $EVENT=~s/://;;;; fhem("setreading GPIO4_DS1820_000802a05ca7 $EVENT") ;;;; my $ GPIO4_DS1820_000802a05ca7_T= ReadingsVal("GPIO4_DS1820_000802a05ca7","temperature",0) ;;;; fhem("setreading GPIO4_DS1820_000802a05ca7 state T: $ GPIO4_DS1820_000802a05ca7_T")}

Thanks to http://raffisworldboard.forumprofi.de/hardware-f6/fhem2fhem-2-fhem-server-verbinden-und-daten-austau-t1243.html for the details

[rudolfkoenig]

You do not need the notify if you have an up-to-date FHEM2FHEM.
- the readings are set automatically if there is a device with the same name.
- you can use the stateFormat attribute to update the state.