View source for Use Emonhub with RPICT



=Overview=
DO NOT USE THIS  GUIDE WITH EMONPI / EMONCMS IMAGE.
This is for use on a native Raspbian image. If using the emoncms image this is not necessary as emonhub is already installed.

This document will demonstrate how to prepare the rasberrypi to use Emonhub with the RPICT.

Emonhub will be used to forward the data from the RPICT series board and forward them to Emoncms.

We assume here a fresh install of raspbian has been installed and all steps to get the serial port operating have been carried out. See [[Howto_setup_Raspbian_for_serial_read]].

Also make sure the RPICT board supports Emonhub format as output.

=Install Emonhub=

This is not necessary if you are using the image from Emoncms as emonhub is already installed.

To install emonhub we would recommend following the steps indicated on the [https://github.com/openenergymonitor/emonhub emonhub github page].

We have summarized the commands to executre below:

 wget http://repo.mosquitto.org/debian/mosquitto-repo.gpg.key
 sudo apt-key add mosquitto-repo.gpg.key
 cd /etc/apt/sources.list.d/
 sudo wget http://repo.mosquitto.org/debian/mosquitto-jessie.list
 sudo apt-get update
 sudo apt-get install -y mosquitto python-serial python-configobj
 sudo easy_install -U pip
 sudo pip install paho-mqtt
 sudo pip install pydispatcher
Open and modify this file below:
 sudo nano /etc/mosquitto/mosquitto.conf
Set persistence parameter as false
 persistence false

 cd
 mkdir data
 git clone https://github.com/openenergymonitor/emonhub.git && emonhub/install
 sudo service emonhub start

=RPICT configuration=

The format parameter should be set to emonhub, code number 3.
 format = 3

=Emonhub configuration=

The configuration file for emonhub is located in /home/pi/data

Open this file. Delete all its content and replace with this one below:

 [hub]
 ### loglevel must be one of DEBUG, INFO, WARNING, ERROR, and CRITICAL
 ### see here : http://docs.python.org/2/library/logging.html
 loglevel = DEBUG #(default:WARNING)
 
 [interfacers]
 
 <nowiki>[[SerialDirect]]</nowiki> 
   Type = EmonHubSerialInterfacer
   [[[init_settings]]]
       com_port = /dev/ttyAMA0
       com_baud = 38400
     [[[runtimesettings]]]
      pubchannels = ToEmonCMS,
 
 <nowiki>[[emoncmsorg]]</nowiki>
    Type = EmonHubEmoncmsHTTPInterfacer
    [[[init_settings]]]
    [[[runtimesettings]]]
        subchannels = ToEmonCMS,
        #url = http://localhost/emoncms #uncomment to save on local pi
        [[apikey = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx]]
        senddata = 1                    # Enable sending data to Emoncms.org
        sendstatus = 1                  # Enable sending WAN IP to Emoncms.org MyIP > https://emoncms.org/myip/list
        sendinterval= 30                # Bulk send interval to Emoncms.org in seconds
         
 
 [nodes]
 
 <nowiki>[[11]]</nowiki>
   nodename = my_RPICT7V1
   [[[rx]]]
      names = RP1, RP2, RP3, RP4, RP5, RP6, RP7, Irms1, Irms2, Irms3, Irms4,Irms5,Irms6,Irms7,Vrms
      scales = 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
      units =W,W,W,W,W,W,W,mA,mA,mA,mA,mA,mA,mA,V


Change the node information as relevant. Also change the apikey to the one that emoncms gave you.