sendenergy.py

import serial, sys, time
import httplib

# Domain you want to post to: localhost would be an emoncms installation on your own laptop
# this could be changed to emoncms.org to post to emoncms.org
domain = "emoncms.org"

# Location of emoncms in your server, the standard setup is to place it in a folder called emoncms
# To post to emoncms.org change this to blank: ""
emoncmspath = ""

# Write apikey of emoncms account
apikey = "b742b99d9880b27ff50ce73b17c2e224"

# Node id youd like the emontx to appear as
nodeid = 1

# Connection to web
conn = httplib.HTTPConnection(domain)

#Enable dac output 
out0en = open('/sys/class/hwmon/hwmon0/device/out0_enable', 'w')
out0en.write(str(1))
out0en.close

#Loop forever
while 1:
        
# Turn on led        
        out0 = open('/sys/class/hwmon/hwmon0/device/out0_output', 'w')
        out0.write(str(255))
        out0.close

# Read analog values and format into csv
        in0 = open('/sys/class/hwmon/hwmon0/device/in0_input', 'r')
        in0val = in0.read()
        in0.close()
        in1 = open('/sys/class/hwmon/hwmon0/device/in1_input', 'r')
        in1val = in1.read()
        in1.close()
        in2 = open('/sys/class/hwmon/hwmon0/device/in2_input', 'r')
        in2val = in2.read()
        in2.close()
        in3 = open('/sys/class/hwmon/hwmon0/device/in3_input', 'r')
        in3val = in3.read()
        in3.close()
        csv = in0val.rstrip() + "," + in1val.rstrip() + "," + in2val.rstrip() + "," + in3val.rstrip()
        print csv

# Send to emoncms
        conn.request("GET", "/"+emoncmspath+"/input/post.json?apikey="+apikey+"&node="+str(nodeid)+"&csv="+csv)
        response = conn.getresponse()
        print response.read()
        conn.close()
        
# Turn off led and wait for next reading
        out0 = open('/sys/class/hwmon/hwmon0/device/out0_output', 'w')
        out0.write(str(0))
        out0.close
        time.sleep(5)