add ve direct as sensor

log_vedirect.py

@@ -0,0 +1,81 @@
+#!/usr/bin/env python
+
+import numpy as np
+import os, serial,time,socket,sys,json,logging,requests,getopt
+from meas_data import meas_data
+# import the server implementation
+# import ADC
+#import vedirect
+#import upload_osm
+
+configfile="config.json"
+cf=open(configfile,"r")
+log_conf=json.load(cf)
+cf.close()
+
+channel_names=[]
+channel_info={}
+
+parameter={"device":socket.gethostname(),"mean_count":5,"ring_length":10,"wait":0.5,"sigma":2}
+for n in parameter:
+  if n in log_conf:
+    parameter[n]=log_conf[n]
+
+if "sqlserver" in log_conf:
+  hostname="banana"
+  if "host" in log_conf['sqlserver']:
+    hostname=log_conf['sqlserver']['host']
+  port=24048
+  if "port" in log_conf['sqlserver']:
+    port=int(log_conf['sqlserver']['port'])
+
+# declare ve mppt
+bve=False
+if "vedirect" in log_conf:
+  from vedirect import vedirect
+  bve=True
+  if "enable" in log_conf['vedirect']:
+    if log_conf['vedirect']['enable'] == 0:
+      bve=False
+  if "port" in log_conf['vedirect']:
+    bve_port=log_conf['vedirect']['port']
+  else:
+    bve_port='/dev/serial/by-id/usb-VictronEnergy_BV_VE_Direct_cable_VE1SSBVT-if00-port0'
+  print(bve_port)
+  try:
+    ve=vedirect(bve_port,60)
+  except:
+    bve=False
+  else:
+    tsl_sigma=parameter['sigma']
+    if "sigma" in log_conf['vedirect']:
+      tsl_sigma=int(log_conf['vedirect']['sigma'])
+      if tsl_sigma < 1:
+        tsl_sigma=1
+    varnames={"volt_bat_ve":"V","volt_arr_ve":"VPV","amp_ve":"I","watt_ve":"PPV","days_ve":"HSDS"}
+    for i in varnames:
+      channel_info[i]={"meas_data": meas_data(var_name=i,ring_length=parameter['ring_length'],device=parameter['device'],sensor="VEdirect",i2c=0,store_file="/home/pi/log/data_ve",sigma=tsl_sigma)}
+      if "sqlserver" in log_conf:
+        channel_info[i]['meas_data'].set_sql(host=hostname,port=port)
+
+
+if badc:
+  while True:
+  
+    try:
+      vedata=ve.read_data_single()
+    except:
+      print("could not read VE")
+    else:
+      for i in varnames:
+        cn=varnames[i]
+        if cn in vedata:
+          channel_info[i]['meas_data'].append(int(vedata[cn]))
+
+    time.sleep(parameter['wait'])
+
+
+# close the client
+print("done")
+
+

vedirect.py

@@ -80,6 +80,7 @@ class vedirect:
                     callbackFunction(packet)
             else:
                 break
+
 def print_data_callback(data):
     print data
 # end import vedirect