V1

readfreq_influxdb.py

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+from jds6600 import jds6600
+import warnings
+import serial
+import serial.tools.list_ports
+import time
+from influxdb import InfluxDBClient
+from datetime import datetime
+import influxdb_config
+
+print("-----------------JDS6600-Reader-----------------")
+print("Searching Device ...")
+
+found_ports = [
+    p.device
+    for p in serial.tools.list_ports.comports()
+    if 'CH340' in p.description or 'USB Serial' in p.description    #CH340 for Windows, USB Serial for Linux
+]
+if not found_ports:
+    raise IOError("No JDS6600-device found")
+if len(found_ports) > 1:
+    warnings.warn('Multiple JDS6600-devices found - using the first')
+
+portname = found_ports[0]
+print("JDS6600 device found!")
+print("Using Port ", portname)
+
+jds = jds6600(portname)
+#jds = jds6600("COM4")
+
+print("--------------------------")
+# API information calls
+print("Devicetype: ", jds.getinfo_devicetype())
+print("Serialnumber:", jds.getinfo_serialnumber())
+print("--------------------------")
+
+#Disable Both outputs
+#print(jds.getchannelenable())
+jds.setchannelenable(bool(0), bool(0))
+print("Disabeling Outputs ... \t\t OK")
+
+#print(jds.getmode())
+jds.setmode('MEASURE')
+print("Set Mode Measure ... \t\t OK")
+
+jds.measure_setcoupling('AC')
+jds.measure_setgate(1) #Gatetime 1s
+jds.measure_setmode("PERIOD")
+print("Configure Measurement ... OK")
+print("--------------------------")
+
+
+print("Connecting to Influx-DB ... OK")
+dbclient = InfluxDBClient(  influxdb_config.influxdb_host,
+                            influxdb_config.influxdb_port, 
+                            influxdb_config.influxdb_user, 
+                            influxdb_config.influxdb_password, 
+                            influxdb_config.influxdb_dbname)
+freq_value = 0.0
+dbclient_success = False
+dbclient_fail_counter = 0
+
+print("--------------------------")
+print("Starting to read data ...")
+print("--------------------------")
+
+log_count = 0
+
+while 1:
+    if jds.getmode()[0] != 4:   # 4 means mode 'MEASURE'
+        raise IOError("Measurement-mode is not enabled!")
+    freq_value = jds.measure_getfreq_p()
+
+    
+
+    json_body = [
+        {
+            "measurement": "freq_Hz",
+            "fields": {
+                "value": freq_value
+            }
+        }
+    ]
+
+    dbclient_success = dbclient.write_points(json_body, time_precision='ms')
+     
+    if dbclient_success == True:
+        log_count = log_count + 1
+        if log_count >= 10:
+            print("f = ", freq_value, " DB OK")
+            log_count = 0
+    else:
+        dbclient_fail_counter = dbclient_fail_counter + 1
+        print("f = ", freq_value, " DB ERROR ", dbclient_fail_counter)
+        if dbclient_fail_counter >= 5:
+            raise IOError("Writing DB entry failed 5 times ... exiting!")
+        else:
+            dbclient_fail_counter = 0
+    
+
+    time.sleep(1)
+