Create voltcurrent.py

python/voltcurrent.py

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+"""Sample code and test for adafruit_in219"""
+# Reads all voltage and current sensors for two I2C buses
+
+import sys
+#import board
+import busio
+from adafruit_extended_bus import ExtendedI2C as I2C
+from adafruit_ina219 import INA219
+
+if __name__ == "__main__":
+#	    print 'Length: ', len(sys.argv)
+  
+  buses = [1, 3] # default I2C buses
+  
+  if (len(sys.argv)) > 1:
+#   print("There are arguments!")
+#   if (('a' == sys.argv[1]) or ('afsk' in sys.argv[1])):
+    buses[1] = int(sys.argv[1], base=10)
+    if (len(sys.argv)) > 2:
+      buses[2] = int(sys.argv[2], base=10)
+      if (len(sys.argv)) > 3:
+        if sys.argv[3] == 'c'
+          config = True
+          from adafruit_ina219 import ADCResolution, BusVoltageRange
+
+  addresses = [0x40, 0x41, 0x44, 0x45] #INA219 addresses on the bus
+
+  for x in buses:
+    for y in addresses:
+      try:  
+  # Create library object using  Extended Bus I2C port
+        i2c_bus = I2C(buses[x]) # 1 Device is /dev/i2c-1
+        ina219 = INA219(i2c_bus, addresses[y])
+   
+#   print("ina219 test")
+        if config:
+# optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage
+          ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_1S   # 32S
+          ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_1S     # 32S
+# optional : change voltage range to 16V
+          ina219.bus_voltage_range = BusVoltageRange.RANGE_16V
+
+        bus_voltage = ina219.bus_voltage  # voltage on V- (load side)
+#       shunt_voltage = ina219.shunt_voltage  # voltage between V+ and V- across the shunt
+        current = ina219.current  # current in mA
+# INA219 measure bus voltage on the load side. So PSU voltage = bus_voltage + shunt_voltage
+#       print("{:6.3f}".format(bus_voltage + shunt_voltage))
+        print(bus_voltage, " ", current, " ")
+      except:
+    print("0.0 Error")
+