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Merged
merged 3 commits into from
Dec 14, 2020
Merged

Improve example outputs #26

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7a19aaf
Add power figures, cleanup output format
WizardTim Dec 3, 2020
791d076
Use overflow flag in example
WizardTim Dec 4, 2020
8052acb
Formatting
WizardTim Dec 4, 2020
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16 changes: 12 additions & 4 deletions examples/ina219_simpletest.py
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Original file line number Diff line number Diff line change
Expand Up @@ -31,12 +31,20 @@
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
power = ina219.power # power in watts

# INA219 measure bus voltage on the load side. So PSU voltage = bus_voltage + shunt_voltage
print("PSU Voltage: {:6.3f} V".format(bus_voltage + shunt_voltage))
print("Shunt Voltage: {:9.6f} V".format(shunt_voltage))
print("Load Voltage: {:6.3f} V".format(bus_voltage))
print("Current: {:9.6f} A".format(current / 1000))
print("Voltage (VIN+) : {:6.3f} V".format(bus_voltage + shunt_voltage))
print("Voltage (VIN-) : {:6.3f} V".format(bus_voltage))
print("Shunt Voltage : {:8.5f} V".format(shunt_voltage))
print("Shunt Current : {:7.4f} A".format(current / 1000))
print("Power Calc. : {:8.5f} W".format(bus_voltage * (current / 1000)))
print("Power Register : {:6.3f} W".format(power))
print("")

# Check internal calculations haven't overflowed (doesn't detect ADC overflows)
if ina219.overflow:
print("Internal Math Overflow Detected!")
print("")

time.sleep(2)