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August 28, 2024 08:56
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Code to read data from a CurrentCost EnviR electricity usage meter
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| import untangle | |
| import serial | |
| def get_data(port='/dev/ttyUSB1', verbose=False): | |
| """Gets temperature and power usage data from an attached CurrentCost meter. | |
| Parameters: | |
| - port: the port that the CurrentCost meter is attached to. Somthing like /dev/ttyUSB0 or COM1 | |
| Returns: | |
| (temperature, usage), with temperature in degrees C, and usage in Watts | |
| """ | |
| ser = serial.Serial(port, 57600) | |
| xmldata = ser.readline() | |
| if verbose: | |
| print(xmldata) | |
| ser.close() | |
| p = untangle.parse(xmldata) | |
| temperature = float(p.msg.tmpr.cdata) | |
| watts = int(p.msg.ch1.watts.cdata) | |
| return (watts, temperature) |
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HI ! Solved it ...
The problem is with the output ... If don't found value for the Watts or for the imp don't produce the output of return ... I add a dummy value and output the 3 values and all runs !