measurement_weight.py

#!/usr/bin/env python3

# This file is part of HoneyPi [honey-pi.de] which is released under Creative Commons License Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0).
# See file LICENSE or go to http://creativecommons.org/licenses/by-nc-sa/3.0/ for full license details.

from read_hx711 import measure_weight
from utilities import start_single, stop_single, blockPrinting
import sys
import logging

logger = logging.getLogger('HoneyPi.measurement_weight')

@blockPrinting
def get_weight(sensor):
    try:
        start_single()
        weight = measure_weight(sensor)
        stop_single()

        # return weight in gramms
        return weight
    except Exception as ex:
        logger.exception("Unhandled exception in get_weight")

if __name__ == '__main__':
    try:

        weight_sensor = {}
        weight_sensor["pin_dt"] = int(sys.argv[1])
        weight_sensor["pin_sck"] = int(sys.argv[2])
        weight_sensor["channel"] = sys.argv[3]
        weight_sensor["offset"] = 0
        weight_sensor["reference_unit"] = 1

        print(get_weight(weight_sensor))

    except (KeyboardInterrupt, SystemExit):
        pass

    except Exception as ex:
        logger.exception("Unhandled exception in measurement_weight main")