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datalogger.py
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Thu, Feb 20, 13:52

datalogger.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# add ../../Sources to the PYTHONPATH
import sys
import os
import time
sys.path.append(os.path.join("..", "..", "Sources"))
from yocto_api import *
def dumpSensor(sensor):
fmt = "%d %b %Y %H:%M:%S,%f"
print("Using DataLogger of " + sensor.get_friendlyName())
dataset = sensor.get_recordedData(0, 0)
print("loading summary... ")
dataset.loadMore()
summary = dataset.get_summary()
print("from %s to %s : min=%.3f%s avg=%.3f%s max=%.3f%s" % (
summary.get_startTimeUTC_asDatetime().strftime(fmt),
summary.get_endTimeUTC_asDatetime().strftime(fmt),
summary.get_minValue(), sensor.get_unit(),
summary.get_averageValue(), sensor.get_unit(),
summary.get_maxValue(), sensor.get_unit()))
print("loading details : 0%")
progress = 0
while progress < 100:
progress = dataset.loadMore()
# print("\b\b\b\b%3d%%" % progress)
details = dataset.get_measures()
for measure in details:
print("from %s to %s : min=%.3f%s avg=%.3f%s max=%.3f%s" % (
measure.get_startTimeUTC_asDatetime().strftime(fmt),
measure.get_endTimeUTC_asDatetime().strftime(fmt),
measure.get_minValue(), sensor.get_unit(),
measure.get_averageValue(), sensor.get_unit(),
measure.get_maxValue(), sensor.get_unit()))
def main():
errmsg = YRefParam()
# Setup the API to use local USB devices
if YAPI.RegisterHub("usb", errmsg) != YAPI.SUCCESS:
sys.exit("init error" + errmsg.value)
if len(sys.argv) == 1 or sys.argv[1] == 'any':
sensor = YSensor.FirstSensor()
if sensor is None:
sys.exit("No module connected (check USB cable)")
else:
sensor = YSensor.FindSensor(sys.argv[0])
if not sensor.isOnline():
sys.exit("Sensor " + sensor.get_hardwareId() + " is not connected (check USB cable)")
dumpSensor(sensor)
YAPI.FreeAPI()
if __name__ == '__main__':
main()

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