95 lines
2.5 KiB
Python
95 lines
2.5 KiB
Python
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#!/usr/bin/env python
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"""
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LUFA Library
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Copyright (C) Dean Camera, 2019.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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"""
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"""
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Front-end configuration app for the TempDataLogger project. This script
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configures the logger to the current system time and date, with a user
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defined logging interval.
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The logging interval should be specified in milliseconds and is rounded to
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a multiple of 500ms.
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Usage:
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python temp_log_config.py <Log_Interval>
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Example:
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python temp_log_config.py 500
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Requires the pywinusb library (https://pypi.python.org/pypi/pywinusb/).
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"""
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import sys
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from datetime import datetime
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import hid
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def get_hid_device_handle():
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all_hid_devices = hid.enumerate()
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lufa_hid_devices = [d for d in all_hid_devices if d['vendor_id'] == 0x03EB and d['product_id'] == 0x2063]
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if len(lufa_hid_devices) is 0:
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return None
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device_handle = hid.device()
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device_handle.open_path(lufa_hid_devices[0]['path'])
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return device_handle
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def configure_temp_log_device(device, time_date, log_interval_500ms):
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report_data = bytearray(8)
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# Report data for the demo is the report ID (always zero)
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report_data[0] = 0
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# Followed by the time/date data
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report_data[1] = time_date.hour
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report_data[2] = time_date.minute,
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report_data[3] = time_date.second
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report_data[4] = time_date.day,
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report_data[5] = time_date.month
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report_data[6] = time_date.year - 2000
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# Lastly the log interval in 500ms units of time
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report_data[7] = log_interval_500ms
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# Send the generated report to the device
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device.write(report_data)
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def main(time_date, log_interval_500ms):
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hid_device = get_hid_device_handle()
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if hid_device is None:
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print("No valid HID device found.")
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sys.exit(1)
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try:
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print("Connected to device.", flush=True)
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configure_temp_log_device(hid_device, time_date, log_interval_500ms)
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print("Time/Date is now set to %s" % time_date)
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print("Log interval is now set to every %0.1fs" % (log_interval_500ms * (500.0 / 1000.0)))
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finally:
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hid_device.close()
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if __name__ == '__main__':
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time_date = datetime.now()
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log_interval_500ms = (int(sys.argv[1]) / 500) if len(sys.argv) > 1 else 2
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# Clamp the log interval to the allowable range
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log_interval_500ms = max(log_interval_500ms, 0x01)
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log_interval_500ms = min(log_interval_500ms, 0xFF)
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main(time_date, log_interval_500ms)
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