bkp879b

bkp879b is a self-contained SCPI "driver" library for the BK Precision 879B and 878B LCR Meters. It provides a pythonic interface to all of the documented SCPI commands in the manual. Query results are returned as native python datatypes for easy integration into the rest of your project.

Serial communication is handled by the pyserial library (http://pyserial.sourceforge.net/)

• Comma-separated results are contained inside a tuple
• All scientific notation values are returned as floats
• 'ON' 'OFF' values are returned as a boolean
• Integer values are returned as integers
• N or '----' values are returned as a None type
• Everything else is returned as a utf-8 string

For a detailed list of functionality see the bkp879b/scpi.py file

Installation:

pip install bkp879b

Usage:

import bkp879b

instrument = bkp879b.connect("/dev/yourdevice") # Windows users can just pass in 'COMx'

instrument.set_primary("C") # Sets primary measurement to Capacitence
instrument.set_secondary("ESR") # Sets secondary measurement to equivalent series resistance

# Activate auto-fetching mode on the meter by pressing "USB" Key
for reading in instrument.auto_fetch():
	print(reading)

Dependencies

pyserial >= 2.6

Contributing

Fork and submit a pull request.

MIT License

Copyright (c) 2016 Jim Battin

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.