Version 2.2.0

• Change auto connect behavior when multiple PSLab devices are connected. Previously, the device which appeared first in port enumeration was connected to. Now, the user must specify the port they which to connect on or an exception is raised.
• New function for device detection: pslab.serial_handler.detect.
• Fix broken import in pslab.external.HCSR04.

Version 2.1.0

• Fix CLI tools (entry point was incorrent)
• Add support for MQ135 gas sensor

Version 2.0.1

This release fixes a bug (#167) in PowerSupply where the current was incorrectly reported as 3.3 mA after setting it to zero.

Version 2.0.0

pslab-python 2.0.0 Release Notes

pslab-python 2.0 is now available!

Large parts of pslab-python have been rewritten to improve user friendliness. pslab-python version 1.0 was written primarily as a back end for pslab-desktop. While it could be used as a standalone library, it was not designed with that use case foremost in mind.

pslab-python 2.0 still serves as the back end for pslab-desktop, but it has been rewritten to be more user-friendly when being used as a standalone library.

Also worth mentioning is pslab-python's new test suite. Although tests are not immediately useful for users, they help developers avoid accidentally introducing regressions, which in turn makes pslab-python more pleasant to use.

The rewrite touches almost every part of pslab-python and is too extensive to go into detail, so here are the most important user-facing improvements:

Highlights

General

• Package renamed from PSL to pslab.
• Simplified API.
• Improved documentation now available on readthedocs.
• pslab-python now has a command line interface. Type pslab --help in a terminal for more information.
• pslab-python can now be installed from PyPI: pip install pslab
• Reworked exception handling. Exceptions are now raised as soon as possible instead of being suppressed and allowed to propagate.
• Many, many bug fixes.

Oscilloscope

• Oscilloscope-related functionality can now be found in the Oscilloscope class.
• The many different capture methods (capture1, capture2, capture4, capture_multiple, capture_fullspeed, capture_fullspeed_hr, capture_traces, capture_highres_traces) have been combined into a single capture method.
• Trigger settings can optionally be configured directly in the capture call, without the need to call configure_trigger separately.

Logic Analyzer

• Logic analyzer-related functionality can now be found in the LogicAnalyzer class.
• The many different capture methods (capture_edges1, start_one_channel_LA, start_two_channel_LA, start_three_channel_LA, start_four_channel_LA, start_one_channel_LA_backup__) have been combined into a single capture method.
• The type of logic event to capture is now given as a string instead of a number (e.g. "falling" instead of 2 to capture only falling edges).

Multimeter

• Multimeter-related functionality can now be found in the Multimeter class.
• Several different methods for measuring capacitance (capacitance_via_RC_dischan rge, get_capacitor_range, get_capacitance) have been combined into measure_capacitance.
• calibrate_capacitance method added, which allows for measurement of very small (single picofarad) capacitors.

Waveform Generator

• Analog waveform-related functionality can now be found in the WaveformGenerator class.
• The many different methods for generating waveforms (set_wave, set_sine1, set_sine2, set_w1, set_w2, set_waves) have been combined into a single generate method.
• Waveform amplitude is now set directly as part of a loaded function. For example load_function("SI1", lambda x: np.sin(x), [0, 2*np.pi]) will have an amplitide of 1 V, while load_function("SI1", lambda x: 2*np.sin(x), [0, 2*np.pi]) will have an amplitude of 2 V.

PWM Generator

• PWM-related functionality can now be found in the PWMGenerator class.
• Several different methods for generator PWM signals (sqr1, sqr1_pattern, sqr2, set_sqrs, sqrPWM) have been combined into a single generate method.

Power Supply

• Power supply-related functionality can now be found in the PowerSupply class.
• Voltage and current are now set via properties, e.g. to set the voltage on pin PV1 to 3 V, write power_supply.pv1 = 3.
• The load resistance limitation on PCS is now clearly documented.

I2C

• The I2C class has been split into the I2CMaster and I2CSlave classes.
• Primitive I2C calls (start, stop, wait, restart, etc.) are no longer available. Instead, use read and write which take care of I2C session handling under the hood.

Known issues

• Not every part of pslab-python has been rewritten. Specifically, the external subpackage (previously known as SENSORS) contains many sensor classes which remain untested.

Version 1.0.2

Merge pull request #118 from fossasia/development

chore: merge development branch with master branch

Version 1.0.1

PSLab Python library support for Windows Operating System. [Command Line]

Version 1.0.0

This version supports Python 2.7 with PyQt4 libraries