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| # Version 2.0 | ||
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| The MachineMotion Python API V2.0 aims at simplifying the interfaces to the digital input / outputs and the encoder position. | ||
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| ## Compatibility | ||
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| The Python API V2 requires MachineMotion version V1.12 or newer. | ||
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| Please use [mm-python-api V1.6.7](https://github.com/VentionCo/mm-python-api/releases/tag/v1.6.7) for prior version of MachineMotion software. | ||
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| ## Interface changes | ||
| - **Obsoleted interfaces** | ||
| - attachControlDevice | ||
| - dettachControlDevice | ||
| - readControlDevice | ||
| - writecontrolDevice | ||
| - **New interfaces:** | ||
| - isIoExpanderAvailable(device) | ||
| - digitalRead(device, pin) | ||
| - digitalWrite(device, pin, value) | ||
| - readEncoderRealtimePosition(device) | ||
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| # Version 1.6.7 | ||
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| Date: July 16<sup>th</sup>, 2019 | ||
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| ## Improvements: | ||
| - Added support for Python3 and Python2. | ||
| - Updated the REAMDME to include the new MQTT library dependency. | ||
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| # Version: 1.6.6 | ||
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| Date: July 4<sup>th</sup> 2019 | ||
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| ## Bug Fixes: | ||
| - Fix distance of movement smaller then requested on linear axis. | ||
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| ## Improvements: | ||
| - All examples import statement are now version independant. | ||
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| <br><br> | ||
| # Version: 1.6.5 | ||
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| Date: June 4<sup>th</sup> 2019 | ||
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| ## Bug Fixes: | ||
| - Fix Line Number mismatch with the help of the 'resend' message | ||
| - Fix application hang on termination | ||
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| ## New Features: | ||
| - Support for the rotatory indexer with constants for mechanical gain. | ||
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| ## Improvements: | ||
| - Added more examples for each sensor port for the different control devices functions. | ||
| - Auto reconnect on connection loss | ||
| - Instead of starting a new thread each 0.1 seconds, we now start one thread at the beginning and keep it alive forever to receive messages from the server | ||
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| ## Python API Version 4.2 | ||
| Date: September 8<sup>th</sup> 2021 | ||
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| Python API supports Python 3.7.3 and older. Python-API v4.2 has been updated to support the following: | ||
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| - For Linux and Mac machines, it is now possible to install the Python api system-wide. To update or install a Python API version, navigate to the folder with the new Python API and run: | ||
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| `make install` | ||
| - Simplified declaration of a new MachineMotion object. Creation of a MachineMotionv2 can be done as follows: | ||
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| `mm = MachineMotionV2()` | ||
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| `mm = MachineMotionV2OneDrive()` | ||
| - Push Button and Power Switch modules are now supported. | ||
| - Axes containing multiple drives can be configured and controlled as one. | ||
| - Combined moves with the 4th drive are now allowed. | ||
| - Enclosed ball screw is now supported. | ||
| - Some function names have been changed to reflect MachineLogic naming. The old names are deprecated, but will still work. These functions are: | ||
| - emitSpeed -> setSpeed | ||
| - emitAcceleration -> setAcceleration | ||
| - emitRelativeMove -> moveRelative | ||
| - emitAbsoluteMove -> moveToPosition | ||
| - emitCombinedAxesRelativeMove -> moveRelativeCombined | ||
| - emitCombinedAxesAbsoluteMove -> moveToPositionCombined | ||
| - emitContinuousMove -> moveContinuous | ||
| - emitHome -> moveToHome | ||
| - emitHomeAll -> moveToHomeAll | ||
| - There is no directions field in moveRelative, moveRelativeCombined. Simply put a positive or negative distance to set the direction of movement. | ||
| - moveToHome is not a blocking function. To block a script while homing, simply add a waitForMotionCompletion when desired. | ||
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| ## Known Issues | ||
| - If using the python API to control motors, you must first configure your actuators with the python API. Failure to do so can result in unexpected behaviour. |