Skip to main content

A package to interface a UCASS with a linux computer via USB-ISS

Project description

# OPCunix #
This software is designed to comminicate with the universal cloud and aerosol sounding system (UCASS) optical particle counter (OPC) designed at the University of Hertfordshire.
## Hardware ##
This software has the ability to handle multiple UCASS units simultaneously, all units must be connected before the software is started. Use a USB-ISS interface to connect a unit to the computer, the interface must be connected to the SPI pins of the UCASS (this usually has a breakout connector attached for this purpose).
## Installation ##
Install this software using pip:

`pip install UH-OPCunix-JGirdwood`

Use your prefered downloader (wget used here) to download the file from github into a directory of your choice:


Then run the main file directly, create a shortcut to where the '' file is located, or create a shell script with the following:

`python ${PATH_TO_MODULE}/`

### Dependancies ###
This module requires the following modules to be installed with pip, in addition to the default python modules:

`pip install pyserial pyusbiss`

## Commands ##
The parent process in this software is a terminal program from which several different commands can be launched. Options can be specified with the commands using '-' e.g. '-n', '-p', etc. A full list of commands is displayed here:

* `[OPC-unix] >> list ports` - Lists all the serial ports available
* `[OPC-unix] >> list ucass` - Lists all the initialised UCASS units
* `[OPC-unix] >> clear` - Clears the screen
* `[OPC-unix] >> exit` - Exits the program
* `[OPC-unix] >> ucass` - The master for the commands associated with UCASS interfacing:
1. init - Initialises a UCASS unit and starts recording histogram data in a subprocess (new window)
* Options:
1. '-n' - User specified name for the unit, used to keep track
2. '-p' - Port to start the comminications on (i.e. /dev/tty*)
3. '-r' - Record to file or not (boolean 1 or 0), this will also print config vars to log
2. del - Deletes a UCASS unit and shuts down the subprocess
* Options:
1. '-n' - Specify the name of the unit (set during init) you want to delete
3. conf - Read config vars and print in parent process
* Options:
1. '-p' - Specify the port of the unit you want to read (note this cannot be in use with init)

### Examples ###
*Example given, to initialise a UCASS unit to print histogram data to a screen:*

`[OPC-unix] >> list ports`

This will return a list of ports e.g.:


Next, list the config vars so the bin bounderies are known or checked:

`[OPC-unix] >> ucass config -p /dev/ttyACM0`

This will return the tab delimited configuration variables (and headers) printed to the terminal window. Next, start recording histogram data:

`[OPC-unix] >> ucass init -n unit-E -p /dev/ttyACM0 -r 1`

This will initialise a UCASS with name 'unit-E' on port '/dev/ttyACM0' and start recording to a file in a directory specified by the 'default_path.txt' file in the module. By default this is ${HOME}/UCASS_LOG/ (the directory will be created automatically if it does not exist). This command will also start a new terminal window, which will be printing out data.

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for UH-OPCunix-JGirdwood, version 0.1.2
Filename, size File type Python version Upload date Hashes
Filename, size UH_OPCunix_JGirdwood-0.1.2-py2-none-any.whl (11.8 kB) File type Wheel Python version py2 Upload date Hashes View

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page