Yocto-record

Data recording for Yocto-Thermocouple and Yocto-Meteo (Weather) modules in Python

This small program allows to display and record temperature, humidity and pressure from Yocto-Meteo module or Yocto-Thermocouples module(s).

Data are displayed in a terminal (text mode) and updated every second (or any selected time interval).

Recordings are saved in a text file: Date-Time-Module1-Module2-xxx.csv. Separators are coma (can be changed), easily importable in Libreoffice Calc, Excel or any plotting software.

This version was tested with three modules (meteo & thermocouples), works in direct usb mode, or with VirtualHub running.

Updates

• 2014/08: Minor changes
• 2013/11: Thanks to Yoctopuce support team, added basic error [exceptions handling] (http://docs.python.org/3.3/tutorial/errors.html#handling-exceptions) with (try & except), project name changed to yocto-record.py
• 2013/09: Meteo+tc.py first version.

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Required components

• Yocto-Meteo and/or Yocto-Thermocouples modules from Yoctopuce (http://www.yoctopuce.com/)
• Yoctopuce Python libraries: http://www.yoctopuce.com/EN/libraries.php (YoctoLib.python.XXXX.zip)
• Python 3.x: http://www.python.org/download/
• yocto-record.py script (from https://github.com/SebastienCaillat/Yoctopuce-Meteo-Temperature)

Installation

• Install Python (with option to declare path for Windows users)
• Copy content of the directory \YoctoLib.python.XXXX\Source\ (yocto_api.py and others yocto_XXX.py files) to ~\Python3.3\Lib\ directory were Python is installed

Starting the program

• Put yocto-record.py on any directory, where the datafiles will be stored
• Open command prompt in this directory (Windows user: shift+right click in Explorer)
• Linux users, allow file to be executable, type: chmod +x yocto-record.py
• Type yocto-record.py (Win) or ./yocto-record.py (Linux)
  => Names of the recognized module(s) should appear
  => Date, time, temperatures, pressure & humidity should be displayed every second
• Data will be saved in text file in column
• Name of the text file will be Date-time-modules-types.csv => for example: 2013-08-18-08-12-21-Thermo-Meteo.csv

Warning: Starting for Python IDLE will make data file empty (I don't know why...)

Data file example

Day Time Temperature(°C) Pressure(mb) RH(%) Module: METEOMK1-0D163  
2013/08/19 14:18:41,24.0,1016,43  
2013/08/19 14:18:42,24.0,1016,43  
2013/08/19 14:18:43,24.0,1016,43  

Settings

Some settings are avalaible using arguments:

• yocto-record.py name => will append a name to the data file
  => for example: 2013-08-18-08-12-21-Thermo-Meteo-name.csv
• yocto-record.py nofile to avoid saving to datafile
• yocto-record.py help or ? for a very short help

Other settings are available in the program (see settings section):

• Sample time: default is 1 second (automaticaly adjusted by the program to include script run time)
• Separator: default is coma (,)
• File extension: .txt or .csv
• Time by default is in iso format i.e. 2013-09-16T08:52:35.589860, can be chaged to custom

Stoping the program

• Type [Ctrl+c] to stop the programm
• Import data file in any graphic software (delimiters are coma)
• Have fun!