My data persistent with chart (Generic Monitor)

[fra290]

For my fish tank I have develop one new module for data persistence with relative widget able to plot the data on a chart.
I’m not a coder and I'm newbie in HG, probably is possible optimize the code and add new error control.
I have used "rrdtools" (http://oss.oetiker.ch/rrdtool/ ) a little "vintage" library but very light and fast (run fine on my hold raspberry)

Features

• Make and manage rrd database for any sensor enabled with this data:
• Current day with 1 minute of data resolution
• Last week with 5 minutes of data resolution 
• last month, resolution 20 minutes
• last year, resolution 5 hours
• Makes available one virtual module for any sensor enabled with:
• Value
• Unit of measure
• Small chart
• Control buttons for data range visualization
• Popup menu with large data chart

Compatibility and limitations

• At the moment GenericMonitor is compatible with a sensor module, I test it with MCP3008 Analog Input Module but probably run fine also with My Sensor but I don’t test it:
• The name of Sensor can’t contain special character, the only character managed is " ", sorry but with python I was not able to encode/decode the name of module, at the moment I only substitute " " with "%20"
• Widget was designed to work with "C" theme (light grey)
• The database is updated every Heartbeat time for every sensor managed, system write some data whenever on flash memory, this is not very good for the flash memory life, I suggest to use one different location for system and database (i.e USB flash stick), is possible configure the path of database on ChartModule setup.

Install

• Install rrdbtool

Code: [Select]

sudo apt-get install rrdtool

• copy images

Code: [Select]

cp monitor.png /usr/local/bin/homegenie/html/pages/control/widgets/homegenie/generic/images
cp chart*.png /usr/local/bin/homegenie/html/images


• install program and widget on home genie
• Chart_Monitor.hgx
• homegenie_generic_monitor.zip
• Open the setup page for sensor module and check  “Enable Chart Module”, fill all other parameter:
• Unit of mesure
• Min Max: set the range of value, warning, if the data run out of this range will be void
• Heartbeat is very critical, I recommend set this value as a double or triple of the data sampling.
• Now restart the ChartMonitor for build the databases.

I'm waiting feeback, Thank You
  MArco
 

[HGexperimenter]

Hi,
Is there a link to the HG source code?
Thanks!

[raptorjr]

I think it is in the .rar file.