Foobot

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Lazarus and the Foobot air quality monitor

  • Foobot(http://foobot.io/) is an InternetOfThings gadget that monitors indoor air quality
  • Unfortunately, the company currently only supplies mobile phone apps to access the Foobot
  • They do however publish an API which returns JSON data when queried, so I decided to port it to the PC using Lazarus and FPC
  • The API page is here: https://api.foobot.io/apidoc/index.html

Screenshots

  • Foobot Monitor

foobotmonitorscreenshot.jpg

  • Foobot monitor configuration window

foobotmonitorscreenshot1.jpg

  • Foobot Interrogator

foobotinterrogator1.jpg
foobotinterrogator2.jpg

What you will need

1. A Foobot
2. A Foobot account
3. A free API Key (get one from the API page: https://api.foobot.io/apidoc/index.html)

Binary Downloads: Foobot Monitor

Windows 32/64 binaries:
https://svn.code.sf.net/p/lazarus-ccr/svn/applications/foobot/monitor/innosetup/setup_foobotmonitor.exe
Linux 32/64 binaries:
https://svn.code.sf.net/p/lazarus-ccr/svn/applications/foobot/monitor/linuxbinaries/foobotmonitor.zip

Binary Downloads: Foobot Interrogator

Windows 32/64 binaries:
https://svn.code.sf.net/p/lazarus-ccr/svn/applications/foobot/innosetup/foobotinterrogator_setup.exe
Linux 32/64 binaries:
https://svn.code.sf.net/p/lazarus-ccr/svn/applications/foobot/compiled/linuxbinaries.zip)

Source

Source code is in Lazarus CCR here: https://svn.code.sf.net/p/lazarus-ccr/svn/applications/foobot/

Functions

There are two main functions in foobot_utility.pas for you to use. Both will populate TObjects in foobot_objects.pas which you can read.

// Populates FoobotIdentityObject.TFoobotIdentityList collection
function FetchFoobotIdentity(aUsername, aSecretKey: string): boolean;
 
// Populates FoobotDataObject
function FetchFoobotData(DataFetchType: TDataFetchType = dfLast;
  iCurrentFoobot: integer = 0; iLastIntervalSeconds: integer = 3600;
  iLastAverageBySeconds: integer = 0; iStartTimeSeconds: int64 = 0;
  iEndTimeSeconds: int64 = 0; aSecretKey: string = 'unknown'): boolean;
 
// Populates datapoint arrays from FoobotIdentityObject for easy access
// - also populates HighLow arrays
function FoobotDataObjectToArrays: boolean;

Security

  • When first run Foobot Monitor will prompt you to enter your Foobot Username and an API Key.
  • These values are then stored in an encrypted configuration file so that they will load automatically in future
  • The configurarion file is located:
    • Windows: %APPDATA%\username\Local\foobotmonitor\
    • Linux /home/.config
  • You can alter/update the stored login data in the following way:

1. Open the foobotmonitor.cfg file
2. Make a new entry thus, then save the file. (using your values instead of the example <..> ones)

[Config]
Foobot User=<username>
Secret Key=<Secret API Key>
  • Next time Foobot Monitor is run, these values are read, then encrypted and the plaintext is deleted
    • You can do this as many times as you like

Licence

License is GPLV2 (https://en.wikipedia.org/wiki/GNU_General_Public_License)

Updates

  • From V0.1.1.0 you can configure the colours, Max and Min values for all the sensor displays.
  • The configurarion file is located:
    • Windows: %APPDATA%\username\Local\foobotmonitor\
    • Linux /home/.config
  • You can alter/update the colors and Max/Min values in the following way:

1. Open the foobotmonitor.cfg file
2. Edit the [Config] section

[Config]
pmColour=clGreen
tmpColour=clRed
humColour=clMaroon
co2Colour=clLime
vocColour=clBlue
allpolluColour=clFuchsia
pmMinValue=0
pmMaxValue=1000
tmpMinValue=0
tmpMaxValue=40
humMinValue=10
humMaxValue=100
co2MinValue=450
co2MaxValue=3000
vocMinValue=125
vocMaxValue=1000
allpolluMinValue=0
allpolluMaxValue=700
DisplayYellowLines=0
DisplayRedLines=1

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