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Part Number: HDC2010EVM
Other Parts Discussed in Thread: HDC2010, CC3220SF-LAUNCHXL, BOOSTXL-BASSENSORS, LAUNCHXL-CC3235SF


In regards to HDC2010EVM - HDC2010 Low Power Humidity and Temperature Sensor Evaluation Module and Sensing Solutions EVM GUI

When the GUI Tool is running and showing a live stream of the temperature and humidity sensor on the graph does it also write to the logfile in real time?

Can the GUI Tool be run in the background \ persistent?  If the user logs out (of Windows) and a new user logs in, will the GUI continue to log sensor data to a log file?

If not, do you have any suggestions on how this could be achieved?  I don't need a GUI, just a way to log sensor data to a log file running the background (regardless who is logged on).

Thank you for your help.


  • Hi Peter,

    The GUI and a connection to it is required to use our EVM to datalog, so if the PC locks that wouldn't cause an issue, as the GUI would continue to run in the background, but if your PC went into hibernate mode (EVM would no longer receive power via USB) or if the user logged out (GUI process is killed) the EVM would no longer log data. 

    The same would be true for other tools that logged directly to your PC. 

    You may consider buying or building a stand alone humidity/temperature logging tool that has integrated memory for logging (for example

    Please let me know if you have any additional questions. 

    Best Regards,
    Brandon Fisher

  • Hi

    Thank you for your reply.

    I can find a PC that would stay logged in and  never sleep (be better if there was a way around that but not the end of the world).

    The main goal is to parse the logfile in real-time and when temperature\humidity go over or below certain values send out an e-mail or (other type of message).  The unit would be offsite and I don't want to think about it unless there is a problem.

    I take it from your reply that the logfile is being continuously updated by the GUI,

    I took a look at the thermoworks unit.  It has alarms on the unit but I can't tell if it can autonomous and send an e-mail when those alarm levels are reached.



  • Peter - 

    Perhaps you could then consider using CC3220SF-LAUNCHXL or LAUNCHXL-CC3235SF Launchpad with the BOOSTXL-BASSENSORS BoosterPack and the SDK Plugin for HDC2010 and one of the cloud interfaces that may work for you  - you could post sensor data emails (like below for one example). You could do over AWS, Azure, Watson, too. just another suggestion if you are interested in that - this would also allow you to eliminate Windows from your equation

  • Hi Josh

    Thank you for your suggestions - it is definitely a great avenue to follow up on.  Even if it doesn't get used for this project ( work ) using those boards for myself would be exciting.  Being able to communicate with it through wi-fi is definitely where everything is headed (or is already there).

    Thank you again for everyone's helpful suggestions and input.  I have some options to propose to work and we'll see where it goes from there.  I'm definitely going to investigate the wi-fi launchpad in the near future.