UltimaSerial UltimaSerial Update Logs
 
Data logger

 

We highly suggest DataqSDK.NET Class if you are starting a new project on products supported by the class. 

Since the new DATAQSDK.NET is providing an advanced .NET programming interface, UltimaSerial ActiveX project is now in frozen state, meaning no more development to support newer Dataq USB device nor to improve its functionality for existing products. We are focusing our effort on WinDaq addons

 
Oct 31, 2011 Begins to log the ActiveX changes
Nov 21, 2011 DI-145 and DI-149 support are added
Feb 2, 2012  Fix a bug that prevents certain cases of co-existence of DI-145 and DI-149
June 29, 2012 Supports DI-155

Bug fixed:

  • DI-145's sample rate was half of what it was specified. The problem was introduced when the latest 145 firmware no longer support the undocumented max sample rate of 480.

Workaround:

  • DI-155/149 will stop scanning and flag an error when sample rate is below 11.44Hz, which is the minimum sample of the device. Now UltimaSerial will force all sample rates below the minimum sample to 11.44 and continue
April 12, 2013 Fixed the following problem in DI-148/158:

At certain low sample rate (for example, 62.5s/s) the device will stop working. The reason is because we tried too hard to get the perfect sample rate and had to pick a super high sample rate with software counter, and at high sample rate, the data rate exceeds the one supported by the default baud rate.

April 23, 2013 Support higher sample rate for DI-145

One can acquire data at sample rate higher than 240 s/s on DI-145 shipped after mid 2012 (the exact date can't be determined due to overlaps of new and old models) 

Please note the front-end circuit of DI-145 has a low-pass filter and it may not respond ideally at higher sample rate

Development Frozen 

We highly suggest DataqSDK.NET Class if you are starting a new project on products supported by the class. 

Since the new DATAQSDK.NET is providing an advanced .NET programming interface, UltimaSerial ActiveX project is now in frozen state, meaning no more development to support newer Dataq USB device nor to improve its functionality for existing products. We are focusing our effort on WinDaq addons

 

 

Last update: 04/08/15

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