13 steps to mentalism. Data and Measurement Interfaces USB based GPIB Controller In contemporary research laboratories various measurement techniques are used comprising several high-end instruments. For global BEV production to reach 12.5 million cars in 2025, an average of the projections by Barclays, Bloomberg, and the IEA, we estimate lithium production will need to more than double in under 10 years, and it would need to almost triple by 2030. Goldman Sachs forecasts a six-fold increase in lithium demand by 2030.

USB based GPIB Controller In contemporary research laboratories various measurement techniques are used comprising several high-end instruments. These instruments are usually connected to a Personal Computer (PC) for measurement automation and data collection. Although different communication interfaces exist, a General Purpose Interface Bus (GPIB) is still the most widely used. For that a suitable GPIB controller has to be applied to a PC, which can be in a form of an internal PC card or an external device. Till now two versions of controller were developed. Both are designed as Universal Serial Bus (USB) 2.0 compliant external devices, which provides plug-and-play operation, high speed of data transfer and are powered fully from the USB.

With regard to conventional GPIB controllers in the form of PC cards, such a design extends its usage to notebooks or other computers with no available I/O slots. For simple controller usage we developed the appropriate driver in a graphical programming language, which we use for instrument control software development. First version of the controller is the one that is described in article in EDN. For that version all the source files are available, so you can build it yourself.

However, we do not provide programmed microcontroller or PCB. The second version has a newer version of microcontroller making it two times faster but protocol compatible with the old one. The controller is also smaller in size. This version is on sale as an assembled KIT. Source files for this version are not publicly available. Links • - Dec 16, 2005 - article in •. Software User Manual - Description of protocol between the controller and a PC and description of LabVIEW functions (212 KiB) PC driver The controller communicates with the PC through a logical serial interface implemented with D2XX driver for FTDI chip.

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The driver provides WinAPI (DLL) access to the controller. You can download the latest version of the driver from FTDI's homepage. As an alternative you can download it from this page.

- D2XX driver for FTDI (version 3.01.04) (90 KiB) - CDM driver for FTDI (version 2.06.00) (877 KiB) We designed a driver in LabVIEW environment as a collection of VIs, since LabVIEW is successfully implemented in our laboratory and at the same time it is one of the most popular programs for measurement control and automation. The driver is designed to be as compatible as possible to the built-in one.

To adapt existing LabVIEW program to our GPIB controller, one has to replace GPIB sub-VIs with ours. - D2XX library v3.3 for LabVIEW 6.0 (z VISA) and higher(971 KiB).