Unit A. Communicating with the Circuit Board: LabVIEW Programming and Measurement Exercises
Communicating between the computer and a circuit board (sending and receiving voltages from the computer) is accomplished with the data acquisition card (DAQ). The DAQ is normally connected from the computer to the circuit board with a 68-pin cable. In general, all 68 pins are used for such things as analog inputs and outputs, triggering, digital inputs and outputs, a 5-V dc supply, and counters. In our projects, we use, for the most part, only analog inputs and outputs. A digital output could also be used if we required an additional output, which of course is limited to on or off.
Since the analog inputs and outputs involve digital-to-analog and analog-to-digital ...
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