is there a way to make the Arduino act as a voltage source, by generating sinusoidal, triangular and other kinds of signals? If so, can it be done using LabVIEW? (I've already managed reading analog signals using VISA)
Thank you!
1 Answer
The Due (and similar SAM based boards) have a DAC built in which can be set to different voltages (I forget the range off hand, maybe 0-Vcc at 12-bit resolution). Change that voltage fast enough, and you have a waveform.
Other Arduinos have PWM outputs which, when filtered through a low-pass filter, give a voltage proportional to the duty cycle of the PWM. Again, change the duty cycle fast enough and you have a waveform (limited by the carrier frequency of the PWM).
Can you do it from LabVIEW? Who knows? I have never used it.
