~John
On 3/16/06, as <[EMAIL PROTECTED]> wrote:
i have never programmed a sound card- is it possible to set the voltage output. won't this be affected by volume control of the system?
aravind.On 3/15/06, John Demme <[EMAIL PROTECTED]> wrote:100 microamps? A typical op amp should be able to do it no problem, assuming you have a 12V power supply to drive it! By trigger, so you mean that it doesn't take an analog signal, and that it takes a digital signal at a specific frequency? If so, you're better off using the parallel port, although you'll still need the op amp (and that op amp circuit is even more trivial). (Actually, there are a few ways other than an op amp, but it's probably the best way to do it)
