oscilloscope are expensive so I thought instead of buying one right now I would start getting familar with the different wave's in my circuits by using my audio port or parallel port. My problem is that I don't know what voltage range a computer sound card is using. I have googled and found some evidence that the line in or mic port is using 0 to 2 volts. But I am still unsure. And I think parallel port uses a standard 0 to 5 volts.
I would love to find a place that would tell me the standard voltage for different computer ports.
Like what is the range for serial, parallel, line in, line out , speaker ,...ect
And is a binary 1 in a computer represented as 5 volts and 0 represented as 0 volts. Their must be a standard to all this or then all computers would
be not compatible with each other or any add on devices.
I would love to find a place that would tell me the standard voltage for different computer ports.
Like what is the range for serial, parallel, line in, line out , speaker ,...ect
And is a binary 1 in a computer represented as 5 volts and 0 represented as 0 volts. Their must be a standard to all this or then all computers would
be not compatible with each other or any add on devices.
