Read data from USB port and display in graph form and save data

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VB

I will need to receive data from the usb port and display in graph form and save data

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Posted 6-Jul-11 20:30pm

goldpower

Updated 6-Jul-11 20:55pm

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Solution 2

It sounds as though you're trying to treat the USB port like a serial or parallel port. You can't. It's not a port, it's a BUS.

You don't read from a USB port. You read from the device connected to it. How you do that depends on the device and what interface it exposes for applications to talk to it.

Posted 7-Jul-11 1:52am

Dave Kreskowiak

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Christian Graus · Accepted Answer · 2011-07-06T21:00:00

You can subscribe to an event that will tell you when a new drive is connected. And you can then work out that it is a USB. But, a USB is just a drive, and you can read the data from it. There's a number of charting libraries, free and paid, if you can't draw your own charts, but it's not hard, esp as this is not a web app.