There will be a signal of around 0.5 volt DC and I need to read it from USB port, can I do that and how.
Thanks for any help.
Thanks for any help.
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for applications such as this I would use a microcontroller with ADC and onboard USB interface, e.g.
http://www.microchip.com/stellent/id...GE&nodeId=1486
you can buy low cost (about $40) PIC18 based prototyping boards such as
or PIC24 based (about $60)
http://www.microchip.com/stellent/id...cName=en535092
the microcontroller would be programmed in C but such boards come with plenty of example programs. You can then program a host PC in VB to receive data from it.
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