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Windows Forum / Windows Vista / Hardware / February 2008Passing analog signals through usb
I dont have a serial port in my laptop. So i have to use the usb for recieving the analog outputs from the sensors for simulation. Help me in interfacing them. There are three different analog inputs all in mVolt range. Hi harsha, Try Googling for serial to usb adapters. There are plenty on the market and, as I don't know what exactly you need it for, you will have to check the results that Google gives you for yourself. Dwarf > I dont have a serial port in my laptop. So i have to use the usb for > recieving the analog outputs from the sensors for simulation. Help me in > interfacing them. There are three different analog inputs all in mVolt range. I m doing a project in which i have to display 3 sensor outpus in a graphical form or even a digital readout.. so i have to take these signals to my computer. I'll get the serial to usb adapters from the market. but how to pass the signals through it thankyou. > Hi harsha, > [quoted text clipped - 6 lines] > > recieving the analog outputs from the sensors for simulation. Help me in > > interfacing them. There are three different analog inputs all in mVolt range. >I m doing a project in which i have to display 3 sensor outpus in a >graphical [quoted text clipped - 17 lines] >> > interfacing them. There are three different analog inputs all in mVolt >> > range. It sounds like more then serial to USB conversion. First a conversion is needed from low level millivolt analog to a digital representation, then convert this digital.  SignatureBobF. Lincoln actually got it right but was way ahead of his time when he said, "You can have some of you computer working all of the time and all of your computer working some of the time but..." It was he that said that, wasn't it? >>I m doing a project in which i have to display 3 sensor outpus in a >>graphical [quoted text clipped - 21 lines] > needed from low level millivolt analog to a digital representation, then > convert this digital. Just a thought, you need to look at some instrumentation companies such as NLS for some meters that can read mV levels and have an output that can be read by computer. HPIB, HPIL, parallel, USB, etc. What kind of budget do you have? SignatureBobF. Lincoln actually got it right but was way ahead of his time when he said, "You can have some of you computer working all of the time and all of your computer working some of the time but..." It was he that said that, wasn't it? a max of $70-100 > >>I m doing a project in which i have to display 3 sensor outpus in a > >>graphical [quoted text clipped - 26 lines] > read by computer. HPIB, HPIL, parallel, USB, etc. What kind of budget do > you have? > >>I m doing a project in which i have to display 3 sensor outpus in a > >>graphical [quoted text clipped - 26 lines] > read by computer. HPIB, HPIL, parallel, USB, etc. What kind of budget do > you have? Nahhh, he doesn't need overpriced lab stuff. He needs this: http://www.trossenrobotics.com/phidgets.aspx?a=pg >> >>I m doing a project in which i have to display 3 sensor outpus in a >> >>graphical [quoted text clipped - 43 lines] > > http://www.trossenrobotics.com/phidgets.aspx?a=pg I agree. Looks like he should be able to build something out of these. SignatureBobF. Lincoln actually got it right but was way ahead of his time when he said, "You can have some of you computer working all of the time and all of your computer working some of the time but..." It was he that said that, wasn't it? how abt rs232 and an usb adapter? I have to show live changes in the sensor outputs, which software do u suggest? > >> >>I m doing a project in which i have to display 3 sensor outpus in a > >> >>graphical [quoted text clipped - 45 lines] > > I agree. Looks like he should be able to build something out of these. > how abt rs232 and an usb adapter? I have to show live changes in the sensor > outputs, which software do u suggest? Too much trouble. Use the Phidgets stuff. They have programming examples and API's on the page I mentioned earlier. I have scratch-built both serial and parallel real-world controllers in the past, and I would never go back to that - the newer stuff is so much easier to use and works cross-platform. > > >> >>I m doing a project in which i have to display 3 sensor outpus in a > > >> >>graphical [quoted text clipped - 45 lines] > > > > I agree. Looks like he should be able to build something out of these. |
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