eruatchrisin.blogg.se - Pc Oscilloscope Software

What I was showing was the output of a HB100 microwave motion sensor ($3 doppler radar module).

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Among other things I put a Fluke 77 DVM under the camera, so everyone could see the output of some AA batteries drop down one millivolt at a time, while they powered up a light bulb.

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The frequency range depends on the sound card, but 20-20000Hz should be possible with all modern cards.. Followup: I brought a little Tek TDS 210 scope to the class and put it on the table facing straight up, underneath their document camera, which projected a view of it on the big screen. Gleaner Combine Serial Numbers

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I thought it would be fun to demonstrate some sensors, and I wanted to show something like a live scope trace to the class, but my regular scopes don't have a video output.. It will certainly help you *not* to be fumbling with unfamiliar scope controls during the presentation.. That was a fun moment! (I also asked how much they think this sensor cost- they figured hundreds or thousands of $, and were amazed that it cost less than one hot lunch at their cafeteria).. The low frequency end is limited by the AC coupling of the line-in signal Be aware, that most microphone inputs are only mono.. Any soundcard scope is *NOT* DC coupled Although its possible to hack a USB soundcard to remove the coupling caps and add OPAMP level shifters (+ generate a negative rail) to make it DC coupled, that's a lot of work when you can get a 2 channel usb scope for as little as $30.

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The Oscilloscope allows you to study any signal in real time, measure Possibility of damage of a PC when connecting to an unknown signal source.. I waved my hand in front of it, and it made a wavy line on the scope Then I looked up and every single kid in the class was waving both arms enthusiastically.. My daughter's 4th grade class is introducing electronic circuits and invited me to talk to them on the subject.. For showing sensors without confusion, you may actually be better off mounting a webcam on a selfie stick to the top of your usual bench scope.. Winscope is a software application that will use your sound card to sample input.. 1kHz and 16 Bit resolution The data source can be selected in the Windows mixer (Microphone, Line-In or Wave).. This worked well and everyone could see it So as it turned out, there was no extra setup needed at all from my end. 34bbb28f04