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Timeline for Arduino ADC behaving oddly

Current License: CC BY-SA 3.0

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May 6, 2012 at 3:52 vote accept Shubham
Apr 13, 2012 at 18:48 history edited Shubham CC BY-SA 3.0
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Apr 13, 2012 at 18:43 comment added Shubham It's a simplified drawing of the opamp circuit, I guess I should have clarified that in the question. See my earlier comment to see the full amp circuit.
Apr 13, 2012 at 12:05 comment added AngryEE Shouldn't you be using some sort of feedback on your op-amp? I find it hard to believe that it's producing anything other than a square wave all the time.
Apr 13, 2012 at 6:41 answer added stevenvh timeline score: 3
Apr 13, 2012 at 6:09 comment added Shubham Extra info if it helps: the opamp is a MCP6022 and there are 12 2n4401 NPN transistors connected to 12 digital IO pins. Also here is the amplifier circuit if you are interested: lh4.googleusercontent.com/-NoR336KuNxI/T4fCuknClLI/AAAAAAAAAZE/…
Apr 13, 2012 at 5:54 history asked Shubham CC BY-SA 3.0