 | | Help with connecting pyroelectric sensor
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I am hoping that some of you electronically-minded people can help me out here. I just bought a pyroelectric sensor, and since it cost almost $50 USD, I don't want to break it. I want to connect it to the rcx, but it's not as simple as I'd like it (...) (25 years ago, 6-Sep-99, to lugnet.robotics)
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| | Re: Help with connecting pyroelectric sensor
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<lego-robotics@crynwr.com> wrote in message news:84e2ed7a.250598...aol.com... (...) I (...) at (...) max (...) You need at least part of the circuit with the opamp. All the diodes, C1 and R1. I doubt you need a +5v regulator for the supply, but you (...) (25 years ago, 7-Sep-99, to lugnet.robotics)
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| | RE: Help with connecting pyroelectric sensor
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(...) I'd use one of the little reference diodes that make a precise 2.5 volt level from a dropped Vcc. I think it's an LM375-2.5. The reference is probably there to guarantee a certain output for a certain range, independent of the supply voltage. (...) (25 years ago, 7-Sep-99, to lugnet.robotics)
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