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Light sensor circuit 0-5 volt output help required
- Subject: Light sensor circuit 0-5 volt output help
required
- From: "ukhauk" <jasonstarkie@xxxxxxxxxxxx>
- Date: Mon, 10 Apr 2006 08:58:48 -0000
I am trying to construct a light sensor circuit with an analogue
output 0-5 Volt DC. Supply voltage around 12 volts
I have been trying to adapt maplins MK125 Light Sensitive Switch
http://www.maplin.co.uk
The MK125 uses an op amp to compare a setpoint voltage with the
voltage across a light sensor. Can I limit the output voltage on the
op amp using feedback ?
Or am I on the wrong track, has anyone come across such a circuit.
I want to use the sensor as a Dusk to dawn sensor ideal for example
on a web brick / barionet. Having an analogue signal would allow
different actions dependant on various levels.
any help or suggestions appreciated I have spent days on google
without succsess.
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