Hello!
Here is the part of the circuit who don=B4t works
properly, maybe wrong values at the resistors?


------------------------- +12V
I                                    I
I                                    I
LDR                              I =20
10lux 3-20k                   I
I                                    I
330R                             I
I------------------------PNP
I                                      I
pot 200k                       Relay  =20
I                                       I=20
I--------------------------- 0V

Regards

=C5ke Neehr

----- Original Message -----=20
From: "p.cousens" <p.cousens@BISCIT.BIZ>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Friday, July 25, 2003 10:06 PM
Subject: Re: [OT]: LDR-problem


> You will need a delay and or hysterisis or the lamp will be switching =
on
> and off more than once a day=20
>=20
> What's the app and circuit=20
>=20
> Peter Cousens
> cousens@biscit.biz=20
>=20
> > -----Original Message-----
> > From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]
> > On Behalf Of =C5ke Neehr
> > Sent: Friday, July 25, 2003 5:52 PM
> > To: PICLIST@MITVMA.MIT.EDU
> > Subject: [OT]: LDR-problem
> >=20
> > Hello!
> >=20
> > I=B4m using a LDR-resistor as a sensor for the light to steer a =
relay.
> > Is there any method to reduce the sensitivity
> > so the relay don=B4t switch on/off when the
> > lamp is on, except to hide it from the lamplight?
> >=20
> > Regards
> >=20
> > =C5keNeehr
> >=20
> > --
> > http://www.piclist.com hint: To leave the PICList
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>=20
> --
> http://www.piclist.com hint: To leave the PICList
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>=20

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