Sensor input to light ouput - Electronic Circuits Projects Diagrams Free

Baillieboy · 26th May 2009, 01:26 PM

Hi everyone,

I'm a student trying to create a lighting system which varies light intensity with distance. A ultrasonic sensor takes readings of distance and ouptus a voltage at between 0.1 (at a distance of 10cm) and 1.4 volts (at a distance of 100cm). I'm looking to alter this so the closer the user is the higher voltage.

I woulyud like to take the 1.4 volts and produce a voltage of about 5 volts and the 0.1 volts should produce about 12 volts. How on earth do I do this?

The lecturer helping me has vanished and I'm in deperate need of assistance can anyone direct me to where I can get this or help find a curciut to do it?

Cheers

ericgibbs · 26th May 2009, 01:44 PM

hi,

Are you able to work with operational amplifiers.?

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26th May 2009, 01:26 PM	#1
Baillieboy	Sensor input to light ouput Hi everyone, I'm a student trying to create a lighting system which varies light intensity with distance. A ultrasonic sensor takes readings of distance and ouptus a voltage at between 0.1 (at a distance of 10cm) and 1.4 volts (at a distance of 100cm). I'm looking to alter this so the closer the user is the higher voltage. I woulyud like to take the 1.4 volts and produce a voltage of about 5 volts and the 0.1 volts should produce about 12 volts. How on earth do I do this? The lecturer helping me has vanished and I'm in deperate need of assistance can anyone direct me to where I can get this or help find a curciut to do it? Cheers

26th May 2009, 01:44 PM	#2
ericgibbs	hi, Are you able to work with operational amplifiers.? __________________ Eric " Good enough is Perfect " I will NOT answer PM's requesting technical help, please use the Forum PIC tutorials: Nigel's www.winpicprog.co.uk/ Bill's: www.blueroomelectronics.com/