I want to add realism to my N Scale Railroad layout with a controller that sequences Interior Lights within model building to make it appear that people are moving from room to room and turning lights on and off as they move about.
I've read through a lot of this site and know what I want can be done but it exists in bits & pieces in the 555 & 556 areas of this forum. I need someone to pull it together and sketch up a workable schematic.
Requirements:
Using one or more LM555's or LM556's, control the individual on/off sequence of a minimum of 4 to 8 White LEDs.
LEDs to be on wire leads so they may be placed inside model structure.
Individual LED dimming using variable resistors/rheostats.
On & Off timing to be variable using variable resistors/rheostats and settable from approx. 10 seconds to 10 minutes. No precision required.
Sequence/operation starts with application of power & stops when power is removed..
Timing sequence may be random or repeating.
All LEDs may be on or off at same time during a portion of the sequence but not regularly. I don't want all the buildings to be "flashing" in unison.
Available power: 1.5 to 14Vdc - 500mA max
This shouldn't be too difficult to sketch up but I lack the expertise to do it myself. The finished device would be a real boon to the Model Railroading community worldwide.
I've read through a lot of this site and know what I want can be done but it exists in bits & pieces in the 555 & 556 areas of this forum. I need someone to pull it together and sketch up a workable schematic.
Requirements:
Using one or more LM555's or LM556's, control the individual on/off sequence of a minimum of 4 to 8 White LEDs.
LEDs to be on wire leads so they may be placed inside model structure.
Individual LED dimming using variable resistors/rheostats.
On & Off timing to be variable using variable resistors/rheostats and settable from approx. 10 seconds to 10 minutes. No precision required.
Sequence/operation starts with application of power & stops when power is removed..
Timing sequence may be random or repeating.
All LEDs may be on or off at same time during a portion of the sequence but not regularly. I don't want all the buildings to be "flashing" in unison.
Available power: 1.5 to 14Vdc - 500mA max
This shouldn't be too difficult to sketch up but I lack the expertise to do it myself. The finished device would be a real boon to the Model Railroading community worldwide.