Sunrise To Sunrise LED Model Lighting With Complete Scenery Animation Control

The code in this page will change the daylight conditions in your diorama or model railroad and at the same time turn on and it also can control auxiliary functions such as turning on and off street and house lights, signs, a thunderstorm, arc welders, playgrounds and carnivals, and anything other animation that you wish to add.

The code is flexible and adaptable to your needs and desires.

The Sunrise Sunset Network

This Nano based network fully animates your scenery.  The Sunrise Sunset Pixel Controller triggers external Nano boards to carry out their individual programs.  Each of these  boards, as used in my layout, are fully explained in other pages of this website. Each of those you can customize to suit your needs.

In this page we will focus on the Pixel Controller.  And we will show you videos of it operating in dioramas and a shelf layout.

sunrise sunset metwork plan

Expand this image to show how we control the lighting animations on our layouts and dioramas.

 

Materials Required

arduino nanoArduino Nano

 

 

ws2812b pixel led strip

Pixel LED Strips – WS2812B

 

 

 

ws2812b single pixel ledPixel LED –  These are preferred  to standard LEDs because of the wiring simplicity.  You only need a single connection to your micro controller.  The + and – connections simply go to your 5 v power bus.

 

 

 

 

perferated prototype board

Perf Board

 

 

 

resistorsResistor – 470 ohm and 10k ohm resistors. You need one 470 ohm resistor per LED strip and one 1ok ohm resistor for each auxiliary function board.

 

 

 

1000 uf capacitor1000 uf capacitor – this is a minimum value.  It mitigates the power surge that can burn out LEDS when you turn power on.

 

 

 

pin headersPin Headers

 

 

 

 

Wall Wart Power Supply

5 volt DC regulated Power Supply – The leds and the micro controller will be powered from the same source.

 

 

 

 

Code Explanation

The code controls sunrise to sunrise, street and security lights, building lights, a thunder storm arc welder, building sounds, everyday background sounds.  For your convenience, it is kept on Pastebin where you can review and download it. Click Here

The code is made up of a few loops.

Each loop controls a specific routine.

The basic daily cycle is set so that a 24 hour day lasts 24.5 minutes real time. You can change that to suit your needs.

The code contains explanatory comments so that you can logically make changes, should you wish to do so.

Changes include adding or removing routines to suit your needs.

Wiring

Pixel LEDs require special consideration.

pixel led strip wiring diagramNote that the Pixel LEDS have a direct connection to the power supply.  They will draw too much current for the micro controller.  So to avoid burning out the micro controller, power them independently but from the same power supply.

 

 

 

 

The LED And Auxiliary Control Board

 

pixel led control board wiringThe control board top – There are 3 resistors for the 3 pwm pins that control the strip.  And thee are 4 10k ohm drop down resistors on the pins that go to the auxiliary boards.

There is provision for the control of 3 Pixel strips or a line of pixels not in a strip wired such as you would to add lights to a building.

 

 

 

 

 

soldering on pixel led control board

 

The control board bottom – The nano and led strips are powered from the same 5 v DC power supply.

The capacitor protects the LED strips from power surges that might burn them out.

 

 

 

Sunrise Sunset Video Demonstration

 

Diorama Lighting

Click on the image to see how it works.

 

 

 

 

Questions, Comments, Help

If you have questions, comments or need help making or animating your own diorama, contact us by email or through out Facebook page messenger at ModelSceneryTutorials.

 


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