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for Model Railroading

What is the J&C Studios O Gauge Archive?

J&C Studios O Gauge Archive


O Gauge / O Scale Forums and Individual Blogs for Model Railroading

What is the J&C Studios O Gauge Archive?
(Guest)   JCS Archive   LED Lighting   School Bus LED lighting - Headlights, Flashers, Interior
 
This topic is also posted here:
School Bus LED lighting - Headlights, Flashers, Interior
stan
Joined: May 18, 2008
Topics: 17 Replies: 16 Topics: 17
My Archive Category |
posted Nov 24, 2010: 

The closest model of a conventional school bus I've found for 1/48 is the Sunnyside 9852. The 1/48 Circuscraft sitting children figures fit OK.




3mm white LEDs for headlights:




3mm white LEDs on the ceiling for interior lighting:




red and amber 0805-sized surface mount LEDs pressed against the upper flasher front and rear lenses:




I should have made this externally controllable with control wires to trigger the action, but it is just an on/off switch powered by one AAA battery which is all that would fit under the seats. The 1.5V is stepped up using a boost regulator to about 4V which is needed for the white LEDs. The guts are fairly involved as DIY hobbyist projects go requiring programming of a microchip and fabrication of a circuit board to cram in all the parts:




Some other add-ons are engine sounds and children laughing, and a swinging stop sign synchronized when transitioning from amber to red flashing.

Click here for
short video of the school bus in action
 
JohnBoy
Joined: May 14, 2008
Topics: 110 Replies: 517 Topics: 110
My Archive Category | My Website
posted Nov 24, 2010: 

You never cease to amaze me with how much you can cram into the smallest spaces. This has got to be coolest school bus in O-gauge!

John
 



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