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Case #88: William Saw Light at the End of the Tunnel
Design News Staff -- Design News, August 13, 2006
Looking to light up the town, model railroad enthusiast William Grill developed this unique and flexible control board for driving lighting for water towers, running and crossing lights, and storefront dress-up lights. The microcontroller-based application enables the selection of four display formats using five outputs, including combinations of sequenced, bouncing, and dual beacon displays. Since the architecture is table-based, the design allows the possibility of simple redefining and customizing with longer display sequences. And powered from 7 to 18V ac/dc, the circuit uses only a few milli-amps of power.
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Get William Grill's complete instructions on how to build your own lighting control kit. (PDF)
| "Lighting Control Unit" Parts List | ||
|---|---|---|
| Amt | Part Description | Allied Part # |
| 1 | 100 uF 25V Cap | 507-0037 |
| 1 | 47 uF 25V Cap | 507-0032 |
| 2 | 4700 pF ceramic Cap | 507-0423 |
| 4 | 4.7K 1/8W resistor | 296-6222 |
| 2 | 2.2K 950-0001 | 296-6218 |
| 2 | 1N4148 diode | 950-0001 |
| 1 | 78L05 regulator | 263-0136 |
| 5 | 2N3904 transistor | 431-0406 |
| 1 | 2PST board mount switch | 948-0152 |
| 1 | proto board .1 in squares | 237-0026 |
| 2 | 3 Post Terminal | 409-0082 |
| 1 | 4 Post Terminal | 409-0083 |
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This article is missing the assemler code and the .zip file.
Where did that go?
Mark Kunkle - 2009-19-2 15:16:24 EST -
Author can be reached at contact@riverheadsystems.com
Other article that may e of interest are also this website
- 2008-13-3 16:21:31 EDT -
William Gills email address is needed to follow up on his project. The .zip does not open fully.
His idea will be explained more fully on Talking Electronics website by
Colin Mitchell talking@tpg.com.au
- 2006-18-8 11:19:15 EDT -
Wonderful article showing how new technology is being incorporated into model railroading. The hobby has come a long way from just a circle of rail around the Christmas tree. Would like to see a future article on digital command control
that is being used to control multiple trains on layouts.
- 2006-16-8 13:49:38 EDT -
your 8/15 newsletter is dated 2005
- 2006-15-8 07:57:39 EDT
