AMJ Posted January 30, 2011 Share Posted January 30, 2011 I had a thought the other day that it would be feasible to run many effects using as few functions as possible! ABCD - Aux outputs Inital idea Marker lights are fed as normal from A B Headlights could be turned on using C but using either a logic AND gate or a transistor so that HA = A.C and HB = B.C The H/L at the correct end would light up depending on direction Tail lights Aux D to turn them on TA = ¬A¬B.D + A.D and TB = ¬A¬B.D + B.D This would give both on if no other lights on else the tail lights at the rear (only) on if lights on. With aux D off the tail lights would be off. Normal thought would be a aux for each so saving 2 aux's Link to post Share on other sites More sharing options...
Edwin_m Posted January 30, 2011 Share Posted January 30, 2011 Why not a counter chip with as many states as you like, and pulse a function to scroll through them. Then some sort of diode matrix from the counter outputs to the lights, with separate flasher circuits for any that need to flash. Link to post Share on other sites More sharing options...
Nigelcliffe Posted January 31, 2011 Share Posted January 31, 2011 Suggest reading Paul Harman's DIY Decoder documentation. He has stuff on driving against the decoder outputs, which achieves some of the multiplexing which the original poster is describing. Not many decoders will let you do this, but some will. Link to post Share on other sites More sharing options...
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