This is actually the way you want the station to response to incoming train (from the nearest connected block) So base on your layout,you can program speed of train in any track for example when climbing up hill that want more power or slow down when passing station. You can program voltage level by using PWM setting in arduino. This can be achieved by using two voltage levels, for normal speed and parking. Train detection and track power control programīasically, if the train is on an N track, the N-1 track power must be at lowest level that stop the train but still has enough current to detect the train. Power supply for all all train and controller.ġ. Power IC (UN2003) for track power control using PWM.Ħ. IR sensor for detecting train head position at station.ĥ. Bi-direction Motor control module for Turn-out controlĤ. Track occupancy using Current sensor module. *due to I/O point limit on Arduino, you can have maximum 16 block per board.Ģ. The layout is DC layout, Following list are main components for the project. If you need the trains running in two directions, you need two separated loops. Jettisoned the fans! Really the only thing that’s gone wrong with the systems in 12 years except one touch screen going after 10 years, but to its credit it was an Apple 24” that had a touch screen added to it and those screens were not designed for touchscreens.įirst, I must say that this layout has some limitation, it’s one way layout. Then again 3 years later and then I put a temp recorder in the cabinet and checked a few days without a fan and damn if it wasn’t within a few degrees of the ones with the fan. Damn if the fans started making noise after a couple of years and replaced them. I put vents i the top and bases for conductive cooling in the cabinet and a good quality 5” computer fan in each cabinet just to be safe, but never bothered to check to see if needed. One exhibit that’s been going 12 years now has passively cooled Mac minis in small cabinets along with a hd video digital playback unit. We never bothered with stinkin boxes as just heat traps. They guys using them did it empirically just attaching a heat sink to the processor and it stayed cool. Mainly they do looping videos and some simple interactivity so pretty low power activity. I’m sure there are some that require fans now, they have been growing in power and speed in the last couple of years.
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