 | | Re: Trains, DCC, and pbForth
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| In lugnet.trains, Ralph Hempel wrote: <snip> (...) Now here's a thought--a truly automated layout, such as the following-- The RCX has sensors (either light or magnetic/light (as Jeff Elliot made up) to detect the trains as they pass) connected to (...) (21 years ago, 21-Nov-03, to lugnet.trains, lugnet.robotics.rcx.pbforth)
| | | | | RE: Trains, DCC, and pbForth
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| (...) Dave, don't take ALL the fun out of driving your trains :-) How about being able to focus on just one train that you control, but automate things so the OTHER trains don't hit yours? Your description was great, except that it involves MANY (...) (21 years ago, 21-Nov-03, to lugnet.trains, lugnet.robotics.rcx.pbforth)
| | | | | Re: Trains, DCC, and pbForth
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| (...) The basic DCC ack is defined as an increase of load on the track of at least 60ma for 6ms +/- 1ms. Normally this happens on a quiet track where all you have powered is the decoder being programmed at the time. However, if you have a bunch or (...) (21 years ago, 21-Nov-03, to lugnet.trains, lugnet.robotics.rcx.pbforth)
| | | | | Re: Trains, DCC, and pbForth
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| (...) So if I understand this correctly, my idea of inserting some kind of optoisolator or other power driver between the RCX and the track would interfere with LDCC receiving the ACK signal. Or could the sensor 1 input still be (safely) connected (...) (21 years ago, 21-Nov-03, to lugnet.trains, lugnet.robotics.rcx.pbforth)
| | | | | Re: Trains, DCC, and pbForth
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| (...) From what I've read, most DCC layouts have a separate small programming track anyways. This way a loco can be safely programmed without having to remove all the other locos from the layout[1]. So, you could hook output A of the RCX to the (...) (21 years ago, 21-Nov-03, to lugnet.trains, lugnet.robotics.rcx.pbforth)
| | | | | RE: Trains, DCC, and pbForth
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| (...) DOH! Of course. In the fire alarm business, we have a three state voltage out to the sensors. Usually the Vout is 24V and the device can respond when the voltage falls to 5 V. The devices have a power supply that is basically a big cap and a (...) (21 years ago, 21-Nov-03, to lugnet.trains, lugnet.robotics.rcx.pbforth)
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