 | | 12V lego train device electronics FAQ?
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Hi, I am currently investing time into the possibility of automating my 12V lego train via the I2C bus. My goal is to use a less as possible (relative expensive) relays, which means that I want to put current into the 12V devices myself. I searched (...) (21 years ago, 9-Jan-03, to lugnet.trains)
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| | Re: 12V lego train device electronics FAQ?
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(...) devices (...) 12V (...) Know about what exactely? A picture about the inside of the 12V remote control point-motor is to be found here: (URL) is used in the automated level crossing and the decoupling station. The switches are only switches, (...) (21 years ago, 9-Jan-03, to lugnet.trains)
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| | Re: 12V lego train device electronics FAQ?
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Hi Guido, I'm currently working on "automating" a 12v layout as well (although I'm going the conventional analog way at the moment. so no computers involved yet). What exactly do you want to know? the 12v electronics arent real complex thingies. by (...) (21 years ago, 10-Jan-03, to lugnet.trains)
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| | Re: 12V lego train device electronics FAQ?
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(...) Maybe he needs to know how much current the devices draw? That determines what sort of relays are feasible to use, I think... I dunno. (21 years ago, 10-Jan-03, to lugnet.trains)
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| | Re: 12V lego train device electronics FAQ?
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Hi Ben, Thank you for the link to the opened 12V switch control device. It is very informative. I measured, without openening, the resistance of the coil (if I remember correctly it was about 55Ohms) but I couldn't really conclude if there was a (...) (21 years ago, 10-Jan-03, to lugnet.trains)
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| | Re: 12V lego train device electronics FAQ?
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Hi Esger, The I2C bus is just a way to talk to electronic circuits (IC's in fact) in easy way. There are only a few commands that you need to know in order to talk to the IC's. These IC's (made by philips and some others) have this I2C protocol (...) (21 years ago, 10-Jan-03, to lugnet.trains)
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| | Re: 12V lego train device electronics FAQ?
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Larry, You hit the right spot! (...) Current, diodes, resistors etc. values for all possible 12V devices. I want to put current into these devices myself by using analog circuits found in some model railroad books.... Guido PS. There is no FAQ on (...) (21 years ago, 10-Jan-03, to lugnet.trains)
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| | Re: 12V lego train device electronics FAQ?
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(...) from looking through the plug holes it looks like a resistor is in there. It's definately not just two led's in any case. Esger (21 years ago, 10-Jan-03, to lugnet.trains)
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