Didicas

Eurobricks Vassals
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  1. Can you please explain in more detail the meaning of the train options 1. Time needed... and 3. Section Speed Coeficient? Regarding 1. the software should know when the train is leaving a section. Its defined by giving the start and end sensor of all section. So what is the function of this option?
  2. To keep you informed... in the meantime I included the technik hub control+ and the sensor 88807 with the selfdriving mode. Until now it is working how it should be, so it seems to be just a display problem.
  3. Is there anybody who can tell me if the wedo 2 sensor 45304 is the better option for the new technik control+ hub? Or do I have to use the wedo hub 45301 if I use the sensor 45304? I suppose this combination is already in use by someone?
  4. I did a new test: I placed a sensor 9583 (Wedo 1.0 Motion Sensor + SBrick) and 88807 (PuP new color and distance sensor + new control+ technik hub) next to each other and let a red train passing. At the beginning the display shows: Sensor 9583: Distance 5 Sensor 88807: Color None and Distance 15 Events trigger: Sensor 9583: Distance is below 15 Sensor 88807: Distance is below 15 + color changed to red I let the train passing the sensors. Console: All Sensor Events for Program #1 are active. Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Event #2 triggered - Technic Hub on port A has a distance below 13 Event #1 triggered - SBrick R on port D has a distance below 5 Event #3 triggered - Technic Hub sensor detected RED Event #2 triggered - Technic Hub on port A has a distance below 1 Event #1 triggered - SBrick R on port D has a distance below 0 Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Sensor Events for Program 'Program #1' are stopped. After the train passed the sensors: Now display shows: Sensor 9583: Distance 5 Sensor 88807: Color Red and Distance 1 But because the train is not next to the sensors anymore the colour should change to none and the distance to 15! I let the train again passing the sensors: Console: Sensor Events for Program 'Program #1' are stopped. All Sensor Events for Program #1 are active. Event #1 triggered - SBrick R on port D has a distance below 5 Event #1 triggered - SBrick R on port D has a distance below 5 Event #2 triggered - Technic Hub on port A has a distance below 13 Event #1 triggered - SBrick R on port D has a distance below 1 Event #3 triggered - Technic Hub sensor detected RED Event #2 triggered - Technic Hub on port A has a distance below 13 Event #1 triggered - SBrick R on port D has a distance below 9 Sensor Events for Program 'Program #1' are stopped. Display shows now after passing: Sensor 9583: Distance 5 Sensor 88807: Color Red and Distance 1 But the sensor 88807 should should show now again show color none and distance 15 as the train has already passed the sensors. Why is the distance of the Technik hub only below 13? I expect again something like below 1. I hope this info helps you to detect the problem. What about the sensor 45304 (Wedo 2.0). Is this sensor working without problems together with the control+ hub like the sensor 9583 together with the SBrick? Thank you for your help.
  5. Hello Do I understand well that the wedo 2 distance sensors 45304 work with the new control+ technik hub without any problems? So its better to use them for the moment instead of the new colour and distance sensors 88807?
  6. Yes I checked only the display. But I absolutely had not the impression that it is a refresh issue. Specialy because it was reacting when I touch the sensor (so my finger was touching at the sensor), but it was not reacting anymore at a distance of 1 cm or 2 cm where the train was passing. Anyhow I will try to create a trigger event like you say and let you know. Unfortunatelly I am on a trip this week. I took some lego devices in my laguage to test already today evening, but I forgot that my laptop is working with WIN 7 (where the Train project doesn't run) So I cannot continue testing before next weekend or during next week. Are you not able to reproduce my issue? At your side the sensor 88807 is running fine with one of the powered up hubs?
  7. I also have problems with the sensor 88807 and the automation project software. I was not able to test the sensors with the powered up App, because the control+ hub is not connecting with my mobile phone S7. I do not know why, may be to old. When I brought the sensors I got in the lego shop the information that the sensors are not yet working with the powered up App, so I am woundering that you are able to use them. Is there a new app version?
  8. Dear all Is there anybody who can provide me his experiance with the new control+ hub and distance sensors? With the new color and distance sensor 88807 I have the problem mentioned in my last post. Is there anybody who is already using the distance sensor 45304 successful connected to the new control+ hub? What are you using already successful? I use until now only the SBricks together with sensor 9583 successful. Now I need some more sensors in my train project and I like to avoid to buy many devices which will not help me. Thank you very much for your feedback! New remark: I tested the color and distance sensor 88807 in the same way but now with the powered up train hub. With this hub I had the same problem like with the control+ hub. Is anybody using one of the two powered up hubs together with the wedo 2 sensor 45304? Hopefully they are working?
  9. Hi Cosmic42, I am currently using SBrick and WEDO 1 for distance sensoring. As V1.5 is available I ordered the new control+ hub and the new powered up color + distance sensors 88807 in order to replace the old sensors step by step. Unfortunately my testing failed with the new devices. I connect one control+ hub and two distance sensors. New Hub Found of type POWERED_UP_HUB Hub Technic Hub is connected! Port Connected: B of type BOOST_DISTANCE Port Connected: D of type BOOST_DISTANCE Are they realy BOOST_DISTANCE or is this already wrong? In any case after starting they show color red and distance 15. This is only changing if I touch with my finger the sensor, already in a distance of 1 cm nothing happens (1cm = currently the distance where the train is passing). After I am touching the distance changes from 15 to 1 and stays at 1 even if I remove my finger. If I touch the second sensor then the second sensor changes from 15 to 1 and only then the first sensor changes from 1 to 15. Again these values stay after removing the finger. I have to touch again the first sensor for any changes and so on... What is going wrong? Thank you for your support. New remark: Is there anybody who has already tested the train software with the control+ hub together with the sensor 88807? Is it working fine for other users? Do I have to do something special to get it okay? Or is it better to use the distance sensor 45304 wedo 2 together with the control+ hub? But of course I want to avoid to buy again other sensors as I already brought several 88807.
  10. I have a little bit time today, so I made a test with one train like recommanded. Scenario: 1 trains and 3 sections (0,1,2) and without any switch. To detect the end of my sections I am using 3 wedo 1.0 motion sensors which are linked with several sbricks. The train is runnung with a powered up hub. My sensors are showing always a distance value of about 4. If a train is passing the sensors the value goes down to 0 for a short moment. Afterwards they show again the value about 4. The first train has the start position in sector 0. I defined the path 0, 1, 2 , 0. Now the train drives continuisly from one section to next one. That´s what I expext because in this scenario there can be no collusion with another train. I get the messages below... ... HUB NO.1 - Allowed to move to Section 1 HUB NO.1 has cleared section Section 1 Event #1 triggered - SBrick R on port C has a distance below 4 Event discarded - Unknown train on Section 0, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 Event discarded - Unknown train on Section 2, nothing done HUB NO.1 has cleared section Section 2 HUB NO.1 - Allowed to move to Section 2 Event #1 triggered - SBrick R on port C has a distance below 4 Event discarded - Unknown train on Section 0, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 Event discarded - Unknown train on Section 1, nothing done HUB NO.1 - Allowed to move to Section 0 ... I try now to understand what the messages are meaning... Obviously the programs recognice always in the other two sections an unknown train. Is the reason for this because the distance avalue is below 4? Is value 4 a fix limit value? Below 4 means a train is passing the sensor, higher than 4 means no train is passing the sensor? Is there any possibility to set the limit value on a defined level? In my case is 0 if the train is passing and about 4 if there is no train. With my sensors the maximum value is always 5, I never saw a higher value => ??? Next to this I read somewhere in the forum that I have to define something manuelly in case of using sbricks, but I do not find this anymore. May be this is the reason why it´s not working. In the block of every section there is a window "configure" and excute "customer code". Is this an option to define what shall happen at which event? May be I have strange question, but the reason could be also that I am still trying to understand how it works. Thank you in advance for your help to understand how the software works and to get my trainings running with a self drive mode.
  11. Okay, I will continue testing with one train hopefully next weekend. I use a transformator and no battery to be sure that the sbricks have never a low voltage level. The motion sensor are working well, I have never wrong values, always 0 if the train passes, always 4 or 5 if there is no train. Obviously the software expects a train also in case of 4. Is there any possibility for example by C# coding to tell the software that 0 means a train is passing and higher than 2 no train is passing? Because I have no idea how to get higher values...
  12. The train motor was already selected. I took another selection, reopened and selected the train motor again. When I start now the train starts driving and stops immediately. On the message list below I read very often "Unknown train on Section 2, nothing done". Why does the software assums that there is a train? What about my detail question? How can the software know that distance 0 means that a train is passing the motion sensor and the distance 4 means that there is currently no train passing? Or is it always like that? So I expect I have to add somewhere something more to the software? Obviously there is still something I do not understand... All Sensor Events for Self-Driving are active. Anti-Collision is active over 3 sections! Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 Event discarded - Unknown train on Section 2, nothing done HUB NO.4 - Event discarded - Train is not running Event #1 triggered - SBrick R on port C has a distance below 4 HUB NO.1 - Event discarded - Train is not running Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 Event discarded - Unknown train on Section 2, nothing done HUB NO.4 - Event discarded - Train is not running Event #3 triggered - SBrick V on port C has a distance below 3 Event #2 triggered - SBrick H on port B has a distance below 4 Event discarded - Unknown train on Section 2, nothing done Event #1 triggered - SBrick R on port C has a distance below 4 HUB NO.4 - Event discarded - Train is not running HUB NO.1 - Event discarded - Train is not running Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 3 Event discarded - Unknown train on Section 2, nothing done HUB NO.4 - Event discarded - Train is not running Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 - Event discarded - Train is not running Event #1 triggered - SBrick R on port C has a distance below 4 Event #3 triggered - SBrick V on port C has a distance below 3 HUB NO.1 - Event discarded - Train is not running Event discarded - Unknown train on Section 2, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 Event discarded - Unknown train on Section 2, nothing done HUB NO.4 - Event discarded - Train is not running HUB NO.4 self-driving path is set to New Path! Resuming from Section 1 HUB NO.4 - Next section is not cleared! We slow down HUB NO.4 - Allowed to move to Section 2 Event #1 triggered - SBrick R on port C has a distance below 4 HUB NO.1 - Event discarded - Train is not running Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 - stopped because Section 0 is occupied Event discarded - Unknown train on Section 1, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done Event #1 triggered - SBrick R on port C has a distance below 4 HUB NO.1 - Event discarded - Train is not running Event #3 triggered - SBrick V on port C has a distance below 3 Event #2 triggered - SBrick H on port B has a distance below 3 HUB NO.4 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done HUB NO.4 - stopped because Section 0 is occupied Event #1 triggered - SBrick R on port C has a distance below 4 HUB NO.1 - Event discarded - Train is not running Event #3 triggered - SBrick V on port C has a distance below 3 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done Event #1 triggered - SBrick R on port C has a distance below 4 HUB NO.1 - Event discarded - Train is not running Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 has cleared section Section 1 HUB NO.4 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done HUB NO.4 - stopped because Section 0 is occupied Event #3 triggered - SBrick V on port C has a distance below 3 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 - Event discarded - Waiting to for next section. Event #1 triggered - SBrick R on port C has a distance below 4 Event discarded - Unknown train on Section 1, nothing done HUB NO.1 - Event discarded - Train is not running Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done Event #1 triggered - SBrick R on port C has a distance below 4 HUB NO.1 - Event discarded - Train is not running Event #2 triggered - SBrick H on port B has a distance below 4 Event discarded - Unknown train on Section 1, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 HUB NO.4 - Event discarded - Waiting to for next section. Sensor Events for Program 'Self-Driving' are stopped. HUB NO.1 path has been cleared and train is stopped HUB NO.4 - Attempting to clear path and stop train, but waiting for lock to finish HUB NO.4 - wait is aborted! HUB NO.4 path has been cleared and train is stopped
  13. Dear all, I like to add a screen shot to explain my problem, but how to make a picture with about 0,03MB where you are able to see something? So will will try to explain with pure text. I currently try to understand how the self driving modul is working. I started with a simple scenario, 2 trains and 3 sections (0,1,2) and without any switch. To detect the end of my sections I am using 3 wedo 1 motion sensors which are linked with several sbricks. The two trains are runnung with 2 powered up hubs. My sensors are showing always a distance value of 4. If a train is passing the sensors the value goes down to 0 for a short moment. Afterwards they show again the value 4. The first train has the start position in sector 0, the second has the start position in sector 1. I defined the path 0, 1, 2 , 0. I expect that the second train drives to sector 2 because this one is free. When this train leaves sector 1 I expect that the first train drives to sector 1 because this one is free now... and so on. See below the messages I got...No train was started... In any case I suppose I miss something... How can the software know that distance 0 means that a train is passing the motion sensor and the distance 4 means that there is currently no train passing? So I expect I have to add somewhere something more to the software? What do I have to do to get the trains running? After starting the selfdriving mode and clicking on the two green start buttons of the two trains I get the follwing messages: After a view seconds I stopped again because no train started. All Sensor Events for Self-Driving are active. Anti-Collision is active over 3 sections! Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Train is not running Event discarded - Unknown train on Section 1, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Train is not running Event discarded - Unknown train on Section 1, nothing done HUB NO.1 self-driving path is set to New Path! Resuming from Section 2 HUB NO.1 - stopped because Section 0 is occupied Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done HUB NO.4 self-driving path is set to New Path! Resuming from Section 0 HUB NO.4 - Next section is not cleared! We slow down Could not set Motor Speed to 40 for HUB NO.4 because no default port are setup HUB NO.4 - Allowed to move to Section 1 HUB NO.1 - stopped because Section 0 is occupied Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - stopped because Section 2 is occupied Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - Event discarded - Waiting to for next section. Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - Event discarded - Waiting to for next section. Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - Event discarded - Waiting to for next section. HUB NO.1 - stopped because Section 0 is occupied HUB NO.4 - stopped because Section 2 is occupied Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - Event discarded - Waiting to for next section. Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 - Event discarded - Waiting to for next section. Event #3 triggered - SBrick V on port C has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 has cleared section Section 0 Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - Event discarded - Waiting to for next section. HUB NO.4 - stopped because Section 2 is occupied HUB NO.1 - Next section is not cleared! We slow down Could not set Motor Speed to 40 for HUB NO.1 because no default port are setup HUB NO.1 - Allowed to move to Section 0 Sensor Events for Program 'Self-Driving' are stopped. HUB NO.1 path has been cleared and train is stopped HUB NO.4 - Attempting to clear path and stop train, but waiting for lock to finish HUB NO.1 has cleared section Section 2 HUB NO.4 - wait is aborted! HUB NO.4 path has been cleared and train is stopped
  14. Dear all, I like to add a screen shot to explain my problem, but how to make a picture with about 0,03MB where you are able to see something? So will will try with pure text. I try to understand how the self driving moduls is working. I started with a simple scenario, 2 trains and 3 sections (0,1,2) and without any switch. To detect the end of my sections I am using 3 wedo 1 motion sensors which are linked with several sbricks. The two trains are runnung with 2 powered up hubs. My sensors are showing always a distance value of 4. If a train is passing the sensors the value goes down to 0 for a short moment. Afterwards they show againthe value 4. The first train has the start position in sector 0, the second has the start position in sector 1. I defined the path 0,1,2,0. I expect that the second train drives to sector 2 because this one is free. When this train leaves sector 1 I expect that the first train drives to sector 1 because this one is free now... After starting the selfdriving mode and klicking on the two green start buttons of the I get the follwing messages: All Sensor Events for Self-Driving are active. Anti-Collision is active over 3 sections! Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Train is not running Event discarded - Unknown train on Section 1, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Train is not running Event discarded - Unknown train on Section 1, nothing done HUB NO.1 self-driving path is set to New Path! Resuming from Section 2 HUB NO.1 - stopped because Section 0 is occupied Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. Event discarded - Unknown train on Section 1, nothing done HUB NO.4 self-driving path is set to New Path! Resuming from Section 0 HUB NO.4 - Next section is not cleared! We slow down Could not set Motor Speed to 40 for HUB NO.4 because no default port are setup HUB NO.4 - Allowed to move to Section 1 HUB NO.1 - stopped because Section 0 is occupied Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - stopped because Section 2 is occupied Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - Event discarded - Waiting to for next section. Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - Event discarded - Waiting to for next section. Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - Event discarded - Waiting to for next section. HUB NO.1 - stopped because Section 0 is occupied HUB NO.4 - stopped because Section 2 is occupied Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - Event discarded - Waiting to for next section. Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.4 - Event discarded - Waiting to for next section. Event #3 triggered - SBrick V on port C has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 has cleared section Section 0 Event #3 triggered - SBrick V on port C has a distance below 4 Event #2 triggered - SBrick H on port B has a distance below 4 HUB NO.1 - Event discarded - Waiting to for next section. HUB NO.4 - Event discarded - Waiting to for next section. HUB NO.4 - stopped because Section 2 is occupied HUB NO.1 - Next section is not cleared! We slow down Could not set Motor Speed to 40 for HUB NO.1 because no default port are setup HUB NO.1 - Allowed to move to Section 0 Sensor Events for Program 'Self-Driving' are stopped. HUB NO.1 path has been cleared and train is stopped HUB NO.4 - Attempting to clear path and stop train, but waiting for lock to finish HUB NO.1 has cleared section Section 2 HUB NO.4 - wait is aborted! HUB NO.4 path has been cleared and train is stopped At this point I stopped the self-driving mode. No train was started. What do I have to do to get the trains running?