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Asper

Eurobricks Citizen
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  1. Asper
    Very nice train!
  2. Asper

    [MOC] ICE 3

    Asper replied to Gabor's topic in LEGO Train Tech

    Great! I like the front.
  3. Asper
    Beautiful train - great jobon the shape!
  4. Asper
    Last weekend this ran for two days at Bricking Bavaria. In the youtube video you can see our city/train-layout: The two trains on the inner ring share one track and are controlled by an raspberry PI. For the raspberry I built this small hill to hide all the cabling: "bricks n bolts" and I are currently working to integrate more options to remote-control trains and work on the user interface. He has integrated the brickster modules and I could control a train with an ESP8266 with motor-shield. I just did not find time to configure the raspi as wifi hot spot. So only SBricks were used.
  5. Asper
    Thank you! I integrated this on site into an existing layout - it's a result of restrictions in place, time and cable length.
  6. Asper
    Wonderful! great job on the pantographs and the curved front!
  7. Asper
    (Warning: this is not for purists, I even had to cut one LEGO cable!) A while ago I started playing with electronics combined with LEGO trains (http://www.eurobrick...22#entry2473697). But also using an Arduino with LEGO is great fun, my first finished project is an automatic level crossing: You can see two PF motors moving the barriers. An Arduino uses four reed switches to count the coupling magnets on two tracks - the barrier will open only if no train is between the reed switches. The PF motors are connected to an Arduino "Motor Shield". Both motors are connected to the same output. So I had to cut a PF cable - but I'm using both parts, since a PF battery box provides the power. Two red LEDs blink while the barriers are closed. The barriers are really fast, and closing them has higher priority than opening (you can see this in the video at 0:14). The orientation of the reed switches is critical, so not every train is detected in every direction on every track. We used this at "Bricking Bavaria" and the second day we found a combination that worked and the level crossing worked from 10-17.
  8. Asper
    Great collection! I really like these wonderful trams!
  9. Asper
    This is so wonderful. Hard to tell which of the pictures is LEGO and which is the prototype. Great!
  10. Asper
    I found the pictures of the prototype a few years ago. Very interesting train and a great MOC! Great job with all those curves. Wonderful!
  11. Asper
    Wonderful engine! Great model, you captured many details and the shape very well!
  12. Asper
    What a wonderful train station! Great functions, design and the size is looking perfect for LEGO trains. And a great presentation also!
  13. Asper
    Wonderful engine!
  14. Asper
    Great building! I like it very much!
  15. Asper
    I just finished reading it. Congrats to this great book! A lot of information about the LEGO hobby and building techniques is included. The models are really wonderful. For me the most interesting part is following Holger designing MOCs based on real prototypes. Great book, highly recommended!
  16. Asper
    Thank you all for the kind feedback!
  17. Asper
    These trains train tour through the garden of Karlsruhe's palace from April to October/November - at least the steam engine. Today the "Porsche" engine can only be seen occasionally. The railway was build for the "Bundesgartenschau" in 1967. There were several trains with Porsche engines (e.g. http://ka.stadtwiki....rschelok-03.jpg). On normal weekdays the trains are run by a diesel engine (https://de.wikipedia...nbahn_SGB60.jpg) - I have to build this next. The original train has a 600mm gauge. I used roughly "miniland" scale (1:20) to build this model. More information and pictures can be found here (all in german): - https://de.wikipedia...nbahn_Karlsruhe - http://ka.stadtwiki....hlossgartenbahn For an exhibition I built a small layout together with my daughter. "Building" people is great fun! Once they return I will work on motorization. (bigger images on flickr)
  18. Asper
    interesting shape of the locomotive.I like it!
  19. Asper
    Great diorama! I like how you made the smoke!
  20. Asper
    This all sounds very interesting. I'm confident to handle the software part (webserver, firmware, GUI on a touch screen, maybe an app for smart phones). But I do have no experience in making custom hardware. I put together an arduino with a "motor shield". This works with PF motors (I did not test them under heavy load) but it's far to big to be integrated into a real layout. That's why I ended up with SBricks. So if anyone can give guidelines or instructions how to build a SBrick replacement, I would be one of the first "beta testers".
  21. Asper
    as JopieK mentioned, the raspberry pi has 4 USB ports. So I plugged in a BLE USB stick into one of them. One of the other ports will get a WLAN stick. I also did experiments with an Arduino and IR LEDs but for me the PF-IR protocol has two major drawbacks. There are only 8 channels, and at exhibitions you will probably find another MOC using your channels. (And it may take some time finding out, that the ferris wheel in the middle of the layout is controlled by PF and that's why your trains start or stop randomly...). And at exhibitions you won't reach your trains at the other end of the layout. There are no reflecting walls and often you have direct sunlight interfering with the remote. So I'm looking for some kind of radio control. I did not know the ESP8266 - sounds interesting, thank you for this hint.
  22. Asper
    thank you! I also played with an arduino to control LEGO motors and read in sensors. The major advantages of the SBrick for me are its size and availability - it's a very compact solution to get some remote controlled device into my trains without the need to build my own electronics. So currently this is the only solution I know to achieve something like this with off-the-shelf products. Maybe I need the arduino as I/O device for the pi when it comes to operating the switches or reading in more reed switches. But then size does not matter so much and I can use the available arduino boards.
  23. Asper
    thank you! Currently this is just a set of python scripts running on the raspberry pi, so you need something like ssh to connect and start this - I don't think this is what you are thinking of... But I'm planning to have a web server on the pi, so any device can connect and control the SBricks - without installing custom apps.
  24. Asper
    "proof of concept" using one raspberry pi to control two LEGO trains: The trains are detected by reed switches. The Raspberry PI sends commands over bluetooth to the SBricks mounted on each train. The code on the raspberry PI is based on this code: https://github.com/J...ick-Stress-Test by GitHub user JorgePe. He also has details on the implementation in the SBrick wiki: https://social.sbric...client-scripts. The only cable-connections are from the raspberry PI to the USB power supply (white box) and to the reed switches. Even at this early stage, this can be helpful on small train layout at exhibitions by adding some random elements in the timing.
  25. Asper
    Wonderful train! I like the colors very much.
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