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JopieK

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Everything posted by JopieK

  1. JopieK
    Well, but isn't the Pi 3 a little bit an overkill for 'embedded' applications?!
  2. JopieK
    Nice idea ;) now that the Pi Zero also has WiFi / Bluetooth it will be great for LEGO applications I think.
  3. JopieK
    You could use small magnets, I don't have experience how easy magnets are to solder to though and make sure you properly insulate them. Are you going to use i2c then or? For i2c you will already need four wires you know...
  4. JopieK
    Or make a "Template" from the bricks you want to share across multiple projects.
  5. JopieK
    Basically you need an XL motor and a Power Source. A remote receiver and controller might be handy. There are alternatives and the link by pirzyk is a good one indeed!
  6. JopieK
    Very nice, I also collect original stickers, if I want to reproduce stickers I always want to have the originals first. Stickers are not a problem, the fact they are sometimes so expensive and difficult to use is the problem.
  7. JopieK
    Please read our rules first before posting! Thank you.
  8. JopieK

    hi!!

    JopieK replied to Acatus82's topic in Hello! My name is...

    Welcome Acatus82, enjoy your stay!
  9. JopieK
    I know that Patrick from BeLUG is good at repairing 12V motor, maybe send him a message?
  10. JopieK
    Hi Simonjstone. Welcome to Eurobricks. Please don't bump. And we are a LEGO forum so we focus on LEGO here and not on non-LEGO-brands.
  11. JopieK
    Very nice indeed! Better not really cut it in the LEGO version though ;) I like also your solution for the yellow markings incorporating them with the railing.
  12. JopieK

    Bat Train

    JopieK replied to jlassen's topic in LEGO Train Tech

    We have seen the Ghost Train some years ago of course :) but indeed: way too specific, I'm afraid LEGO finds Trains already very niche.
  13. JopieK
    Welcome David, enjoy your stay!
  14. JopieK
    That tiger is great! Spider is also nice. We always need more animals in 'city' ;) I also like the beach set, same idea as 'the park' from last year, that one was one of the only city sets I bought last year.
  15. JopieK
    Hi Burkus, welcome to Eurobricks and Train Tech. Please note that you should be 18 years old to come here, you agreed on that when signing up, EB is for AFOL's. I'm a little concerned on why you joined and what you expect from others in reaction to your thread. I'm also concerned since you make two posts in the same topic, maybe only a beginners mistake but well... Hope my fears don't become reality. Until now enjoy your stay but please read the rules (see my signature) and obey them. Greets Johan
  16. JopieK
    Peeron always used to be a great resource indeed. I think brick factory is the best for instructions though. Or http://letsbuilditagain.com.
  17. JopieK
    Maybe finally time for a LEGO Idea Train / Tram item?!
  18. JopieK
    It seems like a breadboard indeed but has an Arduino in it. I'm not sure whether there are two Arduino's in it, probably the Atmega16U2 is for programming the main one: the ATmega328P that is the chip for typical arduino's (although the P variety is a bit more sophisticated than the one from a Arduino UNO). It has an interesting 'LEGO compatible' bottom: Not sure why they reversed the studs in the middle though.
  19. JopieK
    Maybe not a train thing at first glance but for people looking to start using LEGO + Arduino I think it will be great: STEMTera (Black)
  20. JopieK
    No you never said indeed ;) But Eurobricks is about sharing ideas and I like your approach as well! Hope others find this also useful. Even without a lot of technical know-how it still is very doable I think!
  21. JopieK

    First Train

    JopieK replied to atl yt's topic in LEGO Train Tech

    And how did your son like it or is he < 1 years old ;)
  22. JopieK
    Very nice! Looks really neat Pakita!
  23. JopieK
    Very nice dcht, looks a lot like the original!
  24. JopieK
    Well it uses software PWM then and not hardware PWM: https://www.arduino.cc/en/Reference/Servo it apparently uses the hardware PWM pins of pin 9 and 10 and then adds some timing magic to support even more servo's. While it theoretically can support so many servo's I can promise you you will run into problems when field-testing, I have seen a lot of our first-grade students struggle with even one ore two servo's (without the external power supply I must say that makes a big difference already) I use a 4017 multiplexer between the Atmel chip to make things much more reliable. Remember that if the point is set in either a false direction or even faulty one (between straight and bent) you get derailments so it should be as reliable as possible of course. You can open it in Eagle CAD. Nowadays I always use SMD parts and make ground planes but since I formally only have a software background I learned myself the electronics parts (our students only use 'bought' stuff so they are also not 'bothered' by making PCB's themselves although it is a lot of fun. The small prints to the right of the PCB are IR beacons, I currently don't use them, but one could use them to send PF signals to a train or let an intelligent train detect the IR led and then e.g. stop. LEGuanO_servo_v21a.zip
  25. JopieK
    There is a difference between hardware PWM and software PWM that has nothing to do with a library it has to do with the Atmega328 chip and how it's timers work. I teach embedded systems related stuff in college so I dug a little deeper as I should know for my students.
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