Updates

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  Wolly Barabash → Emi Grago: Hi Emi, because the Lego motors are not smart motors they will turn on in sequence one after the other. That makes starting and turning difficult. I turn on the motors full power for about 0.4 s and then throttle them down to the speed I want and my...  moreHi Emi, because the Lego motors are not smart motors they will turn on in sequence one after the other. That makes starting and turning difficult. I turn on the motors full power for about 0.4 s and then throttle them down to the speed I want and my tanks or cars go fairly straight, good enough for going around in a room. When turning, I have to adjust and compensate by running one motor at less power than another for a short time so the tank goes back to a straight line. It is trial and error to see what works best, but fortunately the error in turning can be overcome. If the Sbrick extensions for Scratch could use variables for motor power like the old version then this problem could be solved with math.  less

  • December 8, 2017
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  Wolly Barabash replied to a topic in the forum Suggestions:

  A Gyro, it would solve the problem of turning properly and returning to original position. Rotary encoders and GPS are way too complicated and require new hardware on peripherals that you do not build, or a lot more power. A small gyro chip would work...  moreA Gyro, it would solve the problem of turning properly and returning to original position. Rotary encoders and GPS are way too complicated and require new hardware on peripherals that you do not build, or a lot more power. A small gyro chip would work wonders for any application I can think of.  

  • December 8, 2017
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  Wolly Barabash replied to a topic in the forum Support:

  Kees Jan Koster said:
  One of my SBricks seems to be (ahem) bricked. <>
  Kees...  moreKees Jan Koster said:
  One of my SBricks seems to be (ahem) bricked. <>
  Kees Jan
  
  Hi Kees, one of my sbricks is recognized by the s2bot application on Windows, however it cannot initialize. Instead of the name 'sbrick' s2bot displays an alphanumeric : "BB-F245".
  Have you tried your sbrick on Windows with s2bot? I wonder if you get a code as well.
   
  Regards,
  Wolly
   
     

  • March 27, 2017
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  Wolly Barabash replied to a topic in the forum Support:

  Hi Marc, I have a sequence distance sensor as a switch. Perhaps you can simply change this to a tilt sensor to see if it works. I have to get the distance sensor to work first...  This rotates the motor in one direction and then reverses it. Pretty...  moreHi Marc, I have a sequence distance sensor as a switch. Perhaps you can simply change this to a tilt sensor to see if it works. I have to get the distance sensor to work first...  This rotates the motor in one direction and then reverses it. Pretty simple but it's a start :)
  .
     

  • February 3, 2017
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  Wolly Barabash commented on Tor Johansen's video.

  • February 2, 2017

  • 4 people like this
  • 
    Wolly Barabash Good work. I recommend that you post a screen shot of the profile program design along with your demonstration to make it useful.

    • February 2, 2017
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  Wolly Barabash replied to a topic in the forum Support:

  Hi Marc,
  Thanks for the correction, I did not know they called this a "circuit" as I was concentrating on getting it to work with Scratch first.
  I had a quick look at the Profile Designer and I see what you mean.
  I need to get this to work as well as I...  moreHi Marc,
  Thanks for the correction, I did not know they called this a "circuit" as I was concentrating on getting it to work with Scratch first.
  I had a quick look at the Profile Designer and I see what you mean.
  I need to get this to work as well as I cannot get it to work with Scratch, might as well try it with my phone. Did you find the download link for the "KIT" that is mentioned in the instructions, to get the ball rolling?
   
     

  • February 2, 2017
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  Wolly Barabash replied to a topic in the forum Support:

  Why not purchase the Lego tilt sensor from their WEDO 1? It's on Bricklink quite often.
  A picture of the tilt sensor:
  http://www.brickshelf.com/cgi-bin/gallery.cgi?f=434406
  There is also a schematic of the tilt sensor that you can...  moreWhy not purchase the Lego tilt sensor from their WEDO 1? It's on Bricklink quite often.
  A picture of the tilt sensor:
  http://www.brickshelf.com/cgi-bin/gallery.cgi?f=434406
  There is also a schematic of the tilt sensor that you can build:
   
  http://ofalcao.pt/blog/2014/the-lego-wedo-tilt-sensor  

  • February 2, 2017
• 
  Wolly Barabash has just signed up. Say hello!

  • January 28, 2015