 | | Re: Controlling an Electromagnet (LSM)
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(...) Or... avoid both stock relays and chip-based switching. For a linear motor you want to trigger each electromagnet in a series, you ideally you might like a "push-pull" system, where you aren't just turning a magnet on and off, but reversing (...) (14 years ago, 31-Dec-11, to lugnet.robotics.rcx)
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| | Re: Controlling an Electromagnet (LSM)
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Iain, How much power do you want for the electromagnets, and how rapidly do you need to switch them on and off? Old-fashioned relays will give you the least power loss, but can't be switched very quickly. They also have a limited life (between 10 (...) (14 years ago, 24-Dec-11, to lugnet.robotics.rcx)
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| | Controlling an Electromagnet (LSM)
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Hi all, It's been a while! A long while ago, while in elementary school, I used LEGO to build a manually-operated Linear Synchronous Motor (LSM) for a science fair project. I want to revisit this as an adult and built a full test track with a couple (...) (14 years ago, 24-Dec-11, to lugnet.robotics.rcx)
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| | Re: BrickOS Patches and Development
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The Bibo Patch Rollup Collection posted to SourceForge at (URL) been updated. New for this update are patches 43 and 44 43: Per the report from SourceForge user bollinge, Cygwin no longer has a problem building printf.c. A Cygwin-specific (...) (14 years ago, 15-Nov-11, to lugnet.robotics.rcx.legos)
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| | Re: MacNQC 4.05b, RCX 1.0 and OS X 10.4.6 can't program the brick
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(...) Funny I'm tripping over this just today... (...) The most weird thing happened to me today on my iMac - I've only dug out the old Mindstorms stuff last weekend and went through reviving cybermaster and Spybotics - and guess what, the RCX and (...) (15 years ago, 10-Mar-11, to lugnet.robotics.rcx.nqc)
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| | Re: 64bit driver for the LEGO USB Tower
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(...) Has anyone found a solution (other than using the serial tower or Virtual PC). Is anyone else interested in creating a 64-bit driver for Windows 7? Steve Putz steve@RoboticsLearning.com www.RoboticsLearning.com (15 years ago, 6-Jan-11, to lugnet.robotics.rcx)
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| | Lego USB Tower and the Linux Driver
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An earlier thread [ (URL) ] touched on changing the baud rate of the USB IR tower. Based on what information I have been able to find, it appears that at one time the Lego USB driver for Linux did include the ability to change the baud rate and (...) (16 years ago, 10-Sep-10, to lugnet.robotics.rcx.legos)
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| | Re: Kernel freeze when attempting to use rotation sensor
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Greetings, I would suggest comparing this code with other programs that make use of rotation sensors, such as the following: * LDCC - (URL) particular, dccdemo.c uses a rotation sensor as part of a DCC throttle. * Power Functions - (URL) this thread (...) (16 years ago, 17-Jul-10, to lugnet.robotics.rcx.legos)
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| | Re: BrickOS Patches and Development
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Re: Power Functions: There is an older thread on the topic of Power Functions at [ (URL) ] which includes links to some BrickOS-based code for Power Functions. Be sure to follow the thread to the end, as some of the links mentioned earlier on no (...) (16 years ago, 17-Jul-10, to lugnet.robotics.rcx.legos)
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| | Re: Kernel freeze when attempting to use rotation sensor
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I don't normally bump things, but this has been unanswered for over two weeks, so I think it deserves it. I really can't believe that rotation sensors would be this broken, and yet, I can't see anything wrong with my code. It really is odd... (16 years ago, 24-Jun-10, to lugnet.robotics.rcx.legos)
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