 | | transfer data failed
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Hi there, I use legOS 0.2.4 under Linux and tried (after a few weeks) to download the firmware and get always the follwing error: firmdl3/firmdl: transfer data failed Batteries are brand new, tower was set to short and long dist. nothing helped ... (...) (23 years ago, 6-Aug-01, to lugnet.robotics.rcx.legos)
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| | RE: SetWatch() only accepts constants
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Instead of sending ByteCodes from the PC and getting the RCX to interpret them, you can construct and send the SetWatch() OpCode plus the correct "constant" time and send it through Spirit.OCX (or directly, depending of the platform). (...) (23 years ago, 7-Aug-01, to lugnet.robotics.rcx.nqc)
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| | SetWatch() only accepts constants
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I just wrote a task and function that cause the RCX to receive data from the PC and then set the time on the RCX using SetWatch(). Unfortunately, I didn't realize that SetWatch() only accepts constants. NQC complained when integer variables were (...) (23 years ago, 7-Aug-01, to lugnet.robotics.rcx.nqc)
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| | Re: Rechargeable Batteries
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(...) Roger, I believe the low voltage is more important. A side issue is the battery indicator that you access through NQC (or Robolab) set up in a scale of 0-9 volts. Fully charged alkalines are 9+ and discharged ones are 6 volts. With NiMH full (...) (23 years ago, 6-Aug-01, to lugnet.robotics.rcx)
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| | Re: Rechargeable Batteries
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(...) They have a higher voltage of about 3V and are tricky to charge, if you don't do it right they have a tendency to explode. I've never seen standalone cells and charger. Jürgen (23 years ago, 6-Aug-01, to lugnet.robotics.rcx)
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| | Re: Rechargeable Batteries
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In article <3B69FD3A.3DA7E73A@c...ects.com>, "Frank Caggiano" <caggiano@crystal-objects.com> wrote: I'm surprised no one has mentioned rechargable lithium as used in, e.g., laptops. Rather expensive, but the hold a fair amount of charge. Would they (...) (23 years ago, 5-Aug-01, to lugnet.robotics.rcx)
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| | Re: Rechargeable Batteries
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Jerry: What is the problem with the NiMH batteries? the low voltage? Or extra $$ ? Roger (...) (23 years ago, 4-Aug-01, to lugnet.robotics.rcx)
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| | Re: Is this an error in legOS 0.2.5?
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(...) a (...) Maybe, if you wanted to be really flash, when you get the (non-ultra) low battery warning, your robot could start seeking out the tower, and get ready to send the data. Maybe have a light near the tower that starts flashing when it (...) (23 years ago, 4-Aug-01, to lugnet.robotics.rcx.legos)
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| | Re: Rechargeable Batteries
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(...) I use NiMH and get a voltage between 7.8V freshly charged and 7V at the low end (i.e. slightly higher than NiCd). The lower voltage is not really a problem for me. The motors may be somewhat less powerful, but if you're just playing and not (...) (23 years ago, 4-Aug-01, to lugnet.robotics.rcx)
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| | Re: SubVI help screens
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Yes you can create your own help screens, make your own command icon, etc. This is explained in detail in the "Elevator" chapter (Chapter 19) of my book "Creative Projects with LEGO Mindstorms". You can create your own help menu by double-clicking (...) (23 years ago, 4-Aug-01, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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