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 Robotics / RCX / *6840 (-20)
  remote program activation
 
Does anyone of you know, whether it is possible (with a special byte sequence for example) to send a command to the running LeJOS JVM on the RCX which tells it to run a certain uploaded program? Or, if not, is it maybe possible to call a program x (...) (22 years ago, 25-Sep-02, to lugnet.robotics.rcx.java)
 
  Re: Automatic RCX Battery Recharging
 
(...) Well I may sound boring, but with reflex loading they don't get hot ! Stef Mientki (...) (22 years ago, 24-Sep-02, to lugnet.robotics.rcx)
 
  Re: Automatic RCX Battery Recharging
 
In order to protect the RCX from any type of power problems, would it make sense to disconect the RCX from the batteries first and have it run from an alternate power supply? or would this make it too complicated? I know little about electronics, is (...) (22 years ago, 24-Sep-02, to lugnet.robotics.rcx)
 
  Re: Automatic RCX Battery Recharging
 
In lugnet.robotics.rcx, Brian Bagnall writes: <snip> Are you are talking about chagring batteries while they are in the RCX? If so, what about the heat. When the NiMh batteries are chargin in a wall-wart charger they get quite warm, wouldn't you be (...) (22 years ago, 24-Sep-02, to lugnet.robotics.rcx)
 
  Re: Automatic RCX Battery Recharging
 
(...) For you and me, that's simple... but even procurement of parts other than plain vanilla ones may be a nightmare for someone who isn't more or less in the electronics business (At least it is here in France) (...) Thanks for the pointer. (...) (...) (22 years ago, 24-Sep-02, to lugnet.robotics.rcx)
 
  Re: Automatic RCX Battery Recharging
 
(...) that's true, (if you think 1 8-pins IC + 1 Mosfet is not simple) (...) Good question, I never asked my self. But it seems no problem at all, I've very bad contacts, (you can even hear and or see them sometimes when the charge process is going (...) (22 years ago, 23-Sep-02, to lugnet.robotics.rcx)
 
  Re: Automatic RCX Battery Recharging
 
I agree that there are much faster charging methods, but the slow one has the advantage of simplicity (this was implied in the original question)... I wonder too how to design a connector with contacts that reliably carry 4 to 10 A currents and (...) (22 years ago, 23-Sep-02, to lugnet.robotics.rcx)
 
  Re: Automatic RCX Battery Recharging
 
(...) Yes Brian, and read my P.S. ;-) (...) This is not necessairly true. If you use the right charge method, load time less then 15 minutes, without degrading the batteries (even with positiv effect on the lifetime/capacity) is very well possible (...) (22 years ago, 23-Sep-02, to lugnet.robotics.rcx)
 
  Automatic RCX Battery Recharging
 
Some of us on the leJOS mailing list were discussing auto-battery recharging with the RCX. Here's some technical thoughts from Philipe Hurbain that might be useful to others. p.s. If anyone has anything to add to this please do. -*-*-*-*-*- I think (...) (22 years ago, 23-Sep-02, to lugnet.robotics.rcx)
 
  Re: VPBRICK
 
(...) This should work: SetEvent(My_Event, Message(), EVENT_TYPE_MESSAGE); Dave (22 years ago, 20-Sep-02, to lugnet.robotics.rcx.nqc)
 
  How much current from RCX ports
 
I see around here, people are playing around with diffrent types of things to put on the RCX output port. Like not orginal lights, motors, bells and so on. Some even puts several motors on one port. How much current can you drain from one RCX port? (...) (22 years ago, 19-Sep-02, to lugnet.robotics.rcx)
 
  Re: RCX bell like sound
 
did you try Guido Truffelli's BMS, (URL) Mientki (...) (22 years ago, 19-Sep-02, to lugnet.robotics.rcx)
 
  Re: RCX bell like sound
 
"Michel Magnan" <m_magnan@cablerocket.com> wrote in message news:H2n7G8.Azo@lugnet.com... (...) heard (...) I tried that too. You'll NEVER hear it in a show. NEVER. Your best bet is to use the last motor port for a small bell. You can either use a (...) (22 years ago, 18-Sep-02, to lugnet.robotics.rcx)
 
  RCX bell like sound
 
Hello, Is there a way to make the RCX make the sound of ringing bell, such as heard at a level train crossing? If you could point me in the right direction, that would be appreciated. Thanks Michel Magnan (22 years ago, 18-Sep-02, to lugnet.robotics.rcx)
 
  VPBRICK
 
Hello! I have some questions: - (in the RCX side) How i can configure a message Event in NQC, I don't know the second parameter? SetEvent(My_Event,??..._Message); - (in the PC side to get the messages from the RCX), anybody have a sample code to use (...) (22 years ago, 18-Sep-02, to lugnet.robotics.rcx.nqc)
 
  Re: How to setup gcc and make in cygwin
 
I had a go at those instructions then gave up after 3 weeks of trying to get them to work. "Ed Manlove" <emanlove@ieee.org> wrote in message news:H2JupE.J4w@lugnet.com... (...) most (...) no (...) for (...) my (...) (22 years ago, 16-Sep-02, to lugnet.robotics.rcx.legos)
 
  Re: How to setup gcc and make in cygwin
 
Actually there is a set of updated instructions for Windows with the most recent being for brickOS. brickOS is the continued development effort foe legOS. AT the request of The LEGO Group the name has changed. So the most recent information can be (...) (22 years ago, 16-Sep-02, to lugnet.robotics.rcx.legos)
 
  Re: RCX simulator ?
 
(...) Yes, to give you even a better idea, I made a page with some of the ideas (and pictures ofcourse), see (URL) Mientki (22 years ago, 16-Sep-02, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
 
  Re: RCX <-> PC communication
 
(...) Kaspar, There is a bug with serial towers with RCXPort in lejos 2.0. This causes the problem you are seeing. There is a fixed version in (URL) fixes RCXPort, but I haven't put the fix in the LNP versions yet. I only have a USB Tower, and (...) (22 years ago, 16-Sep-02, to lugnet.robotics.rcx.java)
 
  Re: Pass by reference
 
Ralph, The second parameter to the task is a pointer to an array of pointers. Those pointers (under DOS and other OSes) normally point to parameters on the command line (string data). However, there is no reason to not use them for other data types. (...) (22 years ago, 16-Sep-02, to lugnet.robotics.rcx.legos)


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