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 | | Re: Micro-Switches, Mux
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| "Stef Mientki" <s.mientki@ids.kun.nl> wrote in message news:3A9C14C9.76834B....kun.nl... (...) Nice work. I've found the contact resistance of the LEGO switches vary so much you can't get a 4 way mux to work reliably. With real micro switches I'm (...) (25 years ago, 28-Feb-01, to lugnet.robotics.rcx)
| | | | | Re: Micro-Switches, Mux
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| "Stef Mientki" <s.mientki@ids.kun.nl> wrote in message news:3A9C14C9.76834B....kun.nl... (...) (URL) job Stef, that's a really helpful page. I built a version of TFMs mux ((URL) a while ago but I used resistor values that are not ideal (10k, 20k, (...) (25 years ago, 28-Feb-01, to lugnet.robotics.rcx)
| | | | | RIS SDK - Comments and questions
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| I have just started to try this - is it ever cool. I notice that the Brick options are RCX, Scout and MicroScout - Does this mean that I can program the MicroScout using the RIS Tower ? - If so, do I use LASM ? - I assume that I put it in P-mode ... (...) (25 years ago, 28-Feb-01, to lugnet.robotics, lugnet.robotics.rcx)
| | | | | Re: Micro-Switches, Mux
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| There was some doubt in another newsgroup (lugnet.robotics) about my suggestions, so I've made an overview, with drawings om my website (it has also some more pratical values of the resistors), (...) met vriendelijke groet, (25 years ago, 27-Feb-01, to lugnet.robotics.rcx)
| | | | | Re: Micro-Switches, Mux
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| Knowing the resistor inside the RCX is 10 kOhm, you should use a different resistor for each switch, the first resistor should be 10 kOhm, the second 30 kOhm, third 70 kOhm, fourth 150 kOhm, this will divide the 5V range in nearly evenly spaced (...) (25 years ago, 26-Feb-01, to lugnet.robotics.rcx)
| | | | | Micro-Switches, Mux
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| Hi, has anyone had any joy combining the input from several micro-switches into one RCX input, I've built a simple multiplexor for three lego touch sensors, but now I need four!! .. I know this can be done by adjusting my current design, except I (...) (25 years ago, 26-Feb-01, to lugnet.robotics.rcx)
| | | | | Re: About IR Tower
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| No matter if your tower is connected before booting, it's not a PnP device ! What's more, a serial port can safely be added/removed because it's just a text device. On Linux, you can easily test your IR tower : echo 'RCX please show me a sign' (...) (25 years ago, 23-Feb-01, to lugnet.robotics.rcx)
| | | | | Re: 2 new robots
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| Hi Mario, Look at this new one : (URL) uses use a differential, suspension,... and is a bit larger. Anyway, its a prototype, but works fine. Christophe (...) (25 years ago, 24-Feb-01, to lugnet.robotics.rcx)
| | | | | Re: My RCX doesn't work!
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| (...) I suppose the obvious question is: Have you checked the batteries in both the RCS and the IR tower? And I do mean have you CHECKED the batteries - never assume that a "new" battery right out of the package hasn't been sitting on a store shelf (...) (25 years ago, 24-Feb-01, to lugnet.robotics.rcx)
| | | | | Re: About IR Tower
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| The tower must be connected before you boot the computer. Have you tried using the other COM port? If your mouse is using the other port, swap it and try the tower in that port. Remember to reboot. If all else fails, you need a friend to loan you a (...) (25 years ago, 23-Feb-01, to lugnet.robotics.rcx)
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