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 | | Re: To all sensor developers, why use voltage drive ?
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| (...) Do you actually have a schematic of the RCX? Matthias Jetleb VA3-MWJ (25 years ago, 2-Mar-01, to lugnet.robotics.rcx)
| | | | | To all sensor developers, why use voltage drive ?
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| Hi, Why is everyone using a voltage driven cirquit when devolping a RCX sensor-cirquit, while the RCX sense input is in fact a current sensing input ? Ok, I admit, until short I also copied the schematic everyone is using. But I now think the (...) (25 years ago, 2-Mar-01, to lugnet.robotics.rcx)
| | | | | Re: 3 Sharps at one Input
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| Stef Mientki <s.mientki@ids.kun.nl> wrote in message news:3A9F8C46.1B4C03....kun.nl... (...) purposes", based on (...) by which you can (...) reading some RCX (...) design and test (...) I'll plan to improve (...) values) You can just hook pots and (...) (25 years ago, 2-Mar-01, to lugnet.robotics.rcx)
| | | | | Re: 3 Sharps at one Input
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| Hi Rainer, Very nice job ! You inspired me to build a kind of "general remote control box for test purposes", based on the time-multiplexed switch encoder. The (rough and wild) idea is to make a box with 3 potmeters, 4 switches, by which you can (...) (25 years ago, 2-Mar-01, to lugnet.robotics.rcx)
| | | | | 3 Sharps at one Input
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| Hi All, if interested, you can have a look at my project at (2 URLs) if you want to chose between german or english) Rainer (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... (...) 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)
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