 | | Lego RCX Emulator
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Hello, In this mail I want to advertise my Lego emulator, again. This emulates a Lego RCX brick on hardware level, so it should run any firmware you like. You can find it at this URL: (URL) can emulate multiple RCXes communicating via infrared and (...) (21 years ago, 29-Sep-03, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: Proximity Sensors for Legway
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Hi Chris :) Hitechnic have just changed their webpage marking the EOPD's as withdrawn and to explain that they do not have the time to share their schematics with the kind of profesionalism they desire. Which is a pity, cause I'm gratefull for any (...) (21 years ago, 23-Sep-03, to lugnet.robotics.rcx)
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| | Re: Proximity Sensors for Legway
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Thanks Chris I had seen Henriks posts before but for some reason forgot all about it (I suspect an irrational Java aversion) I think the fact that Steve has published his code makes his solution more attractive to those of us who would like to try (...) (21 years ago, 23-Sep-03, to lugnet.robotics.rcx)
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| | Re: Proximity Sensors for Legway
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(...) Henrik Dahlgren posted here several months back saying that he had successfully built a LegWay using standard LEGO Light Sensors instead of the HiTechnic Proximity Detector. I don't know how much code modification was required, but here is his (...) (21 years ago, 22-Sep-03, to lugnet.robotics.rcx)
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| | Re: Multiplexing 4 touch sensors on an RCX input port
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(...) (apologies for delay - my server decided to stop talking to lugnet for some reason, hopefully now fixed) (...) Errm, probably 2.1.0 (but I don't have it immediately to hand at the moment - that's the name of the directory on my computer with (...) (21 years ago, 18-Sep-03, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth)
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| | Re: Proximity Sensors for Legway
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Now Hi-Technic stop building those parts.. may be they could give their diagrams to public... Chris. (21 years ago, 18-Sep-03, to lugnet.robotics.rcx)
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| | Proximity Sensors for Legway
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Hi I'm keen on building a Legway but Hitechnic tell me they no longer supply the sensors.... (or I maybe they don't want to supply me in New Zealand) Are there alternatives? either pre built or a circuit daigram? I don't have any electronics (...) (21 years ago, 18-Sep-03, to lugnet.robotics.rcx)
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| | Re: Low level programming of the RCX
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(...) Take a look at the H8/3297 Hardware Manual: (URL) chance Jürgen (21 years ago, 13-Sep-03, to lugnet.robotics.rcx)
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| | Re: what is the RCX bios?
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(...) It's a 16K hard-coded driver. It manages the permanent features of the RCX. From (URL) this page>: High level notes As expected, the ROM contains low-level routines for driving the RCX It controls the on/off/stall signals sent to the motor (...) (21 years ago, 13-Sep-03, to lugnet.robotics.rcx, FTX)
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| | what is the RCX bios?
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And what does it actually do? I mean the small rom inside the RCX... (21 years ago, 13-Sep-03, to lugnet.robotics.rcx)
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| | Re: Low level programming of the RCX
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(...) If you're really really hard core you could code in machine code (hex :^) Kevin (21 years ago, 12-Sep-03, to lugnet.robotics.rcx, FTX)
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| | Re: Low level programming of the RCX
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(...) If you're really hard-core, you could program it in assembly language. I believe the official SDK lists all the operations. Get it (URL) here> if you don't already have it. (21 years ago, 12-Sep-03, to lugnet.robotics.rcx, FTX)
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| | Re: Low level programming of the RCX
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(...) Speaking of Quite C, I am working on figuring out a good way to integrate Quite C into the BricxCC system. It is a bit different from the other languages BricxCC supports in that you compile to an SREC and download it as a new firmware rather (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx)
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| | Re: Low level programming of the RCX
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(...) [snip] (...) [snip] I'll second that. The BrickOS source code provides a good example of using the FRC as well as other low-level I/O. Between that source and the H8 manuals, you should be set. If you have specific questions, there are quite a (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx)
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| | Re: Low level programming of the RCX
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(...) Quite C is your best place to start with a language. C can give you direct access to the timer. The timer is considered an I/O device, but all I/O on the H8 is memory mapped. Having said that, if you know the address of the timer, you can (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx)
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| | Low level programming of the RCX
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Hello everybody, I try to program the RCX at low level. I want to be able to program using the Hitachi h8/3292 directly. For example, I want to use the free-running timer, define own interrupt handlers and so on. In fact, I *really* need to control (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx)
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| | Re: Multiplexing 4 touch sensors on an RCX input port
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(...) I've made one. A wall follower. I set the sensor to raw mode and looked at three ranges. It tried to stay in the middle range, which for this 'bot meant lightly touching the wall. The wall follower had a bumper analogous to a highly curved (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx)
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| | Touch Sensor resistance versus button displacement
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Here is a chart showing the variation of contact resistance of several touch sensors while pressing button very progressively. (URL) There are huge differences between various sensor Lightly pressed touch sensors have contact resistance in the 2 to (...) (21 years ago, 11-Sep-03, to lugnet.robotics.rcx, FTX)
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| | Re: Multiplexing 4 touch sensors on an RCX input port
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"Steve Hassenplug" <Hassenplug@mail.com> wrote: [snip] (...) This has always annoyed me about the Lego touch sensors. Has anyone ever made or seen a contraption that uses the variable pressure sensitivity of the Lego touch sensors? Tim (21 years ago, 11-Sep-03, to lugnet.robotics.rcx)
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| | USB tower fast firmware download
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Thanks to Dick Swan's help I have managed to get BricxCC downloading firmware in fast mode with the USB tower. All it took was using long enough timeout values (I'm currently using the tower default timeout settings when downloading firmware), (...) (21 years ago, 11-Sep-03, to lugnet.robotics.rcx)
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