 | | Re: problem with control speed using NQC
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The RCX uses pulse-width modulation to control power to the motor. The pulses are between 1ms and 8ms of power during an 8ms interval. In theory, this would result in different power being provided to the motor. The problem is that the motor has an (...) (25 years ago, 22-Jul-99, to lugnet.robotics.rcx.nqc)
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| | Re: rcxhttpd?
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(...) LOL! I like it! (...) [other protocols snipped] (...) Yes I am! Now, to convince the department that we _really_ need 1000 more Mindstorm kits as a fall-back for e-mail in case the net goes down. ;) jack (envisioning a building full of roving (...) (25 years ago, 21-Jul-99, to lugnet.robotics.rcx)
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| | Re: problem with control speed using NQC
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I think that output power effects the modulation of the motor power. The motor power cycles on and off with the off time being longer at lower power settings. As David stated, this results in the same speed of the motor when it is unloaded for all (...) (25 years ago, 21-Jul-99, to lugnet.robotics.rcx.nqc)
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| | Re: problem with control speed using NQC
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I've had the same result. It seems an **unloaded** motor always runs at full speed. To explain it to myself, I've theorized that the 'p' (power) in Fwd() and OutputPower() is more akin to force and does not directly control velocity. Waiting for (...) (25 years ago, 21-Jul-99, to lugnet.robotics.rcx.nqc)
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| | Re: emulegOS: a new release
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Just a note about a small bug. The supplied sample program ir-rover.cpp doesn't work on the real RCX. I think this may be due to IR complications under legOs. I'm working on a version which will work on both the emulator and the real system and will (...) (25 years ago, 21-Jul-99, to lugnet.robotics.rcx.legos)
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| | emulegOS: a new release
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Mark Falco improved his Tcl/Tk version of emulegOS with tons of cool features. This version is now considered the "official" version of emulegOS, and we hope to release a Tcl based Windows version soon. The new features include: - IR support: (...) (25 years ago, 21-Jul-99, to lugnet.robotics.rcx.legos)
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| | Re: Rotation sensors?
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(...) [snip...] If you want to have more info about the sotry of this problem search this newsgruop for "rotation sensor bug found". Mario (URL) (25 years ago, 21-Jul-99, to lugnet.robotics.rcx.legos)
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| | problem with control speed using NQC
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Okay, need some more help. I have the following code running. My expectation is that the speed of the motor would increase but the integer value in the 'Fwd' command doesn't seem to make any difference. The motor always runs at full speed. (...) (25 years ago, 21-Jul-99, to lugnet.robotics.rcx.nqc)
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| | Re: rcxhttpd?
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I don't think my first post succeeded, so here it is again. Sorry if you've already seen this. (...) wander around the house until it finds another 'bot. Then it would relay the message to that 'bot. This second 'bot could wander around until (...) (25 years ago, 21-Jul-99, to lugnet.robotics.rcx)
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| | Re: Rotation sensors?
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Yep, others have reported having these problems. Here's a fix I came up with, but has also only been tested on my system. There have been reports that the existing code works for some, and not for others, so you may need to customize this. just (...) (25 years ago, 20-Jul-99, to lugnet.robotics.rcx.legos)
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| | Rotation sensors?
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Hello, Rotation sensors appear to be broken in the 990330 snapshot. Here's part of the code I'm using: ds_active(&SENSOR_3); ds_rotation_on(&SENSOR_3); ds_rotation_set(&SENSOR_3, 0); while (!PRESSED(button_state(), BUTTON_VIEW)) { (...) (25 years ago, 20-Jul-99, to lugnet.robotics.rcx.legos)
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| | RE: Couple of questions about the Mindstorms software
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<Silly fly thread snipped...it WAS funny though> (...) Well, pbFORTH DOES have the ability to emit arbitrary bytes by the use of the EMIT word. And it has the ability to receive arbitrary bytes since that's how the terminal program talks to it. It's (...) (25 years ago, 20-Jul-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Re: Barcode Reader on LegOS page
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Here is alex's webpage taken from the Legos page: (...) (25 years ago, 20-Jul-99, to lugnet.robotics.rcx.legos)
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| | Re: Couple of questions about the Mindstorms software
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(...) LOL! BTW, speaking of viruses (in the good sense) and on-the-fly bytecode compiling, do any of the RCX packages currently support the spontaneous exchange of high-level code between two or more RCX bricks? It seems like it would almost be a (...) (25 years ago, 19-Jul-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Re: Help request regarding alternative programming systems
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(...) Check out Dave Baum's NQC (Not Quite C). This is your best bet, IMHO. NQC doesn't get around the significant limitations of the RCX firmware, but it should easily be able to handle the application that you describe. (URL) you are running a (...) (25 years ago, 19-Jul-99, to lugnet.robotics.rcx, lugnet.trains)
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| | Help request regarding alternative programming systems
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Allow me to request a little help from all the rcx experts out there. I've purchased Mindstorms set and the infrared remote control. As near as I can tell, I can not do what I want with the mindstorms software, so I'm hoping one of the alternative (...) (25 years ago, 19-Jul-99, to lugnet.robotics.rcx, lugnet.trains)
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| | Re: Barcode Reader on LegOS page
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What is Alex's page? (25 years ago, 19-Jul-99, to lugnet.robotics.rcx.legos)
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| | Re: rcxhttpd?
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(...) Since the RCX has essentially a serial interface to the outside world, you would need to encode and decode the HTTP requests and responses into a serial-based protocol. If you actually wanted the RCX to be plug-and-play compatible with (...) (25 years ago, 19-Jul-99, to lugnet.robotics.rcx)
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| | Re: rcxhttpd?
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(...) Don't forget 'finger'. There's already provisions for vending machines, so it's not much of a stretch. :) (25 years ago, 17-Jul-99, to lugnet.robotics.rcx)
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| | rcxhttpd?
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(OK, I know this sounds perverse, but heck, some high-end printers these days are coming with built-in webservers for configuration, so it's not that perverse.) Has anyone written an HTTP daemon for the RCX? I mean a scaled-down version of httpd (...) (25 years ago, 17-Jul-99, to lugnet.robotics.rcx)
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