 | | Re: Varying the output voltage?
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(...) you're right, I forgot float. Thanks for clearing the rest up for me :-) Doesn't the motor itself have a "load" when it works with no actual load? "which reduces power but not speed" Timothy (21 years ago, 15-Jun-03, to lugnet.robotics.rcx.legos)
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| | Re: OS X Complier problems solved--now struggling with BrickOS
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(...) Hi, First, in terms of my compiler build (referencing your previous post...) what I had a problem with was building the sample C++ code that came with BrickOS. I don't need C++ so I haven't investigated this any further. You're free to try my (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
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| | Re: Varying the output voltage?
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This is what I noticed, comparing the two systems with BrickOS One thing that I noticed was at the lower voltages the needle on my multimeter wavered around a little and it tended to steady at the higher power levels All of the readings were taken (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
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| | OS X Complier problems solved--now struggling with BrickOS
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Ok, you can (perhaps--I haven't been able to test it yet) ignore my previous post. I was trying to build the cross compiler using GCC 3.3, and nothing I tried would work. When I switched to 3.2.3, the errors disappeared. So I'm making the temporary (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
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| | Cross Compiler for the Mac Os X
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Has anyone had any luck creating a cross complier for the Mac? I've downloaded Michael Zapp's, but he said it wasn't working for C++. I've been trying to compile my own, but I keep getting errors. Any suggestions or pointers would be greatly (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
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| | Re: Varying the output voltage?
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(...) Actually there are four, sort of, as for 0 there are float (contacts separated, infinite resistance) and brake (contacts shorted, zero resistance). The standard firmware switches rapidly between on and float (each cycle takes 8ms), which (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
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| | Re: Varying the output voltage?
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(...) The eight different power level pulsing is called "PWM", translation=Pulse width modulation. PWM is the way a digital chip cheats/mimics true analog without a D/A convertor. Since the only output of a digital chip is on or off, there is no (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
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| | Varying the output voltage?
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I was wondering if it was possible to control the speed/torque of the motor by varying the output voltage in brickOS. It seems that the speed parameter on the motors only changes the rate at which they pulse on and off. I am looking for something (...) (21 years ago, 14-Jun-03, to lugnet.robotics.rcx.legos)
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| | Communication between RCX
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Hello there, I've wrote a little library who permit you to communicate with RCX easily All information is in the package (URL) (21 years ago, 13-Jun-03, to lugnet.robotics.rcx.legos)
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| | BrickOS Talking to Robolab?
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Has anyone used BrickOS to talk to Robolab? I really like the Robolab visualization tools and it would be a shame to not be able to fool Robolab into to talking to the BrickOS firmware. I am in the process of designing a simple Fuzzy controller and (...) (21 years ago, 11-Jun-03, to lugnet.robotics.rcx.legos)
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| | Re: DCC for the RCX
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(Sorry, did FUT to .legos, but didn't post to it. I'm such a newbie!) (...) (21 years ago, 10-Jun-03, to lugnet.robotics.rcx.legos)
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| | Re: DCC for the RCX
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Hi Ralph, I should be able to extract the source for the low level driver routines this week. If anyone else is interested, please email me. Note for BrickOS users: it's not simply a matter of plonking the routines into a program. The kernel will (...) (21 years ago, 9-Jun-03, to lugnet.robotics.rcx, lugnet.trains, lugnet.robotics.rcx.legos)
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| | Re: brickos-0.2.6.10 error
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Scott, You need to put a .depend file and Makefile inside the directory you are compiling the programs in. Just create a file with the extenstion .depend and put it into your programs directory. There dosn't need to be anything in the file. When you (...) (21 years ago, 3-Jun-03, to lugnet.robotics.rcx.legos)
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| | brickos-0.2.6.10 error
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I get this when ever I try to compile a program. Scott Davis@Scott ~ $ cd /brickos/programs Scott Davis@Scott /brickos/programs $ dir Makefile motor.c Scott Davis@Scott /brickos/programs $ make motor.lx Makefile:51: .depend: No such file or (...) (21 years ago, 2-Jun-03, to lugnet.robotics.rcx.legos)
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| | Re: PC to RCX communication
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You may check out javastorms at www.javastroms.org. The project seem to be abandoned, but the code is available. Basically it does what you aim for so it should be a good starting point. I have used the code as base for some of my own projects and (...) (22 years ago, 26-May-03, to lugnet.robotics.rcx.legos)
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| | Re: PC to RCX communication
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This Thread could probably answer more :) (URL) this helps "Shehryar Shaheen" <shehryar.shaheen@ul.ie> wrote in message news:HFD5yE.1pxM@lugnet.com... (...) a (...) java.comm (...) (22 years ago, 23-May-03, to lugnet.robotics.rcx.legos)
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| | Re: PC to RCX communication
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It's been a while since I last played with LNP but I can recall that it works well under Linux. The LNP deamon must be running on the PC before the RCX and the PC can communicate. I think with windows you still need the LNP deamon running under (...) (22 years ago, 23-May-03, to lugnet.robotics.rcx.legos)
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| | PC to RCX communication
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I'm working a project to communicate from a PC to an RCX running the current version of BrickOS-0.2.6.10. I'm running windows 2000 professional and I use the current version of Cygwin. The idea behind the project is to create a Java application that (...) (22 years ago, 23-May-03, to lugnet.robotics.rcx.legos)
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| | BricxCC release 3.3.7.5
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Version 3.3.7.5 fixes two bugs with the copy to clipboard function on the Analysis graph. It fixes the Clear Memory function so that it now clears all five program slots (it used to leave slot 1 untouched). It fixes form and component size issues (...) (22 years ago, 22-May-03, to lugnet.robotics.rcx.nqc, lugnet.robotics.rcx.legos, lugnet.robotics.rcx)
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| | Re: USB on winXP/2k problem: cannot download
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(...) Dear all, Sorry. I made a mistake. I had installed 2.5 instead of 2.6.10 of brickos. Now it works fine. Many thanks, G. (22 years ago, 22-May-03, to lugnet.robotics.rcx.legos)
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