 | | Re: Process Control with RCX
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Having to trouble shoot a Dell Inspiron 1100 not booting up cleanly. An alarm goes off and it goes to safe boot mode. I am running the original Home version of XP without updates and RoboLab 2.94. Keeping the 2007 working original program until new (...) (7 years ago, 15-Mar-17, to lugnet.robotics.rcx)
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| | Re: Process Control with RCX
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Here is the twenty foot long process on the main RCX for the printer. https://www.dropbox....X.jpg?dl=0 I wanted to use sub routines and loop the process so the program could look elegant but never got it to work. Here each color has it's own put (...) (7 years ago, 20-Feb-17, to lugnet.robotics.rcx)
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| | Process Control with RCX
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I am back on the Lego wagon, making another painting machine. Looking forward to creating the best practices program with your advising. (7 years ago, 9-Jan-17, to lugnet.robotics.rcx)
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| | Re: Faster Firmware/Motor Control
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(...) D'oh... I'm posting this because I'm sure I'm not the only one who missed this: I didn't realize there's a drop-down when BricxCC starts up, to select "Swan" instead of "RCX" when making the first handshake with the brick. After doing that, it (...) (12 years ago, 19-Jul-12, to lugnet.robotics.rcx)
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| | Re: Faster Firmware/Motor Control
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(...) (snip) (...) BrixCC doesn't recognize "wait1Msec", and when I try to download a program with it, it just gives me an error. That's kind of what I was getting at with the motor power stuff; I can tell the RCX can handle more motor powers, but (...) (12 years ago, 18-Jul-12, to lugnet.robotics.rcx)
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| | Re: Faster Firmware/Motor Control
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(...) Thanks for the link! (...) The documentation on this page (URL) mentions the following: "new wait1Msec opcode to perform program waits using one millisecond resolution" Maybe that is what you are looking for. (12 years ago, 18-Jul-12, to lugnet.robotics.rcx)
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| | Re: Faster Firmware/Motor Control
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(...) Hi Dave, Thanks - I tried to send you a note, but your email bounced... I found this site: (URL) downloading the 100x firmware, I can tell that it is a different firmware (different clock, tone on button press is different, etc.) - however, it (...) (12 years ago, 18-Jul-12, to lugnet.robotics.rcx)
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| | Re: Faster Firmware/Motor Control
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(...) I have it and use it exclusively. i'll mail you a copy when i get your e-mail sddess Take care, Dave K (...) (12 years ago, 17-Jul-12, to lugnet.robotics.rcx)
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| | Faster Firmware/Motor Control
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Hi all, One of the common ways I like to control the speed of a gearmotor (in NQC) is by introducing a loop, for example, like this: while(true) { OnFwd(motor); Wait(a); Off(motor); Wait(b); } I often do this as a motor approaches a setpoint (say an (...) (12 years ago, 17-Jul-12, to lugnet.robotics.rcx)
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| | Re: BrickOS Patches and Development
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(...) Excellent, Matthew. Many thanks for keeping the project alive and moving forward. I've uploaded a little patch with the edge counting (which I needed once upon a time when I tried to build a plotter without any rotation sensors) re-implemented (...) (12 years ago, 17-May-12, to lugnet.robotics.rcx.legos)
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| | Re: NQC and RCXCC
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(...) Never mind I got it now! It's a 2 step process. 1) Use the instructions you provided to set the "variable" in Windows XP. !!!RESTART THE COMPUTER!!!! !!!RESTART THE COMPUTER!!!! 2) When you start BrixCC select RCX2 from the drop-down list. (...) (12 years ago, 1-Feb-12, to lugnet.robotics.rcx.nqc)
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| | Re: NQC and RCXCC
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<<snip>> (...) Thanks ROSCO I did that and it does work when I am using the "command line" of NQC. When I do either: nqc -Trcx2 -d counter.nqc or nqc -d counter.nqc However in BricxCC when I hit compile I get an error saying Undefined function (...) (12 years ago, 1-Feb-12, to lugnet.robotics.rcx.nqc)
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| | Re: NQC and RCXCC
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(...) Hi Ahui, You can set environment variables on XP by going to Control Panel / System, click Advanced tab, and click "Environment Variables" near the bottom. You can add it to either system variables (available to all users) or just for the user (...) (12 years ago, 1-Feb-12, to lugnet.robotics.rcx.nqc)
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| | Re: SetUserDisplay?
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(...) ???? Still a bit confused on this? I am running WinXP and not sure where to use the SET command? Opening up a DOS windows via CMD does show that I have this: NQC_OPTIONS=-Trcx2 along with a lot of other windows variables but when I go and (...) (12 years ago, 1-Feb-12, to lugnet.robotics.rcx.nqc)
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| | Re: NQC and RCXCC
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(...) he,he,he... I'm going to bring back a 12 year old thread. I'm using Windows XP and cannot figure out how to set the NQC_OPTIONS=-Trcx2 option. Any idea? -Ahui (12 years ago, 1-Feb-12, to lugnet.robotics.rcx.nqc)
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| | Re: Controlling an Electromagnet (LSM)
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(...) Or... avoid both stock relays and chip-based switching. For a linear motor you want to trigger each electromagnet in a series, you ideally you might like a "push-pull" system, where you aren't just turning a magnet on and off, but reversing (...) (12 years ago, 31-Dec-11, to lugnet.robotics.rcx)
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| | Re: Controlling an Electromagnet (LSM)
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Iain, How much power do you want for the electromagnets, and how rapidly do you need to switch them on and off? Old-fashioned relays will give you the least power loss, but can't be switched very quickly. They also have a limited life (between 10 (...) (12 years ago, 24-Dec-11, to lugnet.robotics.rcx)
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| | Controlling an Electromagnet (LSM)
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Hi all, It's been a while! A long while ago, while in elementary school, I used LEGO to build a manually-operated Linear Synchronous Motor (LSM) for a science fair project. I want to revisit this as an adult and built a full test track with a couple (...) (12 years ago, 24-Dec-11, to lugnet.robotics.rcx)
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| | Re: BrickOS Patches and Development
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The Bibo Patch Rollup Collection posted to SourceForge at (URL) been updated. New for this update are patches 43 and 44 43: Per the report from SourceForge user bollinge, Cygwin no longer has a problem building printf.c. A Cygwin-specific (...) (12 years ago, 15-Nov-11, to lugnet.robotics.rcx.legos)
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| | Re: MacNQC 4.05b, RCX 1.0 and OS X 10.4.6 can't program the brick
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(...) Funny I'm tripping over this just today... (...) The most weird thing happened to me today on my iMac - I've only dug out the old Mindstorms stuff last weekend and went through reviving cybermaster and Spybotics - and guess what, the RCX and (...) (13 years ago, 10-Mar-11, to lugnet.robotics.rcx.nqc)
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