 | | Re: Light sensor question
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(...) With obvious mappings, of course. (...) Put another way, at no point does the red LED on the light sensor light up, and I consistently read the same value from the light sensor, regardless of whether I set the mode to RAW or percent value. In (...) (23 years ago, 15-Jul-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Gutting an optical mouse - Part I
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Does anyone who knows more than me about these kinds of mice know if what is currently on pricewatch is the right thing; go to www.pricewatch.com, click on mice and then search for "optical". It comes up with a Mitsumi device for $9. Is this the (...) (23 years ago, 15-Jul-02, to lugnet.robotics)
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| | yet another question about lnp
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thanx to mark falco and albert huang for helping me out with lnp_init. But now i have another problem. if i execute lnp_addressing_write at approximately the same time as i recieve data on the serial port, lnp_addressing_write does not return.. the (...) (23 years ago, 15-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: whats up with lnp_init?
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(...) I ran into this when using the LNP library to emulate LNP in the RCX as part of emuLegOS (URL) emuLegOS contains a thread safe wrapper for the LNP library. It should be fairly simple to extract that code into your own library for use in non (...) (23 years ago, 15-Jul-02, to lugnet.robotics.rcx.legos)
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| | Light sensor question
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I want to expand the Scheme procedure (get-light-value <sym | num>) where <sym> is one of 'PORT1, 'PORT2, 'PORT3 and num is either 0, 1, or 2 to the FORTH code 128 <port> SENSOR_MODE <port> SENSOR_CLEAR <port> SENSOR_READ <port> SENSOR_VALUE So, if (...) (23 years ago, 15-Jul-02, to lugnet.robotics.rcx.pbforth)
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| | Connect the ADNS-2030 optical mouse sensor to the Handy Board
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(...) (23 years ago, 15-Jul-02, to lugnet.robotics.handyboard)
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| | Re: Question, opinion, help - Claw Hands
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Ok, here's what I came up with. It's a three finger claw deal, offshoot tech from the Super Mech-Bot. I like it. Dual z24 single Worm Gear drive in the center of the hand acuates the fingers. The Mechanical hinged fingers feature a multiplexed (...) (23 years ago, 15-Jul-02, to lugnet.build.mecha, lugnet.robotics)
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| | Re: whats up with lnp_init?
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"kenneth johansen" <kennethj@stud.cs.uit.no> wrote in message news:3D31CF01.37F981....uit.no... (...) Kenneth, I'm not sure if I remember correctly, but lnpd as it is right now might not fare so well with reentrant code (i.e. pthreads) because the (...) (23 years ago, 15-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: RCX to RCX communication
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"Luke Ma" <Luke_Ma@brown.edu> wrote in message news:Gz83nF.7D9@lugnet.com... (...) and (...) outputs. (...) eep. erm... we never posted RCX-RCX sample code up. never gave any of the students two bricks. and the LNP code up on our website has our own (...) (23 years ago, 15-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Alternative uploader for mindstorm running windows 2000 or linux?
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(...) Alternative to *what* for uploading *what* ? (...) Under Linux (and probably win2k too), you can use NQC. ---...--- Steve Baker ---...--- Mail : <sjbaker1@airmail.net> WorkMail: <sjbaker@link.com> URLs : (8 URLs) (23 years ago, 15-Jul-02, to lugnet.robotics)
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| | Re: Aborting from ISR
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(...) This should be : IsISRFree? 'UserISR ['] NoOp = ; of course. (23 years ago, 14-Jul-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Aborting from ISR
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(...) To remove your program from the UserISR just set 'UserISR to ['] NoOp - or even better: to the previously stored old value. (...) Yes, you just have to read the current value of 'UserISR. If no other program is hooked to the ISR this is the (...) (23 years ago, 14-Jul-02, to lugnet.robotics.rcx.pbforth)
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| | Running legOS under DJGPP Status
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With increase discussion about running legOS under DJGPP I started investigating this process. The following is a status report of where I am and the steps I took to get there. Beware that I have jumped around some, left some tasks unfinished, and (...) (23 years ago, 14-Jul-02, to lugnet.robotics.rcx.legos)
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| | whats up with lnp_init?
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i have 2 threads (pthreads), 1 that sends and 1 that recieves on my PC. both of these runs in while(1) sentences. so.. i thought lnp_init was to be run only once, but unless i run the lnp_init routine each time i want to send a message nothing get (...) (23 years ago, 14-Jul-02, to lugnet.robotics.rcx.legos)
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| | Alternative uploader for mindstorm running windows 2000 or linux?
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well thats my qestion running around on the web didn't gave anything just like to know. Best regards Marcel (23 years ago, 13-Jul-02, to lugnet.robotics)
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| | Aborting from ISR
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Hi, Is there any way of ABORTing the current program from the ISR ? I want to attach a routine to 'UserISR and have it ABORT and then execute POWER_OFF when the off/on button is pressed. I would also like to know whether a user program or the idle (...) (23 years ago, 14-Jul-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Rechargeable batteries and the RCX
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In article (...) Depends. Rechargeable alkaline have a higher nominal voltage, but also higher internal resistance than NiMH. Under light load the alkalines will provide a higher voltage for a longer period of time. Under heavy load, they provide (...) (23 years ago, 14-Jul-02, to lugnet.robotics)
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| | Re: Rechargeable batteries and the RCX
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(...) NiCd batteries are cheap, but that's about the only advantage to them. I'd suggest either NiMH or rechargeable alkaline depending on your usage habits. I actually use both types of batteries, but I probably won't bother replacing the (...) (23 years ago, 14-Jul-02, to lugnet.robotics)
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| | Re: Rechargeable batteries and the RCX
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(...) Well, all Alkaline batteries (rechargeable or not) do this if left in equipment in a discharged state. Both NiMH and rechargeable alkalines have a limited life and have to be discarded sooner or later. Some of the older ones claimed to be good (...) (23 years ago, 15-Jul-02, to lugnet.robotics)
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| | Re: Rechargeable batteries and the RCX
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Thanks to all that responded to my questions regarding batteries. I was concerned about a post I read in rec.toys.lego in which someone reported problems after switching to alkaline rechargeable batteries (the post can be seen at the following URL): (...) (23 years ago, 14-Jul-02, to lugnet.robotics)
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