 | | Re: Lego IR serial tower!
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Hi! Agnus, I'm really sorry for my previous mail without acknowledge you! Where do you live? in US? How much do you want to sell your IR serial tower? is it in a good condition? Are you using JavaAPI or anything else to control mindstorms robot as (...) (23 years ago, 6-Jul-02, to lugnet.robotics.rcx)
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| | Re: Lego IR serial tower!
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Hi! Thanks for Maggie first! Second, Where do you live? in US? How much do you want to sell your IR serial tower, is it in a good condition. Have you used JavaAPI or anything else to control it, are you working on windows9x enviroment, I 'd like to (...) (23 years ago, 5-Jul-02, to lugnet.robotics.rcx)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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I'm not sure I follow you here. If you're talking about switching inputs using an output (lower the 'speed' of port A to change the relay controlling the input for port 1) well, then Yes, it can be done. However, the problem suggested below comes (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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could not the voltage level deside what relays should be turned on for instance on port 1? Now it might go wrong if the battery turns to be bad. ----- Original Message ----- From: "Steve Hassenplug" <hassenplug@mail.com> To: (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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My major problem was having a light sensor on each RCX that could change at almost exactly the same time as the other. Each RCX would then send a message to the other (for different reasons) The messages have to be sent ASAP, so one second polling (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | RE: Ant pheromones
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The ink appears translucent on a dry-erase board or projector because the surfaces being written on do not absorb the ink. Has anyone tried washable crayons on one of those boards yet? (URL) Message----- From: Mike Reddy [mailto:mreddy@glam.ac.uk] (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Re: Lego IR serial tower!
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look on ebay ? I'd sell you mine (and buy a USB one) but the postage from here to HK might be huge? "Laurence Yip" <95459906@moscow.cityu.edu.hk> wrote in message news:3D259F9E.9B8891....edu.hk... (...) (23 years ago, 5-Jul-02, to lugnet.robotics.rcx)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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This is an interesting aspect of using two RCXs. My only experience is with NQC and the single byte "Message" function, but I have succeeded in making the communication link bi-directional and reliable. I simply create a process in the "master RCX" (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Re: Lego IR serial tower!
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(...) Go to Bricklink (URL) order one. (Everyone listing these ships internationally!) HTH-- Maggie C. (23 years ago, 5-Jul-02, to lugnet.robotics.rcx)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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I've been working on just such a robot. (two RCXs, two rotation sensors, four light sensors, and two touch sensors) Currently, my biggest problem has been communicating between RCXs. I keep getting collisions with my messages. I've had to limit the (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Re: Ant pheromones
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(...) OK. Two factors here: 1) Status of pens - colour, newness etc. Reflectance of the base surface - glossy, etc. I am using a white board for my playing surface, which is quite reflective. Furthermore, dry wipe pens are translucent - otherwise (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Lego IR serial tower!
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Hello! I'd like to use leJOS on linux but it seems not so good support for usb IR tower, so I'd like to get one IR serial tower like the one from RIS 1.0/1.5, as no parts' sales in HK. Can anyone tell me what should I do? Rgds, Laurence (23 years ago, 5-Jul-02, to lugnet.robotics.rcx)
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| | Re: Problems with changing LNP_HOSTADDR
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(...) With the default CONF_LNP_HOSTMASK (0xf0), the host adress is encoded in the higher 4 bits, so you should write #define CONF_LNP_HOSTADDR 0x10 Eric (23 years ago, 5-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: Several hardware questions.. Laser link Hardware expansion n' more
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I have chased this topic around quite a bit in the last couple of years and built a few prototype devices to perform "I/O expansion". My final conclusion, having gone to the trouble of building a device which permits two of the RCX motor ports and (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Problems with changing LNP_HOSTADDR
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Hi, since a few hours, I'm trying to give an RCX another LNP_HOSTADDR - so I changed the appropriate line in boot/config.h from #define CONF_LNP_HOSTADDR 0x00 //!< LNP host address to #define CONF_LNP_HOSTADDR 0x01 //!< LNP host address and compiled (...) (23 years ago, 5-Jul-02, to lugnet.robotics.rcx.legos)
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| | Re: How do I switch other devices with my RCX.
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----- Original Message ----- From: "Da Byte" <dabyte@hotmail.com> To: <lego-robotics@crynwr.com> Sent: Friday, July 05, 2002 1:35 AM Subject: Re: How do I switch other devices with my RCX. (...) Adding a qestion: Are there any hardware hacks in the (...) (23 years ago, 5-Jul-02, to lugnet.robotics)
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| | Re: How do I switch other devices with my RCX.
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(...) My original idea is to switch a 12 - 14 V, 250 mA (Conrad) infrared beamer using my RCX's motor output. But it would be nice to be able to build a kind of universal switch for controling other devices. Thanks in advance! Remko (23 years ago, 4-Jul-02, to lugnet.robotics)
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| | Re: red universal joint
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Hi, I have some of the joints and the huge gears red, yellow and blue iirc Can get pics if wanted Peter N ----- Original Message ----- From: "Ross Crawford" <rcrawford@csi.com> To: <lugnet.robotics@lugnet.com> Sent: Monday, June 17, 2002 7:23 AM (...) (23 years ago, 4-Jul-02, to lugnet.robotics)
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| | Re: Displaying info while debugging
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Hi Ralph, I mentionned a while ago (see msg #508) that I have a problem with SAVE-SYSTEM. Could it be the same problem? Could it related to the USB driver and that, while saving the system, there is no period of inactivity and the buffer gets full (...) (23 years ago, 4-Jul-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Ant pheromones
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I have built my robot but I'm having some problems with the light sensor. Can you give me some advice on wich colors to use to avoid problems or how to put the sensor. Maybe it's just a problem of the RCX but I can't get it to see a thin line at a (...) (23 years ago, 4-Jul-02, to lugnet.robotics)
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