 | | Re: Battery use
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Yes, but it won't last long. The HB's electronics draw around 20 - 40 mA. the lifetime of an alkaline 9v is approx 1 Amp hour. So that give you 25 - 50 hours of run time. In practice, you'd get less, 'cause the 1 AH rating assumes a much slower (...) (24 years ago, 19-Dec-01, to lugnet.robotics.handyboard)
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| | Re: Shuting up the RCX
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(...) Well, you could hack the LEGO firmware. Not easy but possible. Jürgen (24 years ago, 19-Dec-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Battery use
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If I use a separate battery supply for the motor outputs, will a single 9v battery provide sufficient power for the rest of the Handyboard instead of the 8 AA cells (9.6V)? (24 years ago, 19-Dec-01, to lugnet.robotics.handyboard)
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| | Re: Home-made One-way valve
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Alternativeley you can continue using the valve with the old style pump and have an air tank (if you own two) on each side i.e. one that holds the vaccum and one that holds the pressureized air. but... theres still the problem of flipping the valve (...) (24 years ago, 19-Dec-01, to lugnet.robotics, lugnet.technic, lugnet.build)
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| | Re: Home-made One-way valve
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(...) Yes, you can store vacuum. But all you can store is 1 atmosphere. So a little blue tank with 4 atmospheres has a lot more storage than one with negative 1 atmosphere! Also, it's real hard to make vacuum, in the real world. I once built a (...) (24 years ago, 18-Dec-01, to lugnet.robotics)
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| | Re: Shuting up the RCX
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(...) Right, that's an option but perhaps not the ideal for me since I'm working with NQC. Any other? Thanks anyway Jürgen. (24 years ago, 18-Dec-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: Home-made One-way valve
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(...) Also, the external pressure is usually fairly fixed (atmospheric pressure) and there's a lower limit to the internal pressure (absolute vacuum), but no intrinsic upper limit (though it is limited by the strength of the tank). Therefore a (...) (24 years ago, 18-Dec-01, to lugnet.robotics, lugnet.technic)
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| | Re: How to get interval of time
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(...) correct? Yep, that's how I do it & it seems to work. ROSCO (24 years ago, 18-Dec-01, to lugnet.robotics.rcx.legos)
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| | Site Redesign
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Hi all. I have finally gotten around to yet another site re-design. I have added some new areas including pics of my climber robot, and a reviews section. link - www.astolfo.com/lego Dave (24 years ago, 18-Dec-01, to lugnet.robotics)
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| | Re: Home-made One-way valve
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Instead of pushing a pneumatic switch back and forth, you can use the old non-return valve: (URL) the pump to the middle hole, connect the air tank to the left hole and leave the right hole free. The old style pump will pull air out of the tank and (...) (24 years ago, 18-Dec-01, to lugnet.robotics, lugnet.technic, lugnet.build)
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| | Re: Home-made One-way valve
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(...) matter, (...) Well said, Steve, I agree. A tank is simply a container whose inner gas (air in this case) can have a different pressure from the one outside. This pressure can be higher or lower than the one of the air in the environment, but (...) (24 years ago, 18-Dec-01, to lugnet.robotics)
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| | Re: Home-made One-way valve
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(...) ...the whole concept of "storing vacuum" is a little disturbing. :-) Perhaps "lowering the air pressure" in the tank would be a little more reasonable! ---...--- Steve Baker ---...--- Mail : <sjbaker1@airmail.net> WorkMail: <sjbaker@link.com> (...) (24 years ago, 18-Dec-01, to lugnet.robotics)
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| | Re: Installation Problem: RIS2.0 USB on Fast Athlon ??????
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Just a few questions. What type processor is it? (Pentium III or Pentium IV) What OS? The reason being is, there are some minor issues with Win98 and Pentium IV processors, as well as having some (...) (24 years ago, 18-Dec-01, to lugnet.robotics)
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| | Re: Home-made One-way valve
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(...) you can store the vacuum in the LEGO tank or any other tank for that matter, but the technic pumps will not work for this unless you do a bit of work to figure this out: if you hook an old style pump straight to a valve (dont know which pin (...) (24 years ago, 18-Dec-01, to lugnet.robotics, lugnet.technic, lugnet.build)
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| | Re: Home-made One-way valve
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(...) made (...) hose (...) You store it the same way. A tank can store a vacuum as well as pressure - it's basically equivalent to increasing the pressure outside. This principal was used on many steam trains (and some diesels?), which use vacuum (...) (24 years ago, 18-Dec-01, to lugnet.robotics, lugnet.technic, lugnet.build)
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| | Re: Home-made One-way valve
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(...) Alas it doesn't work that way at all. The air tanks will definitely not work with the old style pneumatics whatever way you try to incorporate them in (yep, I spent a good hour checking). Now as I understand it, the air tank is meant to store (...) (24 years ago, 18-Dec-01, to lugnet.robotics, lugnet.technic, lugnet.build)
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| | How to get interval of time
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In NQC, I can use ClearTimer(0) and Timer(0) to get interval of time, how can I do it in legOS? I used t1 = sys_time, then t2 = sys_time, so interval = t2 - t1, is it correct? Zhengrong (24 years ago, 18-Dec-01, to lugnet.robotics.rcx.legos)
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| | Robot Controller 1.2b1
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I've posted a new version of Robot Controller ---the ideal companion to NQC for Mac OS X users. This version fixes a couple of bugs. Download from: (URL) the way, has anyone tried it? It would be nice to get some feedback! Barney. (24 years ago, 17-Dec-01, to lugnet.robotics.rcx.nqc)
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| | Re: RCX remote control and the use of PICs
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Hi Stef, A great project, well designed, and very well documented and presented. Thanks! I'll probably make one of these pretty soon. Nice work Michael (...) (24 years ago, 17-Dec-01, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | RCX remote control and the use of PICs
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hi All, Inspired by some applications of the 16F84 PIC, we came up with the idea to make a IR-module, which is capable of doing all the InfraRed tasks we could imagine with the RCX. Well it hasn't come so far, but we have build a RCX IR-remote (...) (24 years ago, 17-Dec-01, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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