 | | Bug in RCX 2.0 beta (Was: RIS 2.0 software now in beta)
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Dear all, I'm experiencing a strange phenomenon in my MindScript program which I believe to be a bug, where within a task the assignment of a multiplication of a local variable (containing value 0) and a constant (set to 10) to a second local (...) (24 years ago, 4-Mar-01, to lugnet.robotics.rcx, lugnet.robotics)
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| | Re: Bug in RCX 2.0 beta (Was: RIS 2.0 software now in beta)
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Dear all, I have managed to pin down the problem a bit further. Please look at the following program: program foo { const c10 = 10 main { forever {} } task test { local v2f local v2e local v2d v2f = 1 v2e = 2 v2d = v2e * c10 } } If you download this (...) (24 years ago, 4-Mar-01, to lugnet.robotics.rcx, lugnet.robotics)
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| | Motor control ic
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Hello all, Can anyone tell which controller ic I can use best for the lego 9v motors. And can someone tell me how lego manages it that if you connect your motor wrong (90deg) It still works. Altrought I think it will short-circuit the rcx. With kind (...) (24 years ago, 4-Mar-01, to lugnet.robotics)
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| | Re: Motor control ic
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(...) Look really carefully at where the metal contacts are on the studs of the RCX and cable ends. You'll probably have to draw a picture of it to get your head around it. It's really quite clever. However, electrically, there isn't anything (...) (24 years ago, 4-Mar-01, to lugnet.robotics)
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| | Re: For those awaiting new shipments of RIS ?.?
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My lacal Best Buy has RIS 1.5 on sale at MSR. Mike... (Chicage area) (...) (24 years ago, 5-Mar-01, to lugnet.robotics)
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| | 3 Robot Project - ALL DONE ALMOST
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I'm just about done with my 3 robot project but have one last problem. I've posted before and have taken people's advise on building this project but alas I have one last barrier before I can present this at work for our Bring a Child to Work Day (...) (24 years ago, 6-Mar-01, to lugnet.robotics)
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| | Re: 3 Robot Project - ALL DONE ALMOST
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(...) use a 'glider' instead. (One of those black 2x2 stud inverted dome thingies). They slide quite well over smooth surfaces. Maybe even less friction than the pivot wheel. But mainly, they slide equally well in all directions, so no problems with (...) (24 years ago, 6-Mar-01, to lugnet.robotics)
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| | Re: Cheshire LEGOFest pictures
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(...) Ok, here is the scoop; it is the control box and transmitter for a radio control system custom built by John Barnes, a frequent poster on lugnet.robotics, which he sent to me just after Christmas. It really makes a big difference to models for (...) (24 years ago, 6-Mar-01, to lugnet.loc.uk, lugnet.technic, lugnet.robotics)
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| | Re: Cheshire LEGOFest pictures
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Wow, I want one :-) OK John, let me know on the price, Thanks Michael (...) (24 years ago, 6-Mar-01, to lugnet.loc.uk, lugnet.technic, lugnet.robotics)
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| | Re: 3 Robot Project - ALL DONE ALMOST
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Try just using one wheel on your caster. This will eliminate a good bit of the drag you are seeing. With one wheel, the drag shouldn't disturb your vehicle's heading as much. You could be tricky and use a spherical roller or an omni wheel instead, (...) (24 years ago, 6-Mar-01, to lugnet.robotics)
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| | Re: Cheshire LEGOFest pictures
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8 radio channels!! yippee!! Beats the RCX to a pulp!! When will these be available, John? And how much? Will you have bulk sales???!!!!????!!!! 8?) ROSCO Jennifer Clark <jen@vulture.dmem.strath.ac.uk> wrote in message (...) (24 years ago, 6-Mar-01, to lugnet.loc.uk, lugnet.technic, lugnet.robotics)
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| | (canceled)
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| | Re: Cheshire LEGOFest pictures
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(...) Well, not exactly - the RCX has a computer inside! (24 years ago, 7-Mar-01, to lugnet.robotics)
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| | Re: 3 Robot Project - ALL DONE ALMOST
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(...) What is a sperical roller andomi wheel? What do they look like? Thanks Ahui (24 years ago, 7-Mar-01, to lugnet.robotics)
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| | Re: Cheshire LEGOFest pictures
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(...) Wow...that seems really impressive! I think 8 channels would make it a radio-based equivalent of the dacta robolab console. I would love to get hold of one of these units...as ROSCO said, how much are they going to cost? -Gaurav Thakur, raving (...) (24 years ago, 7-Mar-01, to lugnet.loc.uk, lugnet.technic, lugnet.robotics)
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| | Re: Cheshire LEGOFest pictures
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On Tue, 6 Mar 2001 12:40:40 GMT, Jennifer Clark <jen@vulture.dmem.strath.ac.uk> wrote: What frequency is he using? Matthias Jetleb VA3-MWJ (24 years ago, 7-Mar-01, to lugnet.loc.uk, lugnet.technic, lugnet.robotics)
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| | Re: Cheshire LEGOFest pictures
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WHERE CAN I CONTACT JOHN for the radio control ?? Mac ----- Original Message ----- From: Ross Crawford <rcrawford@csi.com> To: <lego-robotics@crynwr.com> Sent: Wednesday, March 07, 2001 4:23 AM Subject: Re: Cheshire LEGOFest pictures (...) makes (...) (24 years ago, 7-Mar-01, to lugnet.robotics)
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| | Re: Cheshire LEGOFest pictures
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oooooooohhhhhhh... I'll take one too!!! Gary Michael Edwards <medwards@ukonline.co.uk> wrote in message news:G9s1sv.56H@lugnet.com... (...) involved (...) makes a (...) but (...) need (...) black 9V (...) of the (...) controlled (...) two (...) (...) (24 years ago, 7-Mar-01, to lugnet.loc.uk, lugnet.technic, lugnet.robotics)
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| | Re: Cheshire LEGOFest pictures
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(...) It gets better - in my haste yesterday I forgot to mention one of the most important features of the transmitter unit; it has an RS232 port to allow connection to your computer, which can then control the motors over the air interface. (...) (24 years ago, 7-Mar-01, to lugnet.loc.uk, lugnet.technic, lugnet.robotics)
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| | Re: Cheshire LEGOFest pictures
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(...) Now if it had a reverse path to send sensor data back to the computer, you'd *really* have something. Without some way to read back sensors though, the ability to control motors using the computer is a LOT less useful than you might think. (24 years ago, 7-Mar-01, to lugnet.robotics)
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