 | | RE: Magnetic Levitator
|
|
We tried using the Handyboard (which is faster than RCX) and it could not do it. I think the RCX is not fast enough for UNSATBLE control systems such as magnetic levitation, etc. A while back, I proposed the inverted pendulum problem as a challenge, (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
|
| |
| | Re: Magnetic Levitator
|
|
(...) I think that it would be possible to use an RCX. I used four op amps in my circuit; the first amplifies the signal coming from the phototransistor, the second differentiates the signal, the third takes the difference of the proportional and (...) (24 years ago, 7-Dec-01, to lugnet.build, lugnet.general, lugnet.robotics)
|
| |
| | Re: rcx power circuit
|
|
(...) Did you check it with a load (such as the RCX) on it? Some power supplies can only regulate the voltage when there is some kind of load. If you just measure the voltage with nothing except a meter on the end, it may well be insanely high but (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
|
| |
| | Re: Rotation sensor woes
|
|
"Steve Baker" <lego-robotics@crynwr.com> wrote in message news:3C0F6DC6.704B7A...ail.net... (...) [snip] (...) [snip] Thanks for the advice Steve and everyone else. For now it'll be attached using axles and 1x2 bricks with axle holes to give me some (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
|
| |
| | Re: rcx 2.0 without power plug !?
|
|
(...) Actually, it was removed in 1.5 - although *some* 1.0 RCX's were shipped in RIS 1.5 sets. That's how I got my RCX 1.0 so I know that's true. (...) No - not unless it's a *VERY* early 1.5. (...) Yes - you definitely can. So far, all versions of (...) (24 years ago, 7-Dec-01, to lugnet.robotics)
|
| |
| | Re: rcx power circuit
|
|
(...) The 12 volt AC Train transformers work just fine. I've used one for weeks at a time. Also, I believe Dacta sells the Train Transformer as the RCX power pack. Dean (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Re: rcx power circuit
|
|
(...) It does. 100% Dean (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Re: rcx power circuit
|
|
(...) I'm pretty sure that the 2.0 firmware will work on a 1.0 or 1.5 brick. - Jacob (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Pneumatic Hand pump mod
|
|
Has anybody attempted to convert the hand pump into a double acting cylinder? Excuse my total ignorance about things pneumatic, it may be a totally silly thought on my part! I have noticed that the hand pump is a lot more commonly available (...) (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | RE: rcx power circuit
|
|
Thanks for all the information. Just a few comments... (...) ... (...) ... (...) I have not verified this myself, but from discussions a long time ago I remember that the power for the motors is not run through the voltage regulator. Which means (...) (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Re: rcx power circuit
|
|
(...) FYI - I ran my RCX1.0 for a while with a 12V DC adapter. The RCX has "9-12V" printed above the plug. One day I thought I check my DC adapter and found it was actually putting out 18V! Needless to say I stopped using it, but I had been running (...) (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | rcx power circuit
|
|
hi list again! thanks a lot for all your replies to my postings about accu pack and power plugs! since i already got my ordered 1.0 rcx's today (thanks rob!) and now own all versions of the rcx, i disassembled them all to have a look at the power (...) (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Re: rcx 2.0 without power plug !?
|
|
(...) Train Power supplies... That's what it is. You can get them cheap on ebay etc... Dean (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Re: rcx 2.0 without power plug !?
|
|
(...) One of the changes to RIS 2.0 is the removal of the AC power jack. (...) Does the RCX in RIS 1.5 have a power adapter? I don't a RIS 1.5 yet (getting one tomorrow!). What I do know is that Lego Dawsonville, GA (706) 216-2800 has the RCX 1.0, (...) (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Re: rcx 2.0 without power plug !?
|
|
(...) I believe you can get an RCX with AC plug from DACTA (Ask before ordering) I got one a couple of months ago ($125, Ouch) Lester (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Re: rcx 2.0 without power plug !?
|
|
(...) That was only a rumour, AFAIK there are no RCX 2.0 with a connector for external power supply. (...) Good question, maybe they are playing version number tricks on us? (...) Yes, I think they are all identical from a user point of view. My RCX (...) (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Re: rcx 2.0 without power plug !?
|
|
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Since RIS 1.5 the RCX no longer has the adapter for an external powers source. Lego obviosuly did not change the design of some of the components of the RCX. So in conclusion RIS 1.5 and 2.0 don't (...) (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | rcx 2.0 without power plug !?
|
|
<color><param>0100,0...</param>hi guys! i got a brand new r.i.s 2.0 set (cheap :-), and now i'm a little confused: the rcx brick (it says "2.0" on it) has no connector for an external power source. i thought it should!?? however, if i remove the (...) (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Re: NQC, Mac OS X, and the USB IR Tower.
|
|
Dave, I did have the driver installed in OS 9. I shut down the classic environment, and repeated my test. The program downloaded 100% of the time! I haven't tried deleting the USB IR Tower driver preference file from the OS 9 system yet. I was using (...) (24 years ago, 6-Dec-01, to lugnet.robotics)
|
| |
| | Re: Rotation sensor woes
|
|
(...) I have three of these things and they all work flawlessly. You should be able (for example) to thread the rotation sensor onto the output of a standard Lego Mindstorms motor and tie the two together with a single 4x4 plate that would straddle (...) (24 years ago, 6-Dec-01, to lugnet.robotics)
|
