 | | Re: Touch Switch 2974
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(...) Did you try to test contact bounce ? since there is a rather high value resistor, perhaps Lego added a small capacitor too to debounce it? Philo www.philohome.com (21 years ago, 29-Jun-03, to lugnet.robotics.rcx)
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| | Touch Switch 2974
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(...) metallic (...) with (...) I was fortunate enough to find one of these on BrickLink and it just came in today. It turns out the resistance is 2.2K and I suspect the contacts are metal since the resistance doesn't seem to vary with pressure. (...) (21 years ago, 28-Jun-03, to lugnet.robotics.rcx)
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| | Port 5 Bit 2
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Hi, While delving into the nitty gritty details of the RCX's power off routine, which was discussed a *long* time ago in these threads: (URL) the very low message numbers... :) I noticed that in addition to putting the RAM into low power mode, port (...) (21 years ago, 27-Jun-03, to lugnet.robotics.rcx)
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| | Send/Receive messages under linux
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Hi, I've writen a program to send messages to an RCX, depending on programable key strokes. My idea was to drive the robot "blindly", relying on standard firmware messages and replies. I've used Mr. Kekoa Proudfoot's code for packet assembly (files (...) (21 years ago, 19-Jun-03, to lugnet.robotics.rcx)
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| | 2 Questions
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Is it possible to reserve a particular RCX variable using NQC and then access it from within the program? And is using SetVar() the correct/best way to send a variable to the rcx using VB/spirit.ocx? I'd also like to know if their are any online (...) (21 years ago, 25-Jun-03, to lugnet.robotics.rcx)
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| | Re: All Lego Ack Circuit for LDCC
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(...) indeed, the construction of this beast may be very different (e.g. metallic contact, 0 resistance... and a lot of bounce almost completely avoided with conductive rubber) Philo (21 years ago, 19-Jun-03, to lugnet.trains, lugnet.robotics.rcx)
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| | Re: All Lego Ack Circuit for LDCC
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Thanks Philippe, I wasn't sure of the characteristics of the Cybermaster touch sensors. Also, I didn't want anyone thinking it was OK to use this guy: (URL) checking the resistance (yeah, I know it looks different, but you never know... :-) Mark (...) (21 years ago, 18-Jun-03, to lugnet.trains, lugnet.robotics.rcx)
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| | Re: All Lego Ack Circuit for LDCC
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(...) All touch sensors I measured have a "pressed" resistance between 400 and 600 ohms (depends on touch sensors and on pressure, more pressure meaning lower resistance). Actually there is no separated resistor, you get the internal resistance of (...) (21 years ago, 18-Jun-03, to lugnet.trains, lugnet.robotics.rcx)
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| | All Lego Ack Circuit for LDCC
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Hi All, One of the features of the LDCC firmware is the ability to read the configuration variables out of a DCC decoder installed in a train motor. In order to do this, you need to connect a small circuit consisting of one or two resistors from the (...) (21 years ago, 18-Jun-03, to lugnet.trains, lugnet.robotics.rcx)
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| | Re: DCC for the RCX
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(...) That would be ideal, IMHO. It would allow, among other things, LNP to be used for PC to LDCC communication. At IndyLUG, we've been wishing for DCC L-gauge since inception. The word "thanks" simply doesn't cover it, Mark. Congratulations on (...) (21 years ago, 10-Jun-03, to lugnet.robotics.rcx, lugnet.trains)
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| | Re: BrickFest website?
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(...) Several people have contacted me about running some MindStorms challenges. Only a few have been submitted. (I recently found out that there was a glitch in the Presentation form,:-/ it should be fixed soon. If you have not received an email (...) (21 years ago, 10-Jun-03, to lugnet.events.brickfest, lugnet.robotics.events, lugnet.robotics.rcx)
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| | Re: DCC for the RCX
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Hi Ralph, I should be able to extract the source for the low level driver routines this week. If anyone else is interested, please email me. Note for BrickOS users: it's not simply a matter of plonking the routines into a program. The kernel will (...) (21 years ago, 9-Jun-03, to lugnet.robotics.rcx, lugnet.trains, lugnet.robotics.rcx.legos)
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| | RE: DCC for the RCX
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Mark, would it be possible to share the code of your DCC controller, I am the author of pbForth and would love to add the driver to the pbForth library. I've also got a servo driver in pbForth already. Too bad Hitechnic is out of business. Their (...) (21 years ago, 9-Jun-03, to lugnet.robotics.rcx, lugnet.trains)
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| | Re: DCC for the RCX
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(...) One way is to mount one or more magnets on the underside of the train with their N-S pole oriented across the width of the train (to differentiate it from the couplers of just any old train) and then sense these specially-marked train cars (...) (21 years ago, 9-Jun-03, to lugnet.robotics.rcx, lugnet.trains, FTX)
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| | Re: DCC for the RCX
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(...) LDCC (...) to the (...) to (...) this (...) of (...) index (...) I (...) the (...) Great, Chris, I'm glad it's working for you - and with another brand of decoder, yet! (...) worked (...) mode and (...) parameters. (...) of (...) meanings (...) (21 years ago, 9-Jun-03, to lugnet.robotics.rcx, lugnet.trains)
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| | Re: DCC for the RCX
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I just converted my first engine to DCC yesterday and started playing with LDCC 1.01. LDCC is fantastic! Thank you, Mark! I installed an AD330 N-Scale decoder from Model Rectifier Corp according to the directions on Tom Cook's site. At 0.8 Amps this (...) (21 years ago, 9-Jun-03, to lugnet.robotics.rcx, lugnet.trains)
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| | R: SPIRIT.OCX and embedded visual tools for winCE
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I have developed a framework of classes in C++ that encapsulates the the RCX and its communication either from serial and from usb port. The framework is based on a proprietary library of fundation classes by SYCO called G++ that can be freely (...) (21 years ago, 6-Jun-03, to lugnet.robotics.rcx)
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| | SPIRIT.OCX and embedded visual tools for winCE
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Hi there. I'm conscious that SPIRIT.OCX is quite old and that now there're another ways to control the RCX from any object oriented language on the computer side. I've tried those new methods and are quite good. In my opinion there's a big big point (...) (21 years ago, 5-Jun-03, to lugnet.robotics.rcx)
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| | Re: Remote control under linux
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(...) Looking at your program, I see that you use code like the following to "run" a program: else if(data == P1) code0=0x91+alt; code1=0x00; send(2); This will only do half of the job. This is a "Set Program Number" opcode, which is the equivalent (...) (21 years ago, 3-Jun-03, to lugnet.robotics.rcx, FTX)
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| | Re: You must see LEGOTIC new LEGO site
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Hi, (...) yes, I use one old VCR motor and 2 playing/recording heads. I' ve tested (see the small drawing on my site) with rotation sensor. It acts like gyros in helicopter or segway(but mine is "physic" and not "electronic"): it informs about angle (...) (21 years ago, 2-Jun-03, to lugnet.robotics.rcx)
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