Robotics : 2783


Robotics / 2783	2782 \| 2784

Subject:	Re: IR Port as night/day detector (Was: Re: IR Port as Proximity detector.)
Newsgroups:	lugnet.robotics
Date:	Thu, 14 Jan 1999 15:23:58 GMT
Original-From:	Laurentino Martins <lmartins@ANTISPAMmarktest.pt>
Viewed:	1247 times

At 15:04 14-01-1999 Thursday , you wrote: > Pardon my newbieness. This is my first post here and I'm still saving > up to buy a MindStorms set. I was wondering if the IR port on the RCX > can be used to determine if it's night or day out without using the > light sensor. Are IR readings of "nothing" any higher or lower in the > dark than they are in the light? I though the RCX had a internal clock. I don't have a RCX so I can not tell. The CyberMaster doesn't. Laurentino Martins *<||:-) [mailto:lau@mail.telepac.pt] [http://www.terravista.pt/Enseada/2808/] -- Did you check the web site first?: http://www.crynwr.com/lego-robotics

Message has 3 Replies:

		Re: IR Port as night/day detector (Was: Re: IR Port as Proximity detector.)
(...) Not a time of day clock, but you have the materials to do your own once you tell it what time it is. This would probably require you to use something like legOS. John A. Tamplin Traveller Information Services jat@Traveller.COM 2104 West Ferry (...) (26 years ago, 14-Jan-99, to lugnet.robotics)

		Re: IR Port as night/day detector (Was: Re: IR Port as Proximity detector.)
(...) How's that? The SDK has the function SetWatch( Hours, Min ). Also, in page 47 (printed page 45) we can read in the table that the source 14-0 : "RCX. Watch. Integer where MSB=hours and LSB=minutes" If this isn't a time of day clock, tell me (...) (26 years ago, 14-Jan-99, to lugnet.robotics)

		Re: IR Port as night/day detector (Was: Re: IR Port as Proximity detector.)
(...) Sorry, maybe I didn't explain it very well. I don't necessarily need a clock to tell the time. What I want to do is turn on a light based on a reading from the IR port. Is this possible without using the light sensor? Thanks, Daniel. (26 years ago, 15-Jan-99, to lugnet.robotics)

Message is in Reply To:

		IR Port as Proximity detector.
Someone (Can't remember who, so unfortunately unable to give credit for the idea appropriately) posted the fact that the IR port used as a emitter coupled with the Light Sensor unit as the reciever can be used as a IR proximity sensor. Seemed like a (...) (26 years ago, 8-Jan-99, to lugnet.robotics)

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