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Title: Button network Post by: smainj on January 30, 2008, 08:45:22 20:45 Description of project :
30 button every one is sepearate by 10 metre the LCD display name of presed button. this is my schema what you think ? i wait for your comment Title: Re: Button network Post by: MYXATA on January 31, 2008, 09:56:21 09:56 U1 must be master on line and must read state of buttons.
Title: Re: Button network Post by: puta on January 31, 2008, 10:16:33 10:16 I think some form of procedure (Protocol) may have to be used when talking on the shared media. Becuse of, if all the remote buttons talk simultaniously, then the received processor may confused of the signal. This effect may be significant when the signal is propegated over a long wires.
This is some what similar to the Ethernet in a shared media (bus), and ethernet users CSMA/CD to detect collisions and wait random period of time. Hope this will add little value. Title: Re: Button network Post by: alpaslan on January 31, 2008, 03:33:31 15:33 This is useless post without codes.
What is your aim? Almost every one can draw this kind of dsn.... Do not send meaningless posts.... Title: Re: Button network Post by: shobits1 on January 31, 2008, 08:05:25 20:05 I agree with puta, but i think the problem will be resolved by adding a sensor to knowledge the 16F84 before the ID of button will be sent across the MAX487, i also think adding a amplificator stage to bost the signal is good idea since the line will be up to 300m
also i agree with alpaslan about the true purpose of this scheme, by tell us what's your aim, this will help you to get quicker responce and make this post helpfull. Title: Re: Button network Post by: smainj on January 31, 2008, 10:27:43 22:27 first thanks for all
@ alpaslan My project have tow party Some hardware and some software Now I'm building the hardware If you find that my schema is functional I spend on the Softawre party and i don't think any one can design this schema for game (translated by google :P) Posted on: January 31, 2008, 10:33:27 22:33 - Automerged i have used MAX487 because can drive 128 receiver for 4000ft cable Title: Re: Button network Post by: niktesla on February 01, 2008, 12:08:42 00:08 Hi Ismainj,
The time I did something with your project, but actually in the system of PIC's I useu some 12f675.O pic is a master 16f628. In this small project I do not concerned with protocol for communication and this is something to start thinking because I have great interest in this type of project. I demand it and postare you here to enjoy. Sorry my english (By Google) ;) Niktesla ;) |