Steven_C Posted April 21, 2003 Report Share Posted April 21, 2003 anyone??http://www.allelectronics.com/cgi-bin/category.cgi?category=search&item=MRE-1&type=storewill it work?? why does it have so many output pins??bye, from Steve Quote Link to comment Share on other sites More sharing options...
Guest the_Swede Posted April 21, 2003 Report Share Posted April 21, 2003 Presumably it would work. I have no clue as to why there are six outputs but that's probably nothing to worry about - some pushbuttons have eight outputs of which six do nothing for some unfathomable reason. They are pretty cheap so at most you will throw some 8-16 dollars away which isn't too bad (I assume you won't be mass-producing LC clones).Anyways, remember these encoders are detented. That means you cannot use TK's interpolation routine and in effect you get 32 pulses/rev instead of 72. That could be too coarse for your purposes if you wish to have a working range of one revolution. Quote Link to comment Share on other sites More sharing options...
TK. Posted April 22, 2003 Report Share Posted April 22, 2003 I'm not sure if this rotary encoder is really applicable for MIOS. The additional pins are not documented, maybe they are used for a push-button function (this would be great) or they are used in conjunction with another movement coding (thumb down)This is the webpage of the manufacturer http://www.nobleusa.com/Unfortunately the datasheet of the SDE161PUB encoder is not freely available...Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
d2k Posted April 23, 2003 Report Share Posted April 23, 2003 Hey...I got in touch with them and received the datasheets a few hrs later... i've put them here:http://www.notapplicable.co.uk/mbhp/sdb161_1.pdfhttp://www.notapplicable.co.uk/mbhp/sdb161_2.pdfhttp://www.notapplicable.co.uk/mbhp/sdb161_3.pdfFrom what I can make out the extra pins are indeed for the inbuilt switch ;). It is the 5bit version with 32 5bit electrical positions and 32 5bit mechanical detents...Are these good, they're a bargin if so...PeaceDan Quote Link to comment Share on other sites More sharing options...
Ian_Hurlock Posted April 23, 2003 Report Share Posted April 23, 2003 So what do you think TK ?Ian Quote Link to comment Share on other sites More sharing options...
Steven_C Posted April 23, 2003 Author Report Share Posted April 23, 2003 Thanks for those replies, it is appreciated.those data sheets are a bit mysterious to me! (I'm still have a great deal to learn before I feel confident with digital technology!)from Steve Quote Link to comment Share on other sites More sharing options...
TK. Posted April 30, 2003 Report Share Posted April 30, 2003 Don't buy these encoders, 5-bit coding is good for developers who want to drive discrete logic with the encoders, but useless for microcontrollers, therefore it is not supported by MIOS. MIOS only supports the common 2-bit coding.Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
Ian_Hurlock Posted May 2, 2003 Report Share Posted May 2, 2003 Ok thanks for that Tk...shame but.Ian Quote Link to comment Share on other sites More sharing options...
Steven_C Posted May 2, 2003 Author Report Share Posted May 2, 2003 Hey, thanks again for the replies!!well what about this encoder....well I tried to place a link but it dosen't work.... so you will have to do a search for 3315 encoder at www.farnell.com (p/no. 653 019)cheapest I've found in Australia, also available internationally through Farnell ?... easy to get?though I don't think 16 pulses per revolution is enough?AUS$ 4.29 for quantities 25 and overNZ$ 5.28 for you Ian, LO! (I think)well it's still kinda expensive I guess! maybe I'll wait for something a little more cost effective!bye, from Steve Quote Link to comment Share on other sites More sharing options...
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