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    3-Axis Stepper Controller

    hello guys, its a very good and nice thread for 3-axis cnc. of course its a long thread of 22 pages (took me 1 whole day to read and understand) but iam able to solve my lot of doubts and questions. thanks guys (spl. MP,nikolaw and GreekPIC... others too) i saw lot of questions regarding the...
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    Driving a HDD motor

    i also would like to know the buz11 replacement. iam unable to find one in my area. and how much voltage can i feed to the HDD motor(min and max)
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    efficient 12v to 5v regulator chip.

    yes it is available. and in TO-220 package. thanks ante. **if it is so efficient can i place it in a closed box(with small hest sink) for my motorcycle project??
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    efficient 12v to 5v regulator chip.

    yes i saw those.but no samples for these chips  :( any other maxim chips. @hotwaterwizard thanks i'll try these too
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    efficient 12v to 5v regulator chip.

    is it efficient than 7805? imean if we compare heat produced by these 2(7805 and transistor based circuit)which one is good
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    efficient 12v to 5v regulator chip.

    hello all, i need 5v supply from my vehicle 12v battery.i know i can use 7805 but the problem is my circuit drives 20 LEDs continuously which roughly needs more than 400ma of current(over all).and the area is so conjusted i can't mount a big heat sink. so can i use dc-dc converter for this...
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    chat-cord--> connect ur phone to PC

    no replies  :-[ guys i desperately need help in this topic
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    chat-cord--> connect ur phone to PC

    hi all i have been working on this project from 2 weeks.it worked nice. it is really worth making circuit. there 2 types of circuit. 1.it uses 600:600 center tapped transformer   http://www.grynx.com/projects/build-your-own-chat-cord/1/ 2.this uses combination of resistors and capacitors...
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    charger for Cordless phone battery.

    cool. thanks a lot ante. tomorrow i'll get some resistors of different values.so that i can make it variable. imean 15ma-c/20           30ma-c/10 for 14Hr           60ma-c/5  for 7Hrs (ofcourse not preferable) thanks once again.for helping me u ppl are just really amazing .  :-*
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    charger for Cordless phone battery.

    as per c/10 for 14Hr rule,current for charging a 300ma battery shld be 30ma. right. but in previous post u said 82 Ohms resistor will work.where as it shld be 40 Ohms for 30ma  correct me if iam wrong iam bit confused ???
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    How to make RPM counters

    i think magnetic sensors work efficiently at high speeds compared to IR sensors. u can uses a pair of magnet and halleffect sensor for calculating RPM. i dono much abt pic programming.but i came across such RPM counter while searchig for LED POV stuff...
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    charger for Cordless phone battery.

    got it. thanks. is there any particular formula for this resistor value. imean in furture if i want to charge packs of 700ma or 800ma etc i need to change resistors too right. and gyus to charge AA or AAA "single cell" what modification shld be done in  lm317 design.
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    charger for Cordless phone battery.

    thanks for correcting me. is current calculation is right(c/10 for 14Hrs) if yes then the final result will be 7-8v input to LM317 with R1 82Ohms resistor.(as ante said) can charge a 3.6v battery pack safely in 14Hrs
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    charger for Cordless phone battery.

    thanks ante.i'll go with lm317 based circuit i dono much abt these abt these rechargbles.but i think ni-cd shld be chrged at 1.5+pack voltage and c/10 of its current rating it. if it is true then i need 5.1v @ 30ma for 14Hr .
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    charger for Cordless phone battery.

    ohh ok then i did a small search on net and i found below 2.which one of this is best. http://agendawiki.com/cgi-bin/aw.pl?ChargingCircuits this one from our forum only. and this is from groups-google- what is ur openion abt these
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    charger for Cordless phone battery.

    thanks ante is it possible to make some simple moniter type.imean which got atleast indictor(imean lighting up an LED when charging done) using some transistor like..
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    charger for Cordless phone battery.

    hi all iam working on a school LED project.where we need to use a 3.6v 300ma battery(one used in cardless phones).u know cordless phone chargers are dumb type.can u suggest me some good charger for this battery pack. i don't want  hi-fi type of charger.just simple one which makes the battery...
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