Search found 166 matches

by bwts
Thu Feb 05, 2004 3:19 am
Forum: General Discussion
Topic: Amazing led on a hard drive
Replies: 14
Views: 6142

Re: Amazing led on a hard drive

Mark01 the motors R steppa motors.<p>B)
by bwts
Thu Jan 29, 2004 3:46 am
Forum: General Discussion
Topic: Amazing led on a hard drive
Replies: 14
Views: 6142

Re: Amazing led on a hard drive

May B it loves U<p>B)
by bwts
Thu Jan 29, 2004 3:35 am
Forum: Robotics
Topic: Out = Out + In
Replies: 5
Views: 4661

Re: Out = Out + In

I may B confused here but I dont think ur code will work! Is 'I' just a single bit of info? if so try the following input sequence + C wot U get 0,1,0,1 I think ull find that the output once toggled will stay in that state reguardless of wether the new input is different 2 the last input. Again I st...
by bwts
Tue Jan 27, 2004 4:18 am
Forum: Robotics
Topic: coupling???
Replies: 1
Views: 2774

coupling???

Curious about how people connect their electronics to their mechanics, for example how do y'all connect unmachined motor shafts to gear boxes and the like?<p>B)
by bwts
Sat Jan 17, 2004 9:28 am
Forum: Robotics
Topic: DC motors on a robot
Replies: 3
Views: 4160

Re: DC motors on a robot

Unless u want to complicate the electronics of ur "robot" (u really mean remote control car I fink) or have a cable connecting it 2 the mains supply ull find DC motors a much better option. As 2 which DC motor well that depend on the wieght power ting!<p>B)
by bwts
Thu Jan 08, 2004 5:16 am
Forum: Robotics
Topic: Pic Programmer kits
Replies: 6
Views: 5768

Re: Pic Programmer kits

EPE do a homebrew PIC programmer http://www.epemag.wimborne.co.uk/
No compiler tho! files need 2 B in .asm or .hex<p>B)
by bwts
Wed Dec 10, 2003 5:25 am
Forum: General Discussion
Topic: RMS of a triangle wave???
Replies: 16
Views: 6985

Re: RMS of a triangle wave???

Thanx this has freed some extra space in my thought processes (not that things like this keep me awake at night u understand ;) )<p>B)
by bwts
Tue Dec 09, 2003 4:41 am
Forum: General Discussion
Topic: RMS of a triangle wave???
Replies: 16
Views: 6985

RMS of a triangle wave???

This is buggin' me coz I have a feeling that the answer is simple. I have an AC triangle wave alternating between +5 and -5 but no time scale (ie no frequency!) given, so what is its RMS value?<p>B)
by bwts
Mon Dec 01, 2003 3:27 am
Forum: General Discussion
Topic: Joystick controller
Replies: 7
Views: 3254

Re: Joystick controller

Great init U go away + think about somefing + when u get back somebody else has alread thought of it! I agree with jo + lin servos is the way 2 go!!<p>B)
by bwts
Fri Nov 28, 2003 4:00 am
Forum: General Discussion
Topic: Joystick controller
Replies: 7
Views: 3254

Re: Joystick controller

There R many hardware devices that will do an analogue to digital convertion for U for example have a look at http://www.microlink.co.uk/adc.html have U thought about using a microcontroller this would make life easy (well it does 4 me anyway :) ) As for directional control how about checking the pr...
by bwts
Thu Nov 27, 2003 4:41 am
Forum: General Discussion
Topic: Joystick controller
Replies: 7
Views: 3254

Re: Joystick controller

First of all Ive never hear of a 3 axis steppa motor (but that doesnt mean such a thing doesnt exist) U will have 2 use 2 motors, 1 for up and down + another for side 2 side. As for how to do this well U could bye a CCTV setup + place the pumpkin over the camera (easy but mayB pricey mayB not tho I ...
by bwts
Thu Nov 20, 2003 3:53 am
Forum: General Discussion
Topic: Latch Circuit
Replies: 25
Views: 8728

Re: Latch Circuit

mmm thought I posted this once but somfing weird happened. Any way check out the following site as it will give U the info U R after:<p>http://www.play-hookey.com/digital/rs_nand_latch.html<p>B)
by bwts
Thu Nov 20, 2003 3:51 am
Forum: General Discussion
Topic: Latch Circuit
Replies: 25
Views: 8728

Re: Latch Circuit

Hi Michael check out the following link:<p>http://www.play-hookey.com/digital/rs_nand_latch.html<p>they call it a RS instead of a SR but its the same thing.<p>B)
by bwts
Tue Nov 18, 2003 6:21 am
Forum: General Discussion
Topic: Latch Circuit
Replies: 25
Views: 8728

Re: Latch Circuit

hi michael,<p>The missing bit of theory I think U should know about is a device calld a flip flop. In its simplest form U have 2 inputs one to set the output (in your case the laser beam being broken) and another that will reset the ouput (in this case u) once set the output will stay on unil U rese...
by bwts
Fri Nov 14, 2003 4:37 am
Forum: Robotics
Topic: Merkle-Korff Motor and Tachometer
Replies: 14
Views: 9388

Re: Merkle-Korff Motor and Tachometer

Well I would:<p> rectify the signal to get a DC level set up a ramp voltage starting at zero set the clock runnning loop: compare the ramp voltage with signal level if = then take the clock value else loop put clock value into processor look up chart - clock against rpm rest of program.................