#garfield | Logs for 2016-12-29

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[01:11:14] <rue_shop3> I think there are two trying to work out slam
[01:19:59] <zhanx> one is weird on it
[01:20:18] <zhanx> like he/she doesn't want to research just wants answers
[01:21:22] <rue_shop3> did you see the drive nut things i'm making?
[01:29:21] <zhanx> nope
[01:29:33] <zhanx> Rue http://i.imgur.com/3QNZMdh.png whats wrong with this diagram
[01:33:49] <rue_shop3> 104.0uF should be 1uF
[01:33:56] <rue_shop3> 104 is the code, not the value
[01:34:32] <rue_shop3> it will, of course only stay with the peak value of the pot
[01:34:48] <zhanx> where does it bleed off too?
[01:34:52] <rue_shop3> so it'll have to be 'reset' by the software before being read
[01:35:08] <rue_shop3> you use the io pin in low output mode
[01:35:21] <zhanx> not me
[01:35:23] <rue_shop3> usually, this is done as an 'adc' thing, where you measure the discharge time
[01:35:33] <zhanx> its arduino
[01:35:37] <zhanx> as a good thing
[01:35:39] <rue_shop3> so it dosn't have to be an adc pin
[01:35:43] <zhanx> i was like wtf
[01:36:05] <rue_shop3> 104uF is wrong for sure
[01:36:15] <zhanx> a lot is wrong
[01:36:19] <rue_shop3> otherwise, they used to do that on PICS that didn't have adc
[01:36:28] <zhanx> that also
[01:49:53] <rue_shop3> :/ I'v had a week off and I'v achived almost nothing
[01:54:42] <rue_shop3> oh! wow, idea
[01:55:07] <zhanx> cool
[01:55:20] <rue_shop3> it defeated itself pretty quick tho
[10:38:07] <Jymmm> rue_shop3: CONGRATS on ACCOMPLISHING NOTHING!!!
[12:42:59] <zhanx> Three Cheers for Rue. He ACCOMPLISHED NOTHING!!!
[15:20:21] <rue_house> ugh
[17:33:55] <rue_house> smxi
[19:25:27] <Tom_L> wasted week?
[20:02:03] <rue_shop3> yup
[20:02:23] <rue_shop3> I'm playing with ana analog hybrid circuit to do speed regulation of a spindle motor
[20:03:05] <rue_shop3> but I need to squence a sample/hold and ramp genorator reset line, and I think I'll just write someting for a tiny13
[20:03:10] <rue_shop3> to replace it all
[20:03:14] <rue_shop3> made a nice ramp gen tho
[20:04:38] <Tom_L> typically they use either 0-10v or +10 / -10v for speed control
[20:04:49] <Tom_L> the sherline is 0-10v
[20:06:11] <Tom_L> most commercial ones are +10v to -10v swing
[20:12:54] <rue_shop3> yea, I'm gonna use 0-5V
[20:13:11] <rue_shop3> but I want to use a 2pulse/rev disk to sense the speed
[20:13:22] <Tom_L> why not more?
[20:13:23] <rue_shop3> on a non-permanent magnet motor
[20:13:35] <rue_shop3> cause I just want to dial it with a pot
[22:25:19] <zhanx> follow me on this, tell me i am crazy or not
[22:25:32] <zhanx> if you sample microphones in a clock as fast as you can you can use it to tell direction of noise
[22:26:14] <zhanx> when then if you could you can sample the input noise and tell what it was (with a dictionary of sounds)
[22:31:25] <rue_shop3> in a clock?
[22:31:40] <zhanx> circle
[22:31:42] <zhanx> sorry
[22:31:43] <rue_shop3> ok
[22:32:12] <rue_shop3> I cant reconstruct the second sentance either
[22:32:28] <zhanx> i am gonna order a bunch of mics and test my theory
[22:33:01] <rue_shop3> what is the speed of sound?
[22:33:28] <rue_shop3> units 1mach mm/s
[22:33:28] <rue_shop3> * 331460
[22:34:00] <zhanx> yep
[22:34:04] <rue_shop3> .003mm/ms
[22:34:28] <rue_shop3> no, I blew that
[22:34:37] <rue_shop3> oh, yea, no, ok
[22:34:42] <zhanx> 330 feet per sec
[22:34:42] <rue_shop3> 3mm/us
[22:35:10] <rue_shop3> the avrs adc isn't fast enough
[22:36:04] <zhanx> hmm...
[23:38:37] <zhanx> rue, i guess i am moving to a ARM Cortex-M0 for this
[23:40:01] <zhanx> or M3