#qi-hardware IRC log for Saturday, 2014-01-18

nicksydneywpwrak: maybe try both balun and see which one is better ?00:55
nicksydneywpwrak: http://downloads.qi-hardware.com/people/werner/anelok/tmp/ybox-draft-20140118.* --> why there is an asteriks ?00:56
nicksydneywpwrak: what if you don't use R2 (0) what will happen ?00:57
wpwrak(asterisk) a wildcard, to be expanded by humans :)01:03
nicksydneypg 3 - pin 11,12,14,18,20,29  are not connected going to be left like that ? or maybe add a hackable pad/TP ? :)01:04
wpwrak(R2) you mean omit the component ? the signal should be very weak then. you'd still send/receive *something* but with heavy loss01:04
wpwrakhmm, seems that i screwed up DP/DM, too :-( well, at least that'll be easy to fix ...01:05
nicksydneywpwrak: (R2) this is where I still don't understand .... R2 is a resistor and it supposed to be used for dropping current but in this case it is used to "strengthen" the signal ? thought normally use a capacitor ? 01:06
wpwrak(baluns) maybe later. swapping baluns means making and populating different boards. so it's not cheap. i'll get the parts, though01:07
wpwrak(r2) no, it's just there to connect. it's a zero-ohm resistor.01:08
wpwrakit could become an inductor, though. so it would (slightly) dampen high-frequency components of the signal.01:09
nicksydneywpwrak: what if we increase the track instead of putting 0 R ? will that helped more ?11:13
wpwrakthat's not the idea :) the idea is to have a place to put a component if we want to tune the antenna12:49
wpwrakright now, i'm not interested in tuning, so i just place a 0R (R2) in series and nothing (the NC cap, C3) in parallel12:50
wpwrakNC = not connected / not placed / ...12:50
wpwrakybox-draft-20140118.* updated13:39
DocScrutinizer05other usual tags used instead of NC: DNP (do not populate), DNC, DNI (do not install)15:39
DocScrutinizer05particularly since "NC" is often used on switches for "Normally Closed" - as opposed to "Normally Open" (some say N means "Neutral" here, the semantics is the same though)15:40
DocScrutinizer05(also C may mean "Contact")15:41
DocScrutinizer05so NeitralContact is another valid expansion of NC15:41
DocScrutinizer05neutral even15:41
qi-bot[commit] Werner Almesberger: modules/usb_a_rcpt_mid.fpd: enlarge 48458 bay by tolerance (master) http://qi-hw.com/p/kicad-libs/d83737d19:14
wpwrakargh. with the heat, the junk in my cranial cavity simply doesn't work :-(19:16
wpwrakmilled a board and wondered why i had such a hard time to get it to start in the lower left corner. turns out if had the array index set to 1 and not 0. stupid ...19:17
DocScrutinizer05send half of that heat over here, we can use it19:32
wpwrakabout 38 C here ... how much do you have ?20:23
wpwrakoh, and while i was taking siestas, your little project leaped over 60k. yet another nice round number. congrats !20:24
DocScrutinizer05yeah, and just another 1500 donation for prototype made it leap over 61k, and made me aware that the meanwhile 8 prototypes (+ 1 series device per proto) had not been counted to the number of devices. So we leaped the 300 devices too :-D22:01
larschm, if prototypes make so much more money you should make a business out of selling prototypes, once the prototypes are done move on to the next project ;)22:15
DocScrutinizer05I don't think prototypes make much money, neither are they a huge selling qty, nor is the win margin better than for normal series devices. Rather the opposite, since 1500 gets you one prototype PLUs one series device for ~700 or even more. It might turn out the prototypes are the business with smallest win margin22:24
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