zigbee???
in [Design]
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From: Joerg on 19 May 2010 09:32 krw(a)att.bizzzzzzzzzzzz wrote: > On Tue, 18 May 2010 08:36:36 -0700, Joerg <invalid(a)invalid.invalid> wrote: > >> JosephKK wrote: >>> On Sat, 15 May 2010 16:06:57 -0700, Joerg <invalid(a)invalid.invalid> >>> wrote: >>> >>>> Nico Coesel wrote: >>>>> Joerg <invalid(a)invalid.invalid> wrote: >>>>> >>>>>> Jim Thompson wrote: >>>>>>> On Sat, 15 May 2010 10:29:08 -0700, Joerg <invalid(a)invalid.invalid> >>>>>>> wrote: >>>>>>> >>>>>>>> Charlie E. wrote: >>>>>>> [snip] >>>>>>>>> IIRC, Jennic has a development kit and modules that are not too >>>>>>>>> expensive, like $500 for the dev kit... >>>>>>>>> >>>>>>>> Hmm, no pricing on the site: >>>>>>>> >>>>>>>> http://www.jennic.com/products/modules/jn5148_modules >>>>>>>> >>>>>>>> But it's just bare modules. When designing I don't really need that and >>>>>>>> $500 just for home automation will raise a flag with SWMBO, just like a >>>>>>>> $500 handbag would with me :-) >>>>>>> Cheapskate! You mean your wife has no Coach purse? >>>>>>> >>>>>> Nope. We tend to use such monies in more useful ways. For example as a >>>>> OTOH buying a bag helps a few kids in Asia to fill their bellies. >>>>> >>>> Sending money to an organization where you can be sure that >80% of >>>> donations make it to the recipients in the form of food and medication >>>> helps a lot more. >>> I am a bit torn at that level. Propping up overpopulation (more than the >>> relevant economy can provide for) strikes me as an error, and poor >>> ethics. >> >> Sure, but you can't let the kids starve. We cannot punish them for the >> mistakes their parents and their countries made. > > That's what makes it tough. The kids will be the next adults with nothing > solved. Right, mostly because they live in contries with rather incompetent government. But once you get correspondence going the chances improve because now there can be some mentoring. The best sort of mentoring is what some volunteer IEEE members do in South America. There, lots of people die from lung diseases because they read using kerosine lamps at night. So they install a few solar-battery-LED thingamagics in the first 2-3 huts while some of the more clever villagers look at how the work is done. Then, they hand the toolbox and the materials for the next dozen huts to the villagers. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Joerg on 19 May 2010 12:37 D Yuniskis wrote: [...] > OTOH, I subscribe to the philosophy I was taught in my language > design class: programs should fit on a single sheet of paper. > (of course, no one ever defined what a single sheet was...) > For small projects of great complexity: http://behance.vo.llnwd.net/profiles3/93397/projects/183788/933971234687513.jpg Else just order a roll, they come in sizes where you need a 30-ton faltbed trailer. Technically that's all one sheet :-) [...] -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: krw on 19 May 2010 18:01 On Wed, 19 May 2010 06:32:57 -0700, Joerg <invalid(a)invalid.invalid> wrote: >krw(a)att.bizzzzzzzzzzzz wrote: >> On Tue, 18 May 2010 08:36:36 -0700, Joerg <invalid(a)invalid.invalid> wrote: >> >>> JosephKK wrote: >>>> On Sat, 15 May 2010 16:06:57 -0700, Joerg <invalid(a)invalid.invalid> >>>> wrote: >>>> >>>>> Nico Coesel wrote: >>>>>> Joerg <invalid(a)invalid.invalid> wrote: >>>>>> >>>>>>> Jim Thompson wrote: >>>>>>>> On Sat, 15 May 2010 10:29:08 -0700, Joerg <invalid(a)invalid.invalid> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> Charlie E. wrote: >>>>>>>> [snip] >>>>>>>>>> IIRC, Jennic has a development kit and modules that are not too >>>>>>>>>> expensive, like $500 for the dev kit... >>>>>>>>>> >>>>>>>>> Hmm, no pricing on the site: >>>>>>>>> >>>>>>>>> http://www.jennic.com/products/modules/jn5148_modules >>>>>>>>> >>>>>>>>> But it's just bare modules. When designing I don't really need that and >>>>>>>>> $500 just for home automation will raise a flag with SWMBO, just like a >>>>>>>>> $500 handbag would with me :-) >>>>>>>> Cheapskate! You mean your wife has no Coach purse? >>>>>>>> >>>>>>> Nope. We tend to use such monies in more useful ways. For example as a >>>>>> OTOH buying a bag helps a few kids in Asia to fill their bellies. >>>>>> >>>>> Sending money to an organization where you can be sure that >80% of >>>>> donations make it to the recipients in the form of food and medication >>>>> helps a lot more. >>>> I am a bit torn at that level. Propping up overpopulation (more than the >>>> relevant economy can provide for) strikes me as an error, and poor >>>> ethics. >>> >>> Sure, but you can't let the kids starve. We cannot punish them for the >>> mistakes their parents and their countries made. >> >> That's what makes it tough. The kids will be the next adults with nothing >> solved. > > >Right, mostly because they live in contries with rather incompetent >government. But once you get correspondence going the chances improve >because now there can be some mentoring. Certainly government is at the root of the problem. >The best sort of mentoring is what some volunteer IEEE members do in >South America. There, lots of people die from lung diseases because they >read using kerosine lamps at night. So they install a few >solar-battery-LED thingamagics in the first 2-3 huts while some of the >more clever villagers look at how the work is done. Then, they hand the >toolbox and the materials for the next dozen huts to the villagers. But without food and clean water, reading is a luxury.
From: D Yuniskis on 19 May 2010 18:14 Joerg wrote: > D Yuniskis wrote: > >> OTOH, I subscribe to the philosophy I was taught in my language >> design class: programs should fit on a single sheet of paper. >> (of course, no one ever defined what a single sheet was...) > > For small projects of great complexity: > > http://behance.vo.llnwd.net/profiles3/93397/projects/183788/933971234687513.jpg Cool! There are some folks who actually do this academically! Sheesh! And I thought the Department of Alchemy was a boondoggle... > Else just order a roll, they come in sizes where you need a 30-ton > faltbed trailer. Technically that's all one sheet :-) Better yet, a mobius strip... (you never know when you've reached the "end of page") On a more serious note, I *do* find that adage to be very poignant. It seems like modules/functions/routines that get much bigger quickly become less productive to develop/maintain. I noticed that I have changed my coding style over the years to conserve vertical space for exactly this reason. :< Of course, coming up with design approaches that have just that right level of decomposition is the trick! Too "fine" and it becomes *equally* complex! :<
From: Joerg on 19 May 2010 18:38
krw(a)att.bizzzzzzzzzzzz wrote: > On Wed, 19 May 2010 06:32:57 -0700, Joerg <invalid(a)invalid.invalid> wrote: > [...] >> The best sort of mentoring is what some volunteer IEEE members do in >> South America. There, lots of people die from lung diseases because they >> read using kerosine lamps at night. So they install a few >> solar-battery-LED thingamagics in the first 2-3 huts while some of the >> more clever villagers look at how the work is done. Then, they hand the >> toolbox and the materials for the next dozen huts to the villagers. > > But without food and clean water, reading is a luxury. Oh, they do have that. Even cerveza, or probably chicha (in Quechua). Those people have lived there and farmed that sparse and rough terrain for hundreds of year, but now they want to afford their kids some education (or maybe have to). They really eke out a meager living, far from what we are used to. The son of a couple from our church was down there on a long term technical mission, building stuff etc. He said the utmost in delicatessen when there is a really important feast was cooked chicken feet. He really had to get used to some things there. It's just that there is no electricity within whole swaths of countryside. Not one lone powerline crossing the mountain ranges. So those smoke-belching lanterns are their only affordable option. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM. |