Slashdot Mirror


What If Your Electronic Parts Were More Like Legos? (electricdollarstore.com)

Long-time Slashdot reader beckman101 writes: This week Electric Dollar Store opened its doors, selling interchangeable postage-stamp sized I2C-based modules for prices between $1.00 and $1.80. The modules include lights, buzzers, counters and sensors — the range is aimed at electronic makers. These aren't manufacturing rejects shipping from Asia — they're assembled, tested and shipped from a small farming town in California, where winter labor is cheap.

All the code for the project is BSD licensed.

The project is a spin-off from the popular open-source I2CDriver hardware debugger.

98 comments

  1. Underfoot by diesel66 · · Score: 0

    It will hurt more when I step on them?

    --



    eleven plus two / twelve plus one
  2. Huh? by JBMcB · · Score: 4, Informative

    Little Bits:
    https://littlebits.com/

    Gakken EX:
    https://en.wikipedia.org/wiki/...

    Snap Circuits:
    https://www.elenco.com/brand/s...

    Then there are the domain specific building block electronics - Arduino shields, raspberry pi blocks, MakerBlocks, mBot modules...

    And, of course, all the modules for Mindstorms, both from LEGO and third-party.

    These look kind of neat, though. Price is right!

    --
    My Other Computer Is A Data General Nova III.
    1. Re:Huh? by smoot123 · · Score: 2

      Lectron. I had one of these as a kid. No where near as cool as an I2C setup.

    2. Re:Huh? by Anonymous Coward · · Score: 3, Interesting

      littleBits is a neat idea ruined by pricing. ( https://shop.littlebits.com/collections/bits ) $10 for an LED? $10 for an AND gate? $12 to split your wire? $12 for a buzzer?

      The pricing of these $1 to $2 parts seem more inline with reality, though they don't have many parts available, and they've made them so you need to solder them rather than making them easily snap together. They may be a bit easier to use than a plain chip, led, or pot, having a standard pin-out, and a flat board to sit on, but you, or your kids school, aren't going to let young kids handle a soldering iron.

      What the world needs, for education purposes, is something like littleBits (for part variety, and which can snap together), but priced like this (so you can build something without winning a lottery), and which can connect easily to a Pi, or ODroid, or Arduino (for when you want complexity that a CPU can deal with), and ideally parts would be available in 3.3 or 5v, or simply work for both.

    3. Re: Huh? by Anonymous Coward · · Score: 0

      If you don't understand then you may never understand

    4. Re:Huh? by AmiMoJo · · Score: 1

      These are a bit different because they require you to do a bit of soldering, and then write some code. More like Seeed Studio Grove or some of the Adafruit stuff.

      These kinds of things are actually quite useful for prototyping, not just for Arduino users.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    5. Re:Huh? by alvinrod · · Score: 1

      There was also Project Ara which aimed to bring the concept to cell phones. Google killed it off a while back though. That gives me a good enough understanding that I don't think the approach is anything that consumers really care about doing. It works okay in children's toy market or in the hobbyist community, but most consumers don't possess the time, knowledge, or desire to cobble together their devices from parts.

      At least it's a convenient place for people who do want stuff like this to shop. Sure there are plenty of other companies like CPC, Mouser, or Digi-Key that will probably sell you the same stuff, the selection here is a lot more limited and easier to get exactly what you want or need.

    6. Re:Huh? by serviscope_minor · · Score: 1

      These kinds of things are actually quite useful for prototyping, not just for Arduino users.

      Arduinos are useful for prototyping too. They're pretty popular with engineers who aren't neck deep in microcontrollers all the time, since they provide a cheap, well documented, easily sourced all in one devkit and programmer.

      --
      SJW n. One who posts facts.
    7. Re:Huh? by Anonymous Coward · · Score: 0

      Huzzah!

      Useful comments and links, just like it was when /. was young.

      Thanks to all those who are posting pertinent info, instead of banal opinions.

      Now, GTFOML!

    8. Re:Huh? by Darinbob · · Score: 1

      Yes, this seems to be about parts for experimentation, art, learning, etc. These aren't "professional" grade modules that you can use to create your own commercial project. Not that this is wrong, but the Slashdot headline seems a bit misleading.

    9. Re:Huh? by AmiMoJo · · Score: 1

      Whenever I use them I always use an external programmer and raw C for the ATmega though, because the Arduino IDE drives me nuts.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    10. Re:Huh? by PPH · · Score: 2

      they require you to do a bit of soldering

      Someone is going to get smart and add an option to order these with 0.1" pitch pins already attached.
      So we can plug them into a plugboard, just like the old DIP packages.
      SMD packaging sort of screwed up the "plug and jumper" method of prototyping.

      --
      Have gnu, will travel.
    11. Re:Huh? by serviscope_minor · · Score: 1

      Whenever I use them I always use an external programmer and raw C for the ATmega though, because the Arduino IDE drives me nuts.

      You can program it over the inbuilt USB programmer using avrdude, and I usually use that. For me it's a tradeoff between how complex the task is, how much control I need and the annoying IDE.

      I expect though you can find the headers and .a files and use the environment without the IDE.

      --
      SJW n. One who posts facts.
    12. Re:Huh? by serviscope_minor · · Score: 1

      SMD packaging sort of screwed up the "plug and jumper" method of prototyping.

      I still use it a fair bit. PDIP is still surprisingly availiable. For everything else, there are SMD breakout boards or failing that, deadbugging a chip into a DIP carrier of somesort works well enough.

      --
      SJW n. One who posts facts.
    13. Re:Huh? by AmiMoJo · · Score: 1

      Good point, I never thought of using avrdude. I see you can write Arduino code in Atmel Studio but I have not tried it.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    14. Re:Huh? by worf_mo · · Score: 1

      Via PlatformIO you can develop Arduino code in different IDEs. Either with their specific PlatformIO IDE (MIT licensed, based on Atom and Visual Studio Code), or with a number of supported desktop IDEs. I have developed various Arduino projects with CLion. Works nicely, has all the functionality I quite like in JetBrains' IDEs, and PlatformIO also has a very useful library manager.

      While some additional solutions are offered for a price under "PIO Plus", all "standard" PlatformIO offerings are free and open source.

    15. Re:Huh? by shess · · Score: 1

      Seeed Grove: http://wiki.seeedstudio.com/Gr...

      Sparkfun Qwiic: https://www.sparkfun.com/qwiic

      But it honestly looks a lot like Wemos shields, except as castellated PCBs. Which I think has potential for nice low-profile projects. Main problem is that we only need so many temperature sensors.

      I think the real killer is how often they'll end up needing to add a microcontroller or something to force a component into an i2c mold.

  3. My experience by fubarrr · · Score: 0, Redundant

    There is nothing making electronics manufacturing financially impossible in America, and manual labour costs are nowhere as important as some believe.

    In fact, there are major electronics makers even in Africa and Pakistan.

    America's problem there has nothing to do with costs, but spoiled silver spooned "business elites" who don't count anything, but money falling into their mouths by themselves "a good business case"

    1. Re:My experience by hirschma · · Score: 1

      Well, as someone that runs an electronics factory, I mostly agree with you.

      The first part is: what do you mean by "electronics"? Are you talking about PCBA (i.e, assembled/populated circuit boards), or do you mean "consumer electronics" - i.e., cell phones, AV receivers, computers, etc. etc.?

      For me, "electronics" means assembled circuit boards. And sadly, there is a surprising amount of labor involved. Kitting - getting components ready to be placed. Receiving materials, Shipping. Paperwork. Regulation compliance.

      That being said, most of this can be automated away. But today, largely, it is not that way. So the truth is that America _could_ be cost competitive, but today, is not.

      Hint: the entire American market for assembled circuit boards is for small-to-medium delivered quantities - almost always under 5000 units, typically under 500. Offshore is not competitive with smaller quantities, and that's why my industry is still a $60BN industry :)

    2. Re:My experience by fubarrr · · Score: 1

      I mean consumer electronics, and I am well aware of how much labour goes into such things - not too much. I can relate a bit to your experience, but what is "a lot of manual labour" in USA is still nothing really in comparison to industry standards.

      In CONSUMER electronics I deal with, the manufacturing itself takes much less time per units than testing/inspection/QA/binning/labelling/flashing/factory configuration/packaging. And we are also not dealing with particularly big batches, 10k unit runs usually, nor do we economise on labour, now re have an option to design stuff to minimise assembly costs (client orders)

      Even in such arrangement, all human labour barely makes even 20% of unit cost. Properly run manufacturing lines are amazingly efficient even without much automation. Running factories is pure management science - that is something what should really be done by all those MBAs.

      Salaries for professionally trained workers in China are not so far from USA. 15000 CNY is around 2200 USD. We can still hire complete random people at like $800, but we opt not to do so, because that does not pay off, simply. Yes, we have an option to hire people at 2.75 times lesser price, but we really don't care much about manual labour given how little it contributes to the final cost. To add to that, we only do 1.5 shifts - 12 work hours. Automated SMT lines work lights out 24/7.

      4 SMT lines are tendered by a single person
      Warehouse - 4 persons
      Line staff - 36 persons working in 1.5 shifts.
      Parts inventory - outside managed
      Security guard - contracted out to security company
      1 Janitor
      1 guy doing all office work - comes once a week, a contractor specialising in that kind of business

      And this is only a kind of prototyping business. We cam make like 2000 units of really unwieldy, bulky things like toys a day, or 5000 units of "optimised for manufacturing" gadgets (snap assemblies).

    3. Re:My experience by serviscope_minor · · Score: 1

      There is nothing making electronics manufacturing financially impossible in America, and manual labour costs are nowhere as important as some believe.

      Depends on what. What you can't get manufactured in the US is the bottom of the bin, razor thin margins, low quality stuff. You need easy access to the Shenzen market of super low quality components for that, with ready substitutions and even re-used parts at times.

      If your part is very labour intensive to make that doesn't help either.

      If there's some kind of reasonable margin and then yes you can (and I have). It wasn't complex from a manufacturing point of view: all surface mount, almost all parts on one side and I took care with the DMF to minimize the amount of hand work needed.

      What can be profitably manufactured in the US is maybe a smaller subset of what can be profitably manufactured in China. But if you've got any certification, quality tracking stuff then it's one hell of a lot easier to get it done in the US. You'd need immense volume before the cost of the effort to do all of that in China was exceeded by the difference in margins.

      --
      SJW n. One who posts facts.
    4. Re:My experience by Darinbob · · Score: 1

      I deal with non-consumer stuff. Contract manufacturers are still used much of the time for convenience and cost. They can be set up to have orders shipped directly from factory to the customer. Onshore manufacturing is good for prototypes, test runs, getting the kinks worked out, or final assemblies (for more complicated stuff). Much of the cost comes from testing the products during manufacture since they're being sold to more discerning customers and failures means more cost to us in the long run.

      Salaries is mostly about personnel to set up and monitor the production lines, once it's ready to go most manufacturing is not labor intensive. Almost none of this is like the old assembly lines from the past. Some bits may need humans (attaching antennas, plugging in cables, etc) but that's for final product and not the bare boards.

  4. Lego* by Anonymous Coward · · Score: 3, Informative

    The plural of Lego is Lego.

    1. Re:Lego* by Anonymous Coward · · Score: 0

      The plural of Lego is Lego.

      According to whom?

      I've always used "legos" as the plural, e.g. when telling my kids to put them away.

    2. Re:Lego* by Anonymous Coward · · Score: 0

      The plural of Lego is Lego.

      Since Lego is a brand name, the correct plural is "Lego brand building blocks".

      It is never correct to use a brand name ad a noun or verb.

    3. Re:Lego* by theNetImp · · Score: 0

      yeah, fuck off everyone child I know calls them legos, every parent I know calls them legos, you're just being a douchenozzle.

    4. Re:Lego* by theNetImp · · Score: 2

      "every child I know".... *sigh*

    5. Re: Lego* by Anonymous Coward · · Score: 0

      You Google'd that, right.

    6. Re:Lego* by Anonymous Coward · · Score: 1

      So you always say "iPhone phones" rather than "iPhones", right?

      We've always pluralized brand names when it made sense to do so and we always will, no matter how pedantically you try to correct everyone else.

      English is a living language, not a dead one. The difference is that proper usage is not set in stone. If the majority of people use the language in a way that breaks a previous rule, the new usage becomes the rule.

    7. Re: Lego* by Anonymous Coward · · Score: 0

      Apples and oranges!

    8. Re:Lego* by serviscope_minor · · Score: 2

      Everyone I know pluralizes it as "lego". Having an "s" on the end makes it sound as weird as "sheeps" or "pantses".

      --
      SJW n. One who posts facts.
    9. Re:Lego* by drinkypoo · · Score: 1

      I'm gonna concur with GP poster here. I grew up calling them legos, among kids who called them legos, and I don't care what Interlego AG or whatever they're called these days wants us to call them. I don't get offended by people who insist on calling them Lego, unless they get all snippy with me — and then it's not with their choice of word, but with the snippyness.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    10. Re:Lego* by anarcobra · · Score: 2

      I'm going to disagree.
      Growing up I called them lego, my parent's called them lego, everyone I knew called them lego.
      Legos sounds stupid, like "meccanos" or "sheeps."
      That said, I don't care if other people sounds stupid, so go ahead and call them what you want.

    11. Re:Lego* by drinkypoo · · Score: 1

      Legos sounds stupid, like "meccanos" or "sheeps."

      Or "maths"

      See, it's totally subjective, and has to do with what you're used to. Calling it "Lego" means you're playing with BRANDNAME. But calling it "Legos" means you are playing with BRANDNAME bricks. Personally, I don't play with a brand, I play with its products.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    12. Re: Lego* by Anonymous Coward · · Score: 0

      The fact that a product is known exclusively by its brand or manufacturer is one of the best indicators of success. Even Megablocks are called Legos.

    13. Re:Lego* by AmiMoJo · · Score: 2

      Maybe some people used to play in a sands pit with their waters pistol.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    14. Re:Lego* by TechyImmigrant · · Score: 4, Interesting

      The plural of Lego is Lego.

      According to whom?

      I've always used "legos" as the plural, e.g. when telling my kids to put them away.

      This behaviour seems limited to the USA. Lego the corporation wants you to protect their brand for them by calling them 'Lego brand building blocks' but everyone else in the English speaking world, outside the US calls many lego 'lego'. In Denmark the plural form is noun-er, but for lego they call it it 'lego'.

      --
      I should use this sig to advertise my book ISBN-13 : 978-1501515132.
    15. Re:Lego* by BenFenner · · Score: 2

      According to LEGO themselves, common decency, and common English grammar.

      LEGO is both singular and plural, like sheep, or sushi, or Kleenex (if you want another good brand name to compare to).

      I have a pack of LEGO, that my herd of sheep carry, while I feed them sushi and hand out Kleenex. This isn't rocket surgery.

    16. Re:Lego* by VanessaE · · Score: 1

      According to LEGO: https://i.stack.imgur.com/tdPK...

      (lower right corner of the image; I've seen a few of these in my sets, over the years)

    17. Re: Lego* by Type44Q · · Score: 1

      Sure, in some other fucking language.

    18. Re: Lego* by Anonymous Coward · · Score: 0

      ...known as English.

    19. Re:Lego* by Anonymous Coward · · Score: 0

      Serious? I've never heard of a place where people have that quirk. Where do you live?

    20. Re:Lego* by DNS-and-BIND · · Score: 1

      What is the deal with people bowing down to show obedience to a major corporation's preferred nomenclature? We'll call them whatever we damn well please. Is this due to the gender confusion thing? Fuck what people think.

      --
      Shutting down free speech with violence isn't fighting fascism. It IS fascism!
    21. Re:Lego* by Aristos+Mazer · · Score: 1

      When you're dealing with a trademark, there's a legal issue involved. Published for-pay articles can face lawsuits for failure to use trademarks according to the grammar specified by the trademark. So if you're someone who makes money off of publishing articles, you kind of have to care, especially for the big brands. Johnson & Johnson is particularly litigious about anyone using "Band-Aid" as an adjective for other things (such as "That patch is just a Band-Aid solution, not a real fix.").

    22. Re:Lego* by Anonymous Coward · · Score: 0

      Legos sounds like a Greek island, possibly inundated with plastic pollution.

      Or a Sindarin Elf of the Woodland Realm.

    23. Re:Lego* by twosat · · Score: 1

      I think that the point is that a Lego set is made up of many loose parts whereas an iPhone is a single item.

    24. Re:Lego* by No+Longer+an+AC · · Score: 1

      The same people who did maths in school?

      I called them Legos as a kid. It's a hard habit to break.

      And I just really want to say...
      Leggo my Eggo!

    25. Re:Lego* by AmiMoJo · · Score: 1

      Maths makes sense because it is an abbreviation of mathematics, which also ends in an 's'. In fact there is no such word as "mathematic".

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    26. Re:Lego* by Anonymous Coward · · Score: 0

      You forgot the (tm) in your Post there Ben. How many LEGO Brand Building Blocks do you own?

      Everyone I know, in Europe and the US (at least French native english speakers and dutch) call it Legos with an s to make it plural.

      Who gives a shit what multi-billion dollar monopolistic corporation wants you to gramatiically refer to their product (to increase brand recognition no less).

    27. Re:Lego* by Anonymous Coward · · Score: 0

      lego rocks!

    28. Re:Lego* by gmiller123456 · · Score: 1

      It used to be that if you went to legos.com you got redirected to an explanation of this. It seems to have gone away, but the Wayback Machine still has it.

      https://web.archive.org/web/20...

    29. Re:Lego* by No+Longer+an+AC · · Score: 1

      Okay, it just doesn't sound right to my American ears just like Lego as a plural doesn't.

      Other nouns that are the same in singular and plural are okay, like "moose" and "aircraft". I just never took a "maths" class. I took lots of math classes though.

      This song just popped into my head:

      Mos Def - Mathematics

    30. Re:Lego* by twosat · · Score: 1

      I work in a library in New Zealand which has a childrens' area with "Lego pits" for children to play with Lego bricks. I asked the librarians, and the volunteers who supervise the Lego pits if anyone called them "Legos". Their response was in the negative, with a volunteer supervisor saying "It's a North American thing"

    31. Re:Lego* by Areyoukiddingme · · Score: 1

      Legos sounds stupid, like "meccanos" or "sheeps."

      Or "maths"

      "Maths" sounds stupid because it's objectively wrong. The 's' in mathematics is the nominative 's', not the plural 's'. Attempting to abbreviate the word as if it were plural is simply incorrect English.

  5. We used to be closer to this dream. by Anonymous Coward · · Score: 1

    We already imagined that as kids in the 80s.
    I'm certain, our grandparents did too, on their first mainframe/supercomputer.

    And back then, for most parts, they were! Backplane, bus, cards for anything, peripherals for anything else.

    The thing is, that integrating ALL the things and disabling what you don't need just became cheaper.
    But it quickly became a trap too, since the buses and modularity were done away with too! So you could not even do it if you wanted!

    I still imagine a backplane-like system with cards emerging out of the Raspberry Pi headers and stacking shields.
    And a similar back-"spine" system for mobile phone sized devices, where the bus is in the center and it's like a ribcage where you snap in the modules, and close the lid/battery/display/keyboard back side.

    My point is: Ee dreamt about this for a long time, but until now, for-profit lock-in and cheap mass-manufacturing always prevented it.
    So unless you have a novel was to counter those underlying problems... no dice.

    1. Re:We used to be closer to this dream. by Anonymous Coward · · Score: 0

      You need to catch up. Cheap mass-manufacturing hasn't prevented us from having easy to configure circuitry. In fact, the development of FPGAs has made it possible to create and test extremely complex circuits easily and quickly.

    2. Re:We used to be closer to this dream. by Anonymous Coward · · Score: 0

      Well, that's basically what the compute module is. All that is needed is to pull all the redundant "system" pieces out of the SOC and put them on the I/O board and a decent system bus for intercom. Not really a hobbyist grade project, but shouldn't be too hard to do.

    3. Re:We used to be closer to this dream. by Darinbob · · Score: 1

      The dream is bad though. Already I see hardware designers who treat things like legos, and it fails. You fall into a trap of thinking that everything is commutative; part A is good and part B is good therefore I assume that A+B is also good. There's pressure to speed up testing and validation and that encourages the quick and dirty approach so that the final products is.. well.. quick and dirty. Often things are fixed by by other quick hacks, if the fundamental problem lies with the board layout there's pressure to leave that alone and only tweak component values, snap on some ferrites, etc.

      Electronics is already like Lego, except that the Lego piece is the individual components (capacitors, resistors, ICs). Trying to turn collections of pieces as a single Lego piece causes things to be brittle, just like any large Lego construct.

  6. 16 products, needs better modular system by Anonymous Coward · · Score: 0

    I like the idea and what the store has to offer so far but there are only 16 products. Come back when you have hundreds. Most of the sensors are I2C which is awesome for Arduino. Your boards are all simply the same size, they do not physically connect like legos or have any system of interconnect other than using solder and pins which makes it no better than breadboarding. Calling them electronic legos is going way too far. Look into using pogo headers or magnetic snap together modules. The intention of a modular IC system has been done before and done better. I want to say it was Google Learn that had a good system of modular snap together boards for educators in school systems. Using a breadboard and dupont wires looks easier than using your system. Please don't take this as all negative, there is obviously a flaw in your system when using breadboard and dupont wires seems more appealing for fast prototyping. Your modular system needs more thought put into it. I do like the square form factor of the boards, they are nice size that you can stuff more advanced components onto in the future like a tiny audio amp, battery charger, or LED driver. Web store is nice, congrats on getting that up and running. It's a start!

    1. Re:16 products, needs better modular system by Megane · · Score: 1

      So how do they handle address conflicts? I've been a dev on a highly I2C'ed system, and while there are also electrical issues to having lots of devices, the big one is how you set an address. Most chips only have two or three address select pins, if that many. Even if you use a microprocessor as the slave device, there still needs to be a way to configure it. About the only truly reliable way for a hobby-brick system is gating SCL for each device.

      --
      #naabhaprzrag, #sverubfr-000, #agi-fcbafberq, negvpyr[pynff*=' negvpyr-ary-'] { qvfcynl: abar !vzcbegnag; }
  7. Where are the better ones though? by Anonymous Coward · · Score: 0

    Like processors and main memory ones.

    Ald if they are all the same size, where are the ready-made cases? (Modules with external interfaces should have a faceplate included.)

    That's what I would have started with.

    I guess they are trying to be a cheaper Arduino store. As it's not funny if the stupid CO2 or oxygen sensor for your $5 computer costs more than $50.

  8. Will the real EDS please stand up by Anonymous Coward · · Score: 0

    I mean, these guys won't be about writing EDS on PCBs for long - not once the real big 'EDS' coughs a few lawyers in their direction.

    Clearly didn't research trademarks. Clearly relying on a shit PCB autorouter.

    Good idea though, badly implemented.

  9. looks pretty neat by serviscope_minor · · Score: 1

    These look pretty neat. Probably worth having a bunch kicking around to save on a lot of faff for the odd one of and/or experiment. Much like arduinos. I probably won't get many though since for my hobby electronics I like doing things by hand, especially doing analogue things. But I only like doing the bits I find personally interesting by hand.

    I expect we'll get some people ragging on makers inn this thread though because we always get that, especially arduinos.

    --
    SJW n. One who posts facts.
  10. Re: But I like that! by Anonymous Coward · · Score: 0

    Did the lack of anything damning in the Mueller report lead you down that path?

  11. I'm getting old by thegarbz · · Score: 1

    So I'm greatful a website finally caters to me by presenting a title and menu that is 15cm high on my screen and scales all normal text to size 32. You know ... because I read Slashdot from the other side of the room and all.

    1. Re:I'm getting old by Anonymous Coward · · Score: 0

      I *AM* old but my title is ~2cm? WTF, get a real browser or learn how to computer better instead of whinging about problems you'd find easy to resolve it you had a brain in your head.

  12. Marketing department discovers i2c by Anonymous Coward · · Score: 0

    Suddenly IC's are lego bricks, in revolutionary marketing-copy strategy.

  13. Let's pair them up with the new NVIDIA Jetson Nano by Tangential · · Score: 1

    Combining all of these sensor capabilities with a 128 core Jetson Nano should offer some interesting monitoring opportunities.

    It would be really awesome to build a community around this.

    --
    Suppose you were an idiot. And suppose you were a member of congress. But then I repeat myself. -- Mark Twain
  14. $10 LED by Anonymous Coward · · Score: 0

    Holy hell, I thought you were exaggerating... https://shop.littlebits.com/collections/bits/products/bright-led

    1. Re:$10 LED by Anonymous Coward · · Score: 0

      Holy hell, I thought you were exaggerating... https://shop.littlebits.com/co...

      LED bare die: $0.001-0.002 for the bare die. Minimum order quanty: a billion or two. LED you can actually use: $0.02-$0.10 for something with two leads and some plastic in a recognizable form factor: Someone made a billion dies and we put millions of them into forms that can actually be soldered to a circuit board. MInimum order quantity: 10-100. If you only want one or two, the price might go up to $1.00 because someone/something has to put it in a little baggie and mail it to you, and they need to eat, and the machine has to be maintained.. Electric dollar store LED: You're paying $1.00 for a $0.10 LED and a $0.05 piece of perfboard -- because the EDS has already paid $6000 ($1000 worth of LEDs and $5000 worth of perfboard to be mass printed, presoldered, and laser-sliced into little bits using the same production processes that the entire industry has used for 50 years.) If you wanted to build one of these yourself, you could also pay $50 for a parts house to stop whatever they're doing, import your file into their workflow, and have their robots build you one and ship it to you. Both are fantastic wins for the hobbyist market, but those markets are pretty small compared to the entire kickstarter/small business market. Littlebits LED: You're paying $10.00 for an LED because everything about their package is custom. It's actually a pretty neat solution, but it solves a problem most of the industry doesn't have: how to make things just snap together without soldering. That's a fantastic win for the educational market, but that market's pretty small compared to even the hobbyist market.

    2. Re: $10 LED by Anonymous Coward · · Score: 0

      I invested about $300 in LittleBits for my daughter before realizing that for $300 what we had was just too simple and obvious to hold her interest. We would have to spend another $400 before we had enough to make it interesting.

      We have a FormLabs Form 2 at home. So, we made our own bits. It ended up, LittleBits got boring fast and making things with the 3D printer was what was fun instead.

      Now sheâ(TM)s 15 and will spend today in a machine shop CNC milling steel and using a brake to fold it.

      We design some PCBs and have them being made in Germany and we will use a pick and place with X-ray assistance and a new convection reflow oven when we get the boards.

      LittleBits kinda failed us

    3. Re: $10 LED by Anonymous Coward · · Score: 0

      > LittleBits kinda failed us

      Yeah, but it sounds like she won the parent lottery so I think she'll be okay. :)

  15. Re:But I like that! by Anonymous Coward · · Score: 1

    having a huge tunnel up my ass

    I'm on it.

    Sincerely,

    Elon Musk
    Boring Co.

  16. Re: But I like that! by Anonymous Coward · · Score: 0

    It has resulted in trials and prison sentences left right and center, it's being kept secret and you think there wasn't anything damning? How's the weather under the Trump ass? I bet it stinks, but you like it.

  17. QFNs and BGAs are a pain by ickleberry · · Score: 1

    If you are trying to solder stuff yourself at home. It would make life a whole lot easier for me if certain IC's were available as SOIC or PDIP even. Hard enough to get the damn things working at times without having to check under a microscope to make sure you soldered the damn thing right.

    1. Re:QFNs and BGAs are a pain by Rick+Schumann · · Score: 1

      For all intents and purposes, BGA packaged ICs are completely out of reach of the hobbyist, because you need specialized equipment to install them, and you literally get one shot at it: if even one solder bump doesn't make contact, or if even one solder bridge occurs between bumps, then you're screwed. Remember that in a production environment you need a hideously expensive Xray machine to even have a chance to QC a BGA's attachment to the PCB, and even that's not 100% reliable, you'd need something more like an MRI scan, that's 3D, to have a full picture of the BGA-to-PCB attachment. I'm with you though so many surface-mount components have more or less destroyed electronics as a hobby due to this inaccessiblity problem; it also has ruined it for repair purposes due to the expensive equipment and specialized training necessary.

    2. Re:QFNs and BGAs are a pain by serviscope_minor · · Score: 1

      I've not done any BGAs at home, but I've certainly done small QFNs and LGAs due to that being the only option for some packages. Yep, more of a pain than SOIC and certainly PDIP, but they're not that bad when you get used to them.

      My personal tips are:

      Use stencils for applying solder paste. They're inexpensive (you can even get ones cut out of plastic) and make life much easier.

      Make sure you make your board with tooling holes (a pair of 4mm holes in one side) and have corresponding holes in your stencil. I use 4mm silver steel tooling pins to do the alignment. I drill holes into a block of old MDF I have lying around with a hand-held power drill (that's precise enough with a steady hand), but you can also buy pre-drilled tooling rigs.

      Have a good supply of IPA or acetone for wiping off the solder pasted when you screw up. If in doubt wipe it off and re-apply.

      And don't use old solder paste. It has a shelf life once opened, and you can get really crappy results if you use old paste.

      With QFN the metallisation goes up to the edge and I've seen people have great success hand soldering those things. Also, I've successfully reworked both QFN and LGA parts. I basically tinned the ads on the board and the chip (fiddly but not too bad), put it down carefully then hit it with a heat gun. You could do that for first time assembly too, but it seems more work than stencilling.

      If there's a chip I want to check out and don't want to make a board for I deadbug it on to a DIP carrier and breadboard it. I've successfully deadbugged a number of 0.5mm pitch QFNs.

      --
      SJW n. One who posts facts.
  18. only 30 years late by Anonymous Coward · · Score: 0

    electronics is not so hardware oriented anymore
    simply because anything done by specific hardware in the past has been sucked into your phone or simply obsolete

  19. Prices good selection bad by Anonymous Coward · · Score: 0

    I tend to go adafruit for stuff like this, they have way way way more selection. I picked up a GPS that is on a board that talks over RS232. Hooked right up to my pi. There are others as well, like digikey etc for practically any part you need, just not presoldered. For hobbyists, I'd say the biggest problem are SMC's. They are less expensive but require much higher skill levels and equip.

  20. The 'dumbing down' of electronics as a hobby? by Rick+Schumann · · Score: 2

    I'm conflicted. On the one hand, things like this (and Arduino, and RPi, and so on) make things more accessible to the 'masses' -- but on the other hand, it seems like it's 'dumbing down electronics', taking away any requirement that you actually learn how electronics works at the component level.
    I can't easily count how many people (probably teenagers, really; this is the internet, who can tell?) were spending inordinate amounts of time just getting an Arduino (or similar microcontroller-based toy) to make an LED blink, or something similar, and they would talk about how they were 'doing electronics'; contradict them, and with a straight face, not kidding with you, would claim that "if it doesn't use a microcontroller, it's not electronics", and how 'analog electronics is old fashioned and obsolete, no one uses that stuff anymore'. I kid you not. Meanwhile they'd need an Instructible and a YouTube how-to video to build a basic crystal radio, and they'd be utterly clueless as to how it works -- assuming that is you could convince them that it would even work and that you weren't trying to troll them (less than half a dozen parts and no microcontroller? How does it do anything?).

    Someone else mentioned 'Lectron', from back in the 1980's; my brother had some of those, although I was never allowed to mess with them. Some might argue those were on the same level as what we're discussing here, but the fact of the matter is, those were just 'sanitized' versions of discrete components, eliminating the need for soldering or any sort of solderless breadboarding, you still had to understand electronics enough to make something work.

    1. Re:The 'dumbing down' of electronics as a hobby? by Darinbob · · Score: 1

      I do remember in high school that I had some interesting electronics kits. But I did NOT really understand how they worked. I couldn't get stuff to work without following directions. The fundamental flaw with these kits is that you need to understand some higher level math for anything complicated (ie, calculus, linear algebra, etc). Digital electronics on the other hand is much easier to grasp if you don't know anything beyond arithmetic, geometry, and algebra; but even that can become a problem if you start running across having to deal with noise, impedance matching, etc.

    2. Re:The 'dumbing down' of electronics as a hobby? by Anonymous Coward · · Score: 0

      I would probably worry less about getting hipster "makers" to take a real interest in the hobby, and more about getting them to dispose of their "broken" toys responsibly and in a manner that makes them cheaply available to people who can fix them in moments because they actually know what they're doing.

    3. Re:The 'dumbing down' of electronics as a hobby? by Rick+Schumann · · Score: 1

      Here's a radical idea: how about people actually LEARN THINGS instead of expecting everything to be spoon-fed to them? I'm not directing that at you by the way I'd directing it at what appears to be an entire generation that can't be bothered to sit still long enough to learn actual electronics.

    4. Re:The 'dumbing down' of electronics as a hobby? by az-saguaro · · Score: 1

      I share your sentiments, but there is a flip side argument. There are only so many hours in a day, so you have to pick and choose your projects and interests. If you are intrigued by radio or interfacing, you might mess around with analog and op amps. If your project involves bandwidth and remote data and IoT, then digital blocks are your bricks and mortar. Even if you had robust experience with electronic basics, your interests might migrate to other areas, or the necessities of a job might lock you in to what ever the project demands.

      The complaint can extend to other scenarios. Do you program in C++ or Python, and if so, why not assembler or raw machine language? Are you an analog signal processing dude, and if so, why not make your own op amps from discretes, or use tubes? Are you a down deep digital designer, and if so why use asics when you can use 7400 chips, or better yet, buy a million transistors to make your own logic arrays.

      The nice thing about so many options is that there is something for every taste, interest, experience, budget, and time available. Commendable projects can come from any of them. And if they get some young kids hooked on the idea, so much the better, they can grow from there. It used to be that you learned radio first then graduated to digital. Now, it goes the other way - still all good.

  21. how are these like legos by Anonymous Coward · · Score: 0

    It looks like these are circuit boards that require soldering.

    How is that anything like legos? Or, more like legos than any of the other bazallion circuit board modules being sold?

    Legos are legos cause they don't require tools, are semi-permanent (easily reconfigurable), and structually similar so their possible configurations are exponential.

    These might meet the 3rd. Looks like they all follow 4 wire interface, providing exponential combinations. But really what makes lego is having all three "lego pillars". Many things have 1 or 2 of them.

  22. If they were more like LEGO... by Travelsonic · · Score: 1

    ... would they hurt like hell if you stepped on them by accident?

    --
    If you believe in privacy, and believe you have "nothing to hide" at the same time, you're a goddammed idiot
    1. Re:If they were more like LEGO... by Required+Snark · · Score: 1

      It will only cost you a couple of bucks to find out. Go for it!

      --
      Why is Snark Required?
  23. Parts are cheap but imagination is hard by Slugster · · Score: 4, Interesting

    The problem today with having digital electronics as a hobby is not hardware-related, it's simply thinking up useful things to do. How many times have you seen someone ask "I got this Arduino/Rasberry Pi (as a gift, in a contest, some other way), what can I do with it?"... If you can buy from China sources, the prices of most common components is very very inexpensive. Chinese Arduino clones cost $2-$3, and for just a few dollars more you can get boards with other processors that are much faster and have more memory--assuming you write a program that needs either of those things. Display screens cost $3, basic GPS chips cost $1, various wifi/wireless chips cost $3, CCD cameras cost $3, laser rangefinders cost $8, a cell phone radio (requires a SIM) costs $8.

    I do think that the main reason for the popularity of Arduino is that both the hardware and the software were made specifically to be easy to use.
    Interest/sales of a given processor or IC tend to pick up a lot after there is an Arduino IDE board definition or library for it.
    I suspect that people assume that if they cannot get the "professional" dev environment to work, they assume they can still get it to work in the Arduino IDE.

  24. Political prisoners by Anonymous Coward · · Score: 0

    No, it didn't. Anyone can be imprisoned with a subpoena trap. When you're selected for punishment, everything you say will be twisted to be a lie. But don't worry, the NY Times told you they were all horrible people... The same organization pushing Chinese propaganda so arrogantly that they have pinyin characters in the front page.

    1. Re:Political prisoners by buck-yar · · Score: 0

      Biggest fake witch hunt in American history. Only bigger embarrassment is all the idiots who parroted it like mind numbed robots.

  25. Re: But I like that! by kenh · · Score: 0, Offtopic

    Of the thirty-some indictments, a few resulted in guilty pleas, a few folks have been sentenced to prison, for crimes ranging from process crimes (lying to an investigator about a meeting the investigator has a transcript of, for example) or cheating on your taxes years before the election, and over two dozen "never gonna result in convictions" charges against Russians that spewed misinformation on the internet.

    Wow. Don't see any collusion. Don't see Obstruction of Justice.

    Democrats think meeting with a woman that offers opposition research on Hillary is collusion with a foreign state, yet see no issue with funneling campaign money to a law firm, mis-reporting that payment as for "legal advice", and having the lawyers hire a research firm, which in-turn hires a former foreign intelligence officer who in-turn meets with and pays officials in the Kremlin for opposition research on Hillary's opponent Trump.

    Apparently opposition research from foreign sources is only illegal if they offer it for free - by paying for it, it suddenly becomes "OK".

    Got it.

    --
    Ken
  26. Since 1967 by Bruce+Perens · · Score: 1

    Don't forget the Lectron blocks.

  27. It's Lego not Legos! by Anonymous Coward · · Score: 0

    Get the bloody spelling right!

  28. Target audience? by Anonymous Coward · · Score: 0

    After visiting the site I'm not sure who these are targeted to. They are far too simplistic for the average electronics enthusiast and, in my opinion, a bit too complex for the novice. The soldering aspect is odd for a product targeted to beginners, especially tiny 4.7k surface mount resistors.

    When I was a kid I begged for every one of the electronics kits Radio Shack sold in the 80's. My favorite, of course, was the 300-in-1 kit with so many items to play with. The spring clips used on these kits made wiring the parts together a breeze. Perhaps this product would be more suited to something similar.

    I love the idea of electronic kits to teach young minds. The Radio Shack kits eventually led me to a career in aviation electronics and later into the IT field. While others were struggling to learn transistor theory in school I had already mastered it thanks to these kits. It's awesome to see companies keeping this spirit alive.

  29. Even back in the 80's... by Temkin · · Score: 1

    They've always been like Legos! Even back in the late 70's / early 80's... Yeah, you may have had some pull up resistors, or other crappy discrete glue, analog/linear bullshit in between something, but...

    Now get off my lawn!

  30. My electronic parts? by Baleet · · Score: 1

    I have none that I know of--yet, but when I do I hope I don't find them by stepping on them like Lego.

  31. lego by Anonymous Coward · · Score: 0

    lego rocks!