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Scientist Shrinks Arduino To Size Of An AA Battery (techcrunch.com)

An anonymous reader writes: Johan Kanflo has managed to make the already small Tiny328 Arduino clone into an even smaller computing platform about the size of a single AA battery. Not only will it fit in a typical AA battery holder, but it will actually draw power from the batteries beside it as it's wired in "backwards" (with the + and - poles reversed). The Arduino platform consists of open-source hardware, open-source software, and microcontroller-based kits, making it easy to (re)program the processors, and develop software for hardware applications using a java-clone and an easy-to-learn IDE. For those interested in the AAduino, Johan has made his creation available online on Github with instructions and schematics to build your own.

47 comments

  1. The perfect spy-device by nospam007 · · Score: 4, Interesting

    Just put one in any other the target appliances and listen to everything. (until the batteries die and the device gets thrown out with them obviously. :-)

    1. Re:The perfect spy-device by Zero__Kelvin · · Score: 1

      So your plan is to provide about a volt and a half less potential energy while concurrently (excuse the pun) drawing measurably more current? You might want to learn about Ohms law. Also, you are trying to put an Arduino in series with the device being powered by the batteries. See also Kirchoff's work.

      TLDR: No. Just NO.

      --
      Guns don't kill people; Physics kills people! - John Lithgow as Dick Solomon on Third Rock From The Sun
  2. Intelligent Vibrators? by BigU+03C0in · · Score: 5, Interesting

    I can only imagine...

    1. Re:Intelligent Vibrators? by baker_tony · · Score: 4, Funny

      With the size of the batteries a decent vibrator takes, you can fit in a full water cooled i7.

    2. Re:Intelligent Vibrators? by Anonymous Coward · · Score: 0

      You like them dragon-sized, don't you?

    3. Re:Intelligent Vibrators? by Anonymous Coward · · Score: 1

      The only decently powered vibrators don't use batteries but have a cord to the wall outlet. Not that I would know anything about that...

    4. Re: Intelligent Vibrators? by Type44Q · · Score: 2

      I wonder how long it'll be before people start trying to maximize how much processing power they can fit in their ass...

    5. Re: Intelligent Vibrators? by Type44Q · · Score: 1

      So you're not the guy who ordered "The Jackhammer" (3-phase 220v) off of Amazon?

    6. Re: Intelligent Vibrators? by WarJolt · · Score: 1

      An arduino is boring without IoT. Are those wifi antennas or are you just happy to see me?

    7. Re: Intelligent Vibrators? by Anonymous Coward · · Score: 0

      Don't be silly.

      Only perverts order it off Amazon.

    8. Re:Intelligent Vibrators? by thegarbz · · Score: 1

      Batteries? The best sex toys are 110V

      Incidentally this is the first result when I type magic wand into Google.

  3. Backwards? by Anonymous Coward · · Score: 1

    That doesn't sound right - surely you would want to keep polarity the same, the arduino becomes a voltage sink instead of source but the polarity doesn't change.

    1. Re:Backwards? by intermelt · · Score: 1

      It is not connected backwards it is "labeled" as if it were a battery in series with the other batteries.

  4. Im a Scientist Mom! by tom229 · · Score: 1

    Cool, but not that impressive. My arduino is the size of an ATMega328, with the Arduino bootloader installed on it. There's nothing extraordinary being done here. You take a ATMega328, and solder it into a PCB with the smallest components you can find and you get to be called a "Scientist"? Score!

    --
    If it ain't broke, don't fix it.
    1. Re:Im a Scientist Mom! by Mr+D+from+63 · · Score: 1

      Agree, no scientists needed to create this. Just a designer and/or engineer. Or like you say, hobbyist. Don't know why scientists always get credit.

    2. Re:Im a Scientist Mom! by Anonymous Coward · · Score: 1

      It may not be that impressive, but at least he isn't aiming the shrink ray at his kids this time.

    3. Re: Im a Scientist Mom! by Type44Q · · Score: 2

      Don't know why scientists always get credit.

      It's simply 'cause they always get the hot chicks.

    4. Re: Im a Scientist Mom! by Mr+D+from+63 · · Score: 1

      Don't know why scientists always get credit.

      It's simply 'cause they always get the hot chicks.

      Or is it the other way around?

    5. Re:Im a Scientist Mom! by Darinbob · · Score: 1

      Not impressive at all though. First it's an arduino, dumbed down for EE people who don't like to program and CS people who don't like to solder. It's essentially just an introductory system for learning with really good marketing. Many professional systems designed for people make professional products are smaller. Now make it run from a coin cell while being smaller than the coin cell itself while having a radio talking IPv6.

    6. Re: Im a Scientist Mom! by PPH · · Score: 1
      --
      Have gnu, will travel.
    7. Re: Im a Scientist Mom! by BigU+03C0in · · Score: 1

      I would mod you up for that, but I already posted.

    8. Re:Im a Scientist Mom! by goose-incarnated · · Score: 1

      Cool, but not that impressive. My arduino is the size of an ATMega328, with the Arduino bootloader installed on it. There's nothing extraordinary being done here. You take a ATMega328, and solder it into a PCB with the smallest components you can find and you get to be called a "Scientist"? Score!

      Many of the "scientists" that are referenced by slashdot posters are merely social studies coasters, and much of the "science" consists of starting with a hypothesis and cherry-picking results for support. This is actually an improvement - at least they don't pretend it is science.

      --
      I'm a minority race. Save your vitriol for white people.
    9. Re: Im a Scientist Mom! by Coren22 · · Score: 1

      Don't know why chicks always get credit.

      It's simply 'cause they always get the hot scientists.

      Or is it the other way around?

      Hmm...no...don't think so.

      --
      APK likes to ask for responses to the same things over and over. Maybe he just likes the responses?
  5. Re:Im a Scientist Mom! (Not an Engineer) by leftover · · Score: 2, Insightful

    Really none too impressive. Off-the-shelf devices include this
    https://tinycircuits.com/colle...

    --
    Bent, folded, spindled, and mutilated.
  6. Not without some easier IO.. by thesupraman · · Score: 2

    So, it makes connecting power marginally 'easier' if you happen to have a suitable 3 cell holder.
    And makes IO significantly more difficult?
    IO is generally the whole point of microcontrollers - he has included a nonstandard Wireless interface, and a couple of temperature
    sensors, so it appears to have perhaps one purpose, but is kind of overkill for that (an esp8266 would be far easier).

    Progress!

    1. Re:Not without some easier IO.. by Sloppy · · Score: 2

      I think the point of the RFM69 hardware is to use less power (and also get more range!). Wifi might be "standard" but not necessarily the right tool for the job. It's not that hard to have another little "gateway" arduino-like with same kind of radio -- listening, powered by and communicating over USB to a "real computer."

      --
      As copyright owner of this comment, I authorize everyone to defeat any technological measure which limits access to it.
  7. Old Mag Lite "Hack" by NotAPK · · Score: 1

    From TFA: "Elegant, cool and not something I’ve seen done before."

    This was a common way to convert an old incandescent mini "Mag Lite" to an LED torch. The idea was to replace the bulb (obviously) but to also replace one of the AA batteries with a driver board that would generate a high frequency signal to drive the LED as hard as possible. This was back in the day (15 years ago) when LEDS were still very new and the white ones weren't anywhere near as good as the modern CREE units.

  8. Eagles and Gerbers by Fnord666 · · Score: 2

    If anyone is interested the Eagle and Gerber files are downloadable from links on the bottom of the article page.

    --
    'The tyrant will always find pretext for his tyranny.' - Aesop's Fables
  9. My platform is an 8-pin DIP by OrangeTide · · Score: 1

    LPC810 is a Cortex-M0+ on an 8-pin DIP. It can be programmed with a simple TTL serial adapter.
    The main limitation of my setup is it needs a 3.3V supply, but I can solder an MCP1700 and decoupling capacitors off the pins easily enough.

    But the limited number of I/Os makes it very difficult to interface with more than a few peripherals. But that limitation tends to force projects to be simple inventions limited to a single task, rather than becoming sprawling swiss army knife projects. (LPC1114 is a DIP with more pins, but it is substantially larger)

    --
    “Common sense is not so common.” — Voltaire
    1. Re:My platform is an 8-pin DIP by drinkypoo · · Score: 1

      The main limitation of my setup is it needs a 3.3V supply

      does it also have 3.3v IO? I find that I want 5V a lot more often

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    2. Re:My platform is an 8-pin DIP by OrangeTide · · Score: 1

      They are 5V tolerant, so you'll want to level shift the outputs up to where they need to be. I rarely use 5V components in my own projects, but I may be unusual in that I tend to use modern highly integrated modules, accelerometers, lcd modules, GSM cell modules, SDR(lms6002d), etc.

      I would also recommend the ESP8266 as a general microcontroller as well, but it's not 5V tolerant, so quite a bit less compatible with off the shelf stuff hobbyists use.

      I sometimes run into modules that are 1.2V for their I/O (like the really big FPGAs), and that's even a bigger pain in the neck than the 3.3V to 5V issue. But theoretically 1.2V is lower power and potentially faster. Not that matters much when I'm mainly doing wirewrap or perfboard.

      --
      “Common sense is not so common.” — Voltaire
  10. yo dawg by Anonymous Coward · · Score: 0

    Heard u like computer controlled batteries so we put battery controlled computers inside the computer controlled battery

  11. Did he remember... by dohzer · · Score: 1

    Did he remember to give it a retarded connector configuration to make it incompatible with Veroboard and anything regular engineers would design?

  12. Metric? by viperidaenz · · Score: 0

    I know metric is hard for Americans, but come on.
    An AA battery is a 14500, that's 14mm diameter, 50.0mm long.
    The Tiny328 is 22.9 x 36.3
    How is that "size of an aa battery"?

    1. Re:Metric? by Anonymous Coward · · Score: 0

      I know reading comprehension is hard for morons, but come on.
      http://johan.kanflo.com/wp-con...

  13. Re:Confused? Tiny328 vs AAduino by Anonymous Coward · · Score: 0

    The Tiny328 is 22.9 x 36.3 but the AAduino has similar form factor to AA battery. Two different platforms.

  14. Java???? by mark-t · · Score: 2

    I thought that the arduino was typically programmed in a language more like c, or c++.

    1. Re:Java???? by cdrudge · · Score: 1

      Didn't you hear, C/C++ are really just clones of Java. /s

      The sentence is poorly worded but I think they are trying to say that the IDE is written in java (which it is).

    2. Re:Java???? by mark-t · · Score: 1
      Poorly worded? Actually, it's downright completely grammatically incorrect if that was the intended meaning:

      The Arduino platform consists of open-source hardware, open-source software, and microcontroller-based kits, making it easy to (re)program the processors, and develop software for hardware applications using a java-clone and an easy-to-learn IDE

      In fact, if they had honestly meant to be talking about what language the IDE had been written in, then they would not have called it a java "clone" at all, since "The Arduino IDE is written in Java...".

      So while I'm inclined to think that some people might actually genuinely believe what you sarcastically suggested. the fact remains that it is wholly disinformation, and it should not be perpetuated.

  15. Consder the LightBlue Bean by Anonymous Coward · · Score: 0

    If size is critical, consider the LighBlue Bean Arduino compatible. It's even a bit shorter and is powered by a CR2032. The whole package with a CR2032 is about 1/6 the size of the three AA battery set pictured. I've used it for a few projects, works well. https://punchthrough.com/bean/guides/getting-started/intro/

  16. Really a Scientist! by Anonymous Coward · · Score: 0

    Did he use new exciting Technology!
    Or did he ask his Board house how small can to make this?

  17. Scientist? by Anonymous Coward · · Score: 0

    Surely this is an engineering accomplishment, not a scientific one.

    So the label should be "engineer", not "scientist".

  18. Honey, I shrunk the electronics by TheRealHocusLocus · · Score: 1

    Imagine an alternate track where our electronics had been developed on a tiny scale, but there was this burning human desire to increase the scale over time so we could walk beside and through the individual components. If anyone made anything smaller people would just shrug and say, "What's the point of that?" There would be electron theme parks where you purchase units of charge to propel you through the rides. The thought of a clock strapped to the wrist would seem uncomfortable or disgusting... to discover the Time rational people make a pilgrimage to a Clock. Also imagine that in place of countless tiny mass-produced things, there was but one of each type of thing in the world, and folks would geographically converge to perfect it.

    What if football, baseball, basketball and all participation sports are evolved from games devised by the ancients as a means for human participants to engage in simple algorithmic operations to compute the solution of some larger problem... with resulting regional and global metrics of the tournaments to be fed into some other apparatus (which has been lost) that compiles the partial results and alerts when the problem has been solved? What if the apparatus has not been lost, but we simply gaze upon it, having forgotten its function?

    What if the Universe itself is the machine? No 42 jokes please.

    There is evidence that an ancient civilization attempted to up-scale their electronics, perhaps with the help of aliens only Ljuba Stojanovic can now communicate with.
    https://vimeo.com/163010009
    http://www.cracktwo.com/2011/0...

    Of course this sentiment exists and is happening in Minecraft with Medieval and Modern virtual technology.
    https://www.youtube.com/watch?...
    https://www.youtube.com/watch?...

    --
    <blink>down the rabbit hole</blink>
  19. Not new... by Anonymous Coward · · Score: 0

    http://www.cnet.com/uk/news/tethercell-magically-turns-aa-batteries-into-bluetooth-devices/

  20. Yawn by Anonymous Coward · · Score: 0

    So what? It doesn't need a scientist to produce the next media hyped crappy application of the overhyped avr-breakout-board-with-a-shitty-ide-and-broken-but- soooo-easy-libraries called arduino (which is, by the way, programmed using avr-gcc, it's only hidden from sight and hipply called a "sketch", because idiots obviously can't be challenged with include directives and a main() entry point, nor can they be trusted to learn binary operators to manipulate bits in registers).

    If you want to learn next to nothing about microcontrollers and have a blinky led in no time or want to create the millionth iteration of the "arduino plant watering system" (call it waterduino, plantduino, look-ma-no-hands-duino or whatever you like, just include the silly "duino" at the end) then go for it.

    Can't polish a turd.

  21. Imagine a Beowulf cluster of these. . . by Idou · · Score: 1

    Gives a whole new meaning to "clusterfuck". . .

    --
    Sdelat' Ameriku velikoy Snova!
  22. Scientist or Engineer? by ThaumaTechnician · · Score: 1

    I know: "why not both?"