Add explosive power to your hi-five

It’s been a while since there was any advances made in the field if celebratory high-five-ing. [Eli Skipp] just finished her contribution, moving the art forward by adding the sound of explosions to her high-fives. Ignore the audio sync problems in the video after the break to see her Arduino and Wave Shield based offering. It uses a flex sensor to detect a high-five and has a bit of software filtering to avoid misfires when moving your hand or setting it down on a flat surface. It may look a bit ridiculous right now because of the bulk, but we could see a sleeker, cheaper version hitting toy and novelty stores everywhere.

Less useful than a sign-language translating glove, but easier to code and some would say more fun too.


  1. Stephanie says:

    That is fekkin awesome! 0.0

  2. Fer says:

    Try Audio recorder IC & contact switch & RC filter to playback. Much smaller.

  3. anon says:


    is your last name “Star”?

  4. smoker_dave says:

    That glove is massive, and in my opinion slightly over the top.

    Personally I would have used a small 8 pin micro (ATiny, PIC12F509) connected to a small Piezo transducer.

    Use the Piezo as an input (microphone style) and filter out any noise so it only responds to the frequency of two hands slapping together. When detected, multi purpose the Piezo as a sound generating device and play a loud rasp (or whatever).

    You could power the circuit from a small watch cell style battery and have the whole thing in a package the size you could wear as a ring on your finger.

    Just my opinion..

  5. CutThroughStuffGuy says:

    Use a 6 axis accelerometer instead of flex sensor :) No more false signals, lots more processing needed!

  6. alan says:

    1000 ways to skin a cat.

  7. Bob says:

    Neat project. It could be a big hit at a superbowl party, the NCAA final four, or maybe at league night at the bowling alley.

    My suggestion is to ditch the nose ring when you try to sell that to the toy corps.

  8. HPIguy says:

    Wow, how did I know that the first comment about a slightly attractive female geek would be of a sexual nature. It’s almost like I’m filling in for Nostradamus today.

  9. Bill Porter says:

    Lies! There are no girls on the internet!!!

    Joking, but cool. As expected, let the torrent of better ideas flow in.

  10. 87111k says:

    If the sound loop can be made small enough or generated you can store it in flash and push it out to a spi DAC. A fiend of mine did a similar thing.

    With regards to the accelerometer requiring filtering. Maybe giving an adaptive filter like a kalman and then peak detection on the filtered signal might work. Could be a good excuse to play with adaptive filters :-)

  11. Booker T. Worthington says:

    I was thinking the same thing as smoker dave and cut through stuff guy. Everyone is gung ho to use micro controllers these days, but I don’t see the need here. It’s a simple triggering circuit.

    Just get one of the stupid voice recording greeting cards, record your sound and then trigger it. With some analog circuitry, like the venerable 555!

    What would be cool to do is use your hand/body as a resistive sensor so when your bare hand comes in contact with something it makes the sound. No idea how to do this, but it sounds plausible :)

  12. fred says:

    She’s my wife!

  13. Necromant says:

    Woah, nice thing. But an arduino looks a bit too big for the purpose. some attiny would be somewhat smaller. And could be housed in a proper 3d-printed glove. However, this one looks… hmm… kind-of stylish. I recall they call it cyberpunk.

  14. Necromant says:

    @effigy Patrick definately doesn’t fit in the croud. May be he’s a spy? The guys here usually notice arduino first, and only after that they notice the girl. =)

  15. adamziegler says:

    She is an artist… I could be wrong, but I don’t think this item was meant to be “the next best thing” or “the most useful efficient hack ever.” I mean… she made a head crab scarf!

  16. Bill says:


    “Quick! I’ll distract her and you get the glove!”

  17. Patrick says:

    HPLGuy said:

    It’s almost like I’m filling in for Nostradamus.

    —- Don’t you mean Nostrildamus ???

  18. Avraam says:

    What’s wrong with the geek girls today with the rings in the nose/lip? We used to put rings like that (and I’m not joking) to the pig’s snout so they don’t break the pig house. Same with Lady Ada, she is pretty, she is smart but she have a f**ing ring in her snout. I really hope that this stupid craze will go away soon. BTW, that’s a nice high-fives glove! Thanks for the video.

  19. CutThroughStuffGuy says:

    Capacitive sensor behind a glove. Touch any conductive object (like another hand) and it would trigger. I use them in all sorts of things but the ones I use are HUGE and would not fit in a glove. Think 4 – 5″ long, 1.25″ in diameter.

  20. Tristan says:

    Wow, that is pretty cool. Say what you will about it being bulky, but I kinda like the look

  21. tim says:

    Is some facial piercing mandatory for any girl who wants to work the arduino ?

  22. dude says:

    on the next page she says she couldn’t do it without her friends… I want to help on the next project. :)

    this looks like an interesting idea. after the sound gets annoying maybe add a capacitive touch that generates a tone based on capacitance of whats touched (size/composition of object) and a temp sensor (danger). strap it to a prosthetic arm or give it to a diabetic with numb hands.

    could I get someone to measure the resistance/capacitance of an egg then squeeze it without breaking it to see if they change?

  23. Taylor Alexander says:

    Wow, everyone hatin on the facial piercings. They’re cute! You people are silly.

  24. noChester says:

    Luvin it!! Especially the piercing :D

  25. Justin says:

    The septum piercing is a divining rod to quickly identify sexist aggressive closed minded geeks. No high five for you and that is your loss!

    I like to see how people make things to their own requirements and materials. I am inspired by seeing works in progress and finished items. Armchair engineering very rarely shows me a new idea. I don’t know any makers who go around telling other makers how they did something was wrong. They are simply too busy and know that there is nothing to be gained other than a hollow self congratulation and others thinking you are an asp.

  26. reboots says:

    It’s been done:

    Of course, those gloves were huge on purpose.

  27. zool says:

    i’d use small 10sec recorder + vibration/shock switch

  28. Chris says:

    I just can’t figure out why people install terminals on their face, and then get upset if you try to connect a power source to see what happens. ;)

  29. NatureTM says:

    I don’t know, I feel pretty lame when I give a high-five to begin with. Just kidding, it’s a fun concept. Maybe next Fourth of July, get a little wireless connection going along with some model rocket igniters and make something actually explode! That is, if it’s legal in your area or whatever. It’s not, btw.

  30. vonskippy says:

    Now if only the glove would actually explode…

    //in a totally safe non-digit-threatening manner of course//

  31. yeti says:



  32. Roofus says:

    Soooo… let me get this straight. Because, of a chromosomal difference, her project is no longer judged on it’s creativeness or functionality, but by her physical appearance. No wonder net neutrality died yesterday, if one were to judge it on comments like these, why would you want to save it?

  33. Frank says:


  34. Wibble says:

    @Roofus No Net Neutrality isn’t dead so long as you don’t live in the usa… and are not hosted by or seviced by amazon, paypal, etc etc etc…

  35. Ozzy_Coff says:

    I totally reckon that the explosion sound would be set off if you slapped someone in the face :D lolz

  36. cde says:

    God girl, talk geeky to me <3

    Err, okay, now that that's out of my system, yea, definite overkill on the equipment. Remember the DIYLife msp430 audio project? 50 cent chip, microsd card + adaptor + speaker (and power of course). Could all be done for about 5 bucks, on the expensive end.

    She does a great job explaining everything in a CLEAR and CONCISE manner though, which anyone submitting to HaD should learn.

    I wonder how many proposals she received once the video was uploaded :D

  37. octel says:

    really wish hackaday would moderate comments so we wouldn’t have to deal with creepy comments from overbearing sexually frustrated basement-dwellers


  38. strider_mt2k says:

    Wow. Get a grip…or a girlfriend…or a life.

    Woman builds a cool thing = person builds a cool thing.

    Duh? Hello…2010?

    This person’s project is pretty cool, but it is a little over the top for what’s being sought.
    Like any hack, if the stuff was laying around, and it all came together and worked (or at least proved a concept) then IT’S ALL GOOD.

    I see folks at work doing the exploding knucks and this is merely an extension of the fun.

    You go…person! :D

  39. blues says:

    This is also some easier wearable high-five detector:!

  40. Alex Rossie says:


    Just cause she’s smart doesn’t mean she can’t be pretty. Sometimes you need to look past the personality to see the good looks and vice versa.

  41. I’m in love… ;)

  42. Luke says:

    It’s like the high-five version of hulk hands

  43. Gert says:

    “The small quantity of men who manage to be absolute pigs are overwhelmingly overrepresented on”

    Can’t wait to see the smaller version. Add a flash perhaps?

  44. Aleks Clark says:

    yea it’s pretty weaksauce. If a guy had posted it, people would be flaming it to hell and back, but everyone is being PC so as not to scare the girls away. Protip: you still live in your mom’s basement, no matter how nice you are to girls on the internet :)

    Seriously. ARDUINO USED FOR A FILTERED BUTTON. Can I get my arduino-controlled flashlight that takes input from a switch and turns on a LED posted on HAD tomorrow?

  45. octel says:

    @Aleks Clark
    “PC” is a term used by people to whine about how they can’t be openly sexist/racist/ableist/etc. unlike back “in the good old days” (the unspoken subtext: when women were subservient and minorities knew their place)

    That said, you’re a fucking tool. Please kindly GTFO along with the others.

  46. Aleks Clark says:

    What, so now you’re not even going to try to defend it as a hack? Can you find any OTHER cause that it’s not getting “ARDUINO GTFO”‘d?

    Protip: being nice just because it’s a girl is also sexist. In fact, because it’s a more subtle form of oppression, it’s actually worse! Think about it, don’t just pull the IWK kneejerk response.

  47. ngnlabs says:

    Way cool.

  48. m4rcu5 says:

    I am still treying to figure out whats cooler of this post. The man vs girl flamewar of the the hack it self.

    On topic:
    Its an cool idea by a nice looking girl. But to be fare, a ardiuno for all of that? that is a bit overkill in my eyes.

    I would say, don’t be scared of from some of the comments, keep up the work. but try to get rid of the arduino for these small tasks.

  49. NatureTM says:

    The fact that these comments got Eli Skipp to tweet, “The small quantity of men who manage to be absolute pigs are overwhelmingly overrepresented on” makes me feel truly shameful.

    We all slip and say the wrong thing sometimes, but some people *never* have anything good to say.

    I know you guys don’t walk down the street making sexist remarks to women. If you did, you’d probably get your ass kicked pretty regularly, and deserve it. Saying it from the safety of the internet is pretty cowardly.

    I’m nowhere near perfect, so sorry for getting all preachy. It would be a horrible thing if women were afraid to be featured on HaD. I wouldn’t want to be part of something like that.

  50. Haku says:

    That’s quite neat, you can get an audio module that plays mp3s fron an SD/SDHC card, controllable through TTL serial and can address up to almost 3000 individual mp3s, for $10 – (they will get more in stock, they keep running out) Google TDB380 for the proper pdf datasheet.

    You could re-create that hi-five glove using that
    module with a suitable miniature audio amp, accelermoter & microcontroller. Different sounds could be played depending on how hard the clap is.

    Also you could add flex sensors to tell when your index finger is straight but the others are clenched, then when you trip the accelerometer by thrusting your hand forwards in a gun shape, make a *pew* *pew* laser sound :)

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s


Get every new post delivered to your Inbox.

Join 96,699 other followers