Introduction: Motion Activated "Attack Creeper"

In January I decided that I needed to upgrade my in-home security. Unfortunately for me my building does not allow dogs so a big scary animal was not an option. Then suddenly, inspiration struck or I guess you could say exploded.

The most logical option was obviously to create a near life size Arduino powered, motion activated, audio playing, remote controllable Minecraft Creeper. Obviously.

Step 1: Check Your Chest for Required Inventory

As always this started with a fairly lengthy list of relatively inexpensive supplies. Here's the most complete list I can compile from memory. The electronics
  • Arduino UNO (all good projects start with an Arduino)
  • Ada Fruit Wave Shield (for audio playback with the Arduino)
  • Electric Sumo CMoy Amp (I wanted to build one of these anyway so I picked it up for the project)
  • Cheap RC Car (I picked mine up for $15 at the drug store)
  • PIR Sensor
  • Speaker (mine came with my Wave Shield kit)
  • Various bits of wire
  • Batteries, lots and lots of batteries
  • Something to power the Arduino (I used a Minty Boost also from Adafruit)
  And the crafty bits
  • Cardboard boxes
  • Paint
  • Hot glue (I used the normal stuff to hold the electronics in place and some heavy duty pull-the-skin-off-your-hands industrial stuff to hold the boxes together
  • Masking or painters tape
  • zip ties/cable ties
 

Step 2: Crafting a Creeper

OK So first lets build a cardboard creeper. I sketched out the basic idea to help me find boxes that fit the correct proportions. I wouldn't want a disproportionate in-home "Attack Creeper" because that would be ridiculous. 

My first step was cutting holes to allow me to run cables internally from box to box and opening up some access doors on the back of each box. I also cut holes in the bottom box to allow me to thread cable ties through the bottom and around the RC car and opened holes for the PIR sensor and speaker. After this was done I connected the three cardboard boxes that make up the body using some heavy duty hot glue. This stuff will pull the laminate off your desk before it pulls off, serious stuff. Everything got a coat of "Creeper Green" paint and I masked off the eyes and mouth for a coat of "Soul-less Killing Machine Black".

Step 3:

Next step electronics! My program basically works like this
  1. Detect motion with the PIR sensor
  2. Play fuse.wav (aka Tsssssssss...) via the Wave Shield
  3. Trigger the "Forward" button on the RC car remote for 2 seconds
  4. Play explode.wave via the Wave Shield
  5. Wait 10 seconds and reset
I've included a wiring diagram that explains how this monster is hooked up. 

The PIR sensor was really easy to hook up using the instructions available on Adafruit's website. I imagine any sensor that measures distance or detects motion could be used in place of this. I will say (for better or worse) using the example code for the PIR sensor made it very sensitive, maybe too sensitive. The RC car came with a simple remote that contained four momentary micro push buttons. I just wired into one side of the "forward" button and used the Arduino to turn the button. I also removed most of the body of the RC car leaving just the wheels, motors and frame. I copied the in game sound effects from Minecraft to the SD card in the wave shield for playback. The output volume of the Wave Shield on it's own is pretty quiet so I ran it through the CMoy Amp to boost it's volume to a appropriately scary level. After I was sure I had everything working I used some standard craft hot glue to glue the speaker and PIR sensor inside of the Creeper body. I also glued the back of the body closed because as I learned it's nearly impossible to get tape to stick to acrylic paint.

Step 4: I've Created a Monster

Now if you make your own motion activated "Attack Creeper" you'll find the real fun is hiding in places around the house your roommates and/or significant other would not expect it.

Here's a montage of the little guy working. He's just so adorable I could explode.






And since someone might be interested in my terribly mashed up code here's the code I used to run the thing. I used the example code for the PIR sensor and Wave Shield both available on adafruit.com to create this mostly functional code. Use at your own risk!

Comments

author
Christopher+Avier made it!(author)2016-03-23

That is SO cool! Never seen anything like it!

author
Blade+of+Thunder made it!(author)2016-01-04

lol that is awsome

author
aquabatty33 made it!(author)2015-09-28

Cool

author
builderkidj made it!(author)2011-05-14

*Bob walks by the creeper*

Bob:Oh my god a creeper

*runs to craft table and builds iron sword*

Bob:DIE!!!!!!

*Bob chops creeper into bite sized peices*

Joe:Dude,you broke my creeper dude i built

Bob:oh...

*bob chops joe into bite sized peices*


The end...or is it


Help continue this story on my orangeboard

author
Garrus made it!(author)2012-08-27

*
Joes mom walks in.
Joes mom: "you broke Joe!!!!"
Bob: *Gulp*
*joes mom chops up Bob into bite sized peices*



Continue the story!!!

author
builderkidj made it!(author)2012-08-27

*Joe's dad walks*
Dad:Oh my god you broke bob!
*Dad chops mom into bite sized bits*






*J.C Denton walks in*
J.C:A bomb!
*house blows up*
the end :)

author
waterlubber made it!(author)2013-02-16

*Herobrine walks in*
Herobrine: hehehe...
*herobrine rebuilds house and sets trap*
*everyone respawns*
Pressure Plate: BOOM!

author
Blazingspiker made it!(author)2015-04-29

nobody walks in

nobody dies.

the end.

boo-hoo.

whatever.

author
Minecraftlover402 made it!(author)2013-08-24

Defenetly worth da stuff

author
hawk45 made it!(author)2013-07-03

nice

author
techboy411 made it!(author)2012-08-22

What is the files?

author
creeperkeeper made it!(author)2012-05-13

EPIC!

author
purpulhaze made it!(author)2012-04-28

Nice instructable! I repurposed your code for my own project. I tried other sketches that did similar things but all failed to compile. Yours compiled without a hitch.

My question is do you know how to get a random wave function working with your sketch?

I've tried random seed but it fails to compile. Maybe I'm missing something or using it wrong.

author
OzTheGreatAndPwerful made it!(author)2012-03-17

hey, nice job dude but i think this could be sooo much better. add a louder sssssss noise, make the colors so that the holes blend with the black on the skin, make the actual feet shapes and have the wheels have longer joints(?), and finally make the car go a little slower. these are just constructive ideas

author
pipsqueakboy made it!(author)2012-04-14

Or better yet, make it say. Thatssss a very nice everything you have there..... It would be a shame if something were to happen to it...

author
Heywasup made it!(author)2012-04-04

Great idea! Definately gonna make my own and try to iron out some kinks you had. Ill post and instructable (with credit to you ofcourse)

author
griffintriston made it!(author)2011-12-16

love it

author
rocket+master made it!(author)2011-04-01

what if it followed the "intruder" until it got close enough to explode? hmmm

author
Kayoken made it!(author)2011-10-06

That could be done if you included a camera and coded it to follow an object set up servos to turn the controller so does follow the person, after it gets within 2 feet of the camera it activates the explosion and stops moving. to add effect it could have a small confetti cannon on its head thats hidden and when the explode sound goes off it will shoot the confetti.

author
jlund made it!(author)2011-10-09

That would be so AWSOME

author
jlund made it!(author)2011-10-09

Hay that is the best idea I have ever seen on this im gona make it just remote controlled and take it to my friends house who also loves mine craft and singsong ditch his house and he answers the door and my creeper drives up and boomb

author
Ryutso made it!(author)2011-10-02

Is that just regular brown packing tape you used to seal the boxes closed or is it some ultra high grade tape?

author
TheNewHobbyist made it!(author)2011-10-03

Plain old packing tape. The hot glue however was some high strength hot glue from McMaster Carr. It's really really strong. I can pick up the Creeper by the head and hold the body horizontal to the ground without it flexing or bending. Really nice stuff.

author
Ryutso made it!(author)2011-10-03

Awesome. I was trying clear packing tape and duct tape and neither want to stick long enough.

author
mitch+and+sears made it!(author)2011-07-12

Lol what's that thing next to the creeper(it looks like a mini creeper)

author
TheNewHobbyist made it!(author)2011-07-12

It is! My little (best ever) sister made me a clay creeper for my birthday! I used the face as a reference for painting the big one.

author
younglonewolf made it!(author)2011-09-03

how much would you charge for me if you made me one of these because i wanna make a clap trap (from borederlands) and i wanna have it so when people walk by him he talks and stuff but i dont know like what do do so how much would it cost oh and i was wondering if you could make it so he has like a few diferent play back thingys please respond

author
tqwerty made it!(author)2011-09-01

I NEED THIS!

author
burwuro made it!(author)2011-07-12

have a motor pull on one of thoes little "TNT" poppers so a confetti blast goes off at the end of the sound file.

author
tinker234 made it!(author)2011-07-12

wow add a machine g un so it hurts maybe a bb gun

author
commonersbeef made it!(author)2011-07-11

lol great now i got to go find some redstone lol

author
A1v1n1 made it!(author)2011-06-13

imagine putting a fuse that would actually detonate an actual c5 inside XD.
BIG mess

author
That+guy+is+me made it!(author)2011-06-25

Tsssssssssssssssssssssssssssssssssssssss BOOOM!!!!

:)

author
destructopop made it!(author)2011-06-24

I can see it now...
"Oh, heh... Cool. You made a Creeper statue."
"SSSSS..."
!!!
...
I think I might hurt someone in my rush to escape!

author
hintss made it!(author)2011-06-18

*sets difficulty to peaceful*
*acquires redstone torches*
/tp hintss TheNewHobbyist

author
hintss made it!(author)2011-06-18

*sets difficulty to peaceful*

author
aseaheru made it!(author)2011-05-16

CREEPER ALLERT!
DELEIT IT IMMEDITALY BEFORE SOMEONE GETS HURT!








caution: missspellings and randomness above.
COOL!

author
alecbh made it!(author)2011-04-15

THIS IS AWESSSSSSSSSSSSSSOME. :D

author
biggfoot53 made it!(author)2011-04-15

WIN!!!!!!!!!!!

author
TheTemptress made it!(author)2011-04-12

Ha ha ha, fantastic!

author
ryboodle made it!(author)2011-04-11

thatsss a veryyy nicccce real life you have there it would be a sshhame if something happened to it ssssssssssssssssssssssss........ BOOOOM

author
DucttapeNinja made it!(author)2011-04-09

You, sir, have my eternal respect and gratitude. Well done!

author
MercuryCrest made it!(author)2011-04-01

Arm it with Silly String....

author
TheNewHobbyist made it!(author)2011-04-04

That's a really really awesome idea. I'd love to see this done.

author
nebih made it!(author)2011-04-03

i am modding mine to do just that!

author
jessyratfink made it!(author)2011-04-01

yesssssssss

author
Salmon194 made it!(author)2011-04-01

Wow, I had this same idea, except it would detonate using a baloon-type thing filled with a CO2 canister. Great job making this!

author
daltonjcw made it!(author)2011-03-31

I SWEAR a colony of creepers took out my torches and destroyed an amazing mine. They're learning!

author
subligar made it!(author)2011-03-31

Imagine hiding this in Lewis' closet... he would probably faint!

author
Icalasari made it!(author)2011-03-31

Add some sort of air canister cannon that shoots out green confetti when it "explodes"!

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