With Instructables you can share what you make with the world and tap into an ever-growing community of creative experts.
share step-by-step photos with text instructions
share one or more photos in one step quickly and easily
share your how-to video
The older I get, the smaller my cubicle gets. In fact, I don't even have a cubicle now. But my boss used to walk in undetected and catch me doing rese...
You can read the package for yourself. It has about 6 different random "tunes." But, the key item is the little RF remote button that comes with it....
Obviously it turns on a little light (LED) when motion is detected, and the room is dark. (Hmmmmm, I wonder if I could...)
Well, I labeled everything. The photocell (not shown, but trust me, it's there) is to prevent the light (LED) from coming on during the daytime, and...
First, you see that PIR motion detector. PIR means "Passive infra-red." Some people call it a "Pyro infra-red." I don't know why. Regardless, we w...
The photocell, such as you can buy at Radio Shack, has a resistance of about 50k ohms with no light exposure, and about 5k ohms or less when exposed t...
There's a button, which means somewhere there two pins, that when close-circuited, causes the whoopee cushion to do it's thing. The pins are fairly o...
It's not really that tricky if you know a little about electronics, but the deal is that you need to use the trigger signal to activate the system. Y...
This pic is one way to conceal everything. Note - by using a micro-controller, the number of variations on this instructable are unlimited. You can p...
Here's another boss detector based on the same concept. Also, somebody wanted a video, so I'll put up a video for this soon. The detector for this one...
Sneaky Smoke Detector Stashby gravityisweak
USB MOOD DETECTOR BOT.by Mr.Sanchez
Turn a calculator into a metal detectorby RazorG606
In Paper Mario: the Thousand-Year door, Each chapter has a secret.......by chicken woman
Nightlight IR Detector Hackby yardleydobon
Gas detector / indicator (USB powered) with arduinoby StijnID
Small-Range Motion Detectorby crazycircuits
Modify a 6 EUR smoke detector for use with microcontroller, auto-dialer, linking, and moreby redxine
Bug-Catching Spider in Web, Part 2by bhasudha
Light Up Your Peopleby Geek07Boy
Download our new apps for iOS, Android and Windows 8!
© 2014 Autodesk, Inc.
PDF DownloadsAs a Pro member, you will gain access to download any Instructable in the PDF format.
You also have the ability to customize your PDF download.