With Instructables you can share what you make with the world and tap into an ever-growing community of creative experts.
share what you made with text, photos, video, and files
gather your favorite instructables together
Knock Block: a modern knocking frameworkMan has long wrestled with Time. Also, with knocking on things and not getting the time of day. We propose a k...
What's inside that rich mahogany exterior? An Arduino that reads vibrations from a piezoelectric sensor and relays back information with a solenoid ta...
Exactly how you make your case is up to you, but ours was carved from a block of mahogany by a ShopBot CNC machine. Our design was simple so we made a...
Tape the piezo at the base to something hard, so it can vibrate more freely. A cheap substitute for the piezo element is an old speaker, which also ca...
You'll need to get a high-current transistor (we used a TIP31C) to act as a switch for the solenoid - if it's connected directly to the Arduino it may...
// Arduino code for Knock Block // 2009: ReeD Martin, Ned Burns, Jon Ward, John Kestner // constants: const int ledPin = 12; // the solenoid ci...
Here you can see the battery resting on one side of the acrylic bracket, the Arduino on the other side with the transistor for the solenoid sticking i...
... and enjoy your Knock Block.
We have a be nice comment policy. Please be positive and constructive.
'Knock Back' - A Knock Echoing Arduinoby dan_nicholson
Tweet'n'knock - Tweeting the knockby fabrizio.granelli
Piezo sensor experimentationby dannevig
Controlling solenoids with arduinoby jts3k
Controling a solenoid valve with an Arduinoby fmarquis
Arduino Controlled Bell Tower/Carillonby mechatronics
Arduino Xylophoneby audreyobscura
Arduino playing "Puff the Magic Dragon" on a piezoby TheArduinoGuy
Make a Beat using Solenoidsby anc47
Knock box (it opens when you knock on it!)by tuixte
Download our new apps for iOS, Android and Windows 8!
© 2015 Autodesk, Inc.
By clicking "Create Account" you are indicating that you have read and agree to the Terms of service.
Already a member? Login »
Enter the email associated with your account and we will send you your username and a temporary password.
Not a member? Sign Up »