Posts with «interactive» label

A Command-Line Stepper Library with All the Frills

When you already know exactly where and how you’d like your motor to behave, a code-compile-flash-run-debug cycle can work just fine. But if you want to play around with a stepper motor, there’s nothing like a live interface. [BrendaEM]’s RDL is a generic stepper motor driver environment that you can flash into an Arduino. RDL talks to your computer or cell phone over serial, and can command a stepper-driver IC to move the motor in three modes: rotary, divisions of a circle, and linear. (Hence the acronumical name.) Best of all, the entire system is interactive. Have a peek at the video below.

The software has quite a range of capabilities. Typing “?” gets you a list of commands, typing “@” tells you where the motor thinks it is, and “h” moves the motor back to its home position. Rotating by turns, degrees, or to a particular position are simple. It can also read from an analog joystick, which will control the rotation speed forward and backward in real time.

Division mode carves the pie up into a number of slices, and the motor spins to these particular locations. Twelve, or sixty, divisions gives you a clock, for instance. Acceleration and deceleration profiles are built in, but tweakable. You can change microstepping on the fly, and tweak many parameters of the drive, and then save all of the results to EEPROM. If you’re playing around with a new motor, and don’t know how quickly it can accelerate, or what speeds it’s capable of, nothing beats playing around with it interactively.

Right now, there’s not much documentation aside from the code itself and the attached video, but actually that looks like all you’d need to get started. So if you’re looking to replicate Hackaday’s [Moritz Walter]’s excellent stepper-driver shootout, a tool like this is just the ticket.

Filed under: misc hacks

Fifty speakers for an interactive sound sculpture

Hive (2.0) is the second iteration of an interactive sound sculpture consisting of fifty speakers and seven audio channels. The sensors detect the proximity of people and Arduino manipulates audio according to it.

It was created by Hopkins Duffield, a Toronto-based collaborative duo exploring ways to combine both new and familiar mediums with artistically technological practices. In this work they used Arduino Uno together with Max 6 / Max For Live.
Check the video to listen to the sculpture:

Skube, a tangible radio

Skube is a music player that allows you to discover and share music.

There are two modes, Playlist and Discovery. Playlist plays the tracks on your Skube, while Discovery looks for tracks similar to the ones on your Skube so you can discover new music that still fits your taste. When Skubes are connected together, they act as one player that shuffles between all the playlists. You can control the system as a whole using any Skube.

The interface is designed to be intuitive and tangible. Flipping the Skube changes the modes, tapping will play or skip songs and flipping a Skube on its front face will turn it off.

The Skube is a fully functional device, not just a concept. It use a combination of Arduino, Max/MSP and an XBee wireless network.

This project was made by Andrew Nip, Ruben van der Vleuten, Malthe Borch, and Andrew Spitz. It was part of the Tangible User Interface module at CIID ran by Vinay Venkatraman, David Cuartielles, Richard Shed, and Tomek Ness.

You can read the details and see the inner workings of the Skube here.

Via:[Create Digital Music]


Arduino Blog 20 Sep 10:21