code, circuits, & construction
code and fabrication resources for physical computing and networking
This Max patch takes in serial data and graphs it. It’s useful for seeing the changes in an analog sensor. An Arduino code sample that works with it follows the patch.
To use the patch, copy the text and paste it into a new max patch window.
Thanks to David Mellis and Jamie Allen for the collaboration. These patches were written for a one-day Arduino workshop at NIME 07 hosted by the three of us. The Arduino program comes from the Arduino example files, by David Mellis.
Technorati Tags: serial
Justin Downs wrote this routine to convert a large ASCII number to an array, as a workaround to the size limitation to atoi().
This code reads a Devantech CMPS03 digital compass on Wiring or Arduino using the Wire library for I2C.
Continue reading “Devantech CMPS03 digital compass reader”
This code reads a Devantech SRF02 ultrasonic ranger (and probably an SRF08 and SRF10 as well) It uses the Wire library for Wiring and Arduino.
Continue reading “Devantech SRF02, 08, 10 Ultrasonic Ranger reader”
Kate Hartman has written a set of PHP examples that allow you to connect to a microcontroller via a phone call using Asterisk. Her examples use the Arduino microcontroller. Thanks to Kate for the link.
Technorati Tags: networks
A few more Arduino shields:
Tod Kurt’s $10 breadboard shield is a quickie way to make a breadboard shield for Arduino.
If you’re a Phidgets user, Bjoern Hartmann has developed a shield that allows you to connect Phidgets sensors to Arduino.
Thanks to Tod and Bjoern for the links.
Calculating the configuration fuses for microcontrollers is always a pain. Many programming environments can do this for you, but in case yours doesn’t, here’s a handy fuse calculator for calculating the fuses on Atmel’s AVR microcontrollers.
Thanks to Zach Eveland for the link.
The Devantech SRF04 and SRF05 ultrasonic sensors are easy to use and reasonably accurate distance ranging sensors. To use them, you send the sensor s pulse of 10 microseconds on its INIT pin. Then the sensor sends out an ultrasonic pulse and waits for the pulse to bounce off something and return an echo. The sensor then pulses its ECHO pin. The length of the pulse in microseconds is proportional to the distance of the object from the sensor. The code below reads a Devantech sensor on an Arduino or Wiring module.
This Processing sketch controls the playback of a Quicktime movie using serial data. To use it, send a serial value from 0 – 255. The movie position will be set based on that value. 0 = beginning of movie, 255 = end of movie. It doesn’t matter what’s sending the serial data, as long as the value is between 0 and 255.
This is a very simple program to test the serial-to-ethernet connections of a Lantronix device connected to an Arduino or Wiring board.
Technorati Tags: networked objects, networks