arduino lecture 2 - interactive media cs4062 semester 2 2009
DESCRIPTION
CS4062 Masters in Interactive Media - Second Arduino Lecture - March 6th 2009 - University of Limerick. This lecture presents an introduction to communications and the Arduino with examples. This was aimed at a digital media / music technology masters student audience.TRANSCRIPT
Making Conversationsand Finding ThingsCS4062 - Eoin Brazil - Semester 2 - 2009
Communications
Wired XPort TCP/IP for
Ethernet connectivity
Serial
I3C
CAN
Wireless Infrared
Bluetooth
"RF"
WiPort TCP/IP
Cell Phone Data GPRS
ZigBee & 802.15.4
802.11b,g,n
Examples
Linking an Arduino ethernet shield, parallax RFID reader, and
Examples - SL <> RL
Linking an Arduino ethernet shield, parallax RFID reader, and
SL to RL LSL script for SL
objects LSL to PHP
webserver with connected Arduino
PHP to Arduino’s serial port
Examples - SL <> RL
Linking an Arduino ethernet shield, parallax RFID reader, and
Boticalls @ ITP
Botanicalls, thirsty plants make phone calls for human help.
Wired & Wireless Light & Soil sensors
Arduino
XBee
XPort
Asterisk
http://itp.nyu.edu/show/winter2006/detail.php?project_id=912http://www.botanicalls.com/twitter/index.htm
Boticalls @ ITP
Examples - Blogject
Botanicalls Sensors to
Arduino Arduino to
XPort to Twitter
Examples - Blogject
Examples - Spimes
Examples - Spimes
Examples
Wind-up birds is an installation of networked mechanical woodpeckers.Each woodpecker consists of a woodblock and pushmagnet, a custom-made electronic circuit and a radio modem.All the woodpeckers are connected together in a zigbee wireless network.Every 5 minutes one of the woodpeckers start pecking, and the others answer.
Examples
Motors and a toy glockenspiel
Beware Communications Troubleshooting
use wired versions of your project or idea first, debugging a problem is hard when its wired directly together, wireless adds an additional layer of problems
chatter, too much or too fast can result in loss
wireless is slower than wired
more expensive approaches can improve speed and reliability but all are battery hogs
NAT, routers, and traversing firewalls
Sessions or Messages TCP or UDP
Session makes connection, does handshaking, information is transferred, and then closed
Datagram, similar to physical letter or postcard
Point to Point, Point to Many (multicast), Point to All (Broadcast)
802.15.4 Topologies
Single peer
Broadcast
Multi peer
ZigBee Topologies
Peer
Star
Mesh
Routing
Protocols and ProxiesProxy: Conversion of communication to another type
Network serial (Serial to TCP) TinkerProxy / Griffin Proxi osculator Girder (Windows) Shion, Indigo Sydewynder
Protocol: Structured conversation
Midi / OSC DMX512 X10, INSTEON
http://www.digitalartistshandbook.org/node/10
Sources for Parts Hacking / Disassembly
use existing high-tech, but inexpensive, objects, toys and devices as cheap source of parts for your projects
little specialist knowledge is required, photograph and document the disassembly
``Low tech sensors and actuators for artists and architects’’ provides examples, by Usman Haque and Adam Somlai-Fischer
Purchase / Stores Many parts are available locally in UL, ask.
Online vendors for electronic parts include farnell.com, mouser.com, and digikey.com
Sensors, shields, kits, servos can also be found from sparkfun.com or parallax.com
Many others, just small selection that I’ve used.
http://lowtech.propositions.org.uk/http://ie.farnell.com/http://www.mouser.com/http://www.digikey.com/http://www.sparkfun.com/http://www.parallax.com/Store/tabid/60/Default.aspx