Arduino Uno Quick Start Manual page 195

More Fun with Networking Arduinos
Wearables and e-textiles are getting more and more popular, and they re still a good
way to impress your colleagues and friends. Different types of interactive T-shirts are
available in every well-stocked geek shop. Some of them show the current Wi-Fi
strength, while others come with a full-blown built-in electronic rock guitar.
With an Arduino LilyPad,
a T-shirt that displays the current number of unread emails in your inbox.
Not only can you show the number of unread email messages, you can also use the
LilyPad and an XBee module to teach children important information about bees and
c
their behavior.
a. http://arduino.cc/en/Main/ArduinoBoardLilyPad
b.
http://blog.makezine.com/2010/03/30/email-counting-t-shirt/
c. http://www.instructables.com/id/Interactive-Bee-Game/
Ethernet/TimeServerDnsDhcp/TimeServerDnsDhcp.ino
#include <SPI.h>
Line 1
#include <Ethernet.h>
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-
const unsigned int
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const unsigned int
5
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byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
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char* time_server = "time.nist.gov";
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EthernetClient client;
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10
void setup() {
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Serial.begin(BAUD_RATE);
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if (Ethernet.begin(mac) == 0) {
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for (;;) {
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Serial.println("Could not obtain an IP address using
15
delay(1000);
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}
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} else {
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print_ip_address(Ethernet.localIP());
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}
20
}
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void loop() {
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delay(1000);
25
Serial.print("Connecting...");
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if (client.connect(time_server, DAYTIME_PORT) <= 0) {
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Serial.println("connection
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} else {
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Serial.println("connected.");
30
a
a Bluetooth dongle, and an Android phone, you can build
BAUD_RATE = 9600;
DAYTIME_PORT = 13;
failed.");
www.it-ebooks.info
Chapter 10. Networking with Arduino
b
DHCP.");
178
report erratum discuss