From 4805fea3b22bc3c86ebb064982b701e07eaeff08 Mon Sep 17 00:00:00 2001 From: Tom Igoe Date: Sat, 21 May 2011 13:22:43 -0400 Subject: [PATCH] Moving recent commits to new-extension branch --- .../SerialEvent/SerialEvent.ino | 57 ++++++++ .../DhcpAddressPrinter/DhcpAddressPrinter.ino | 54 ++++++++ .../DhcpChatServer/DhcpChatServer.ino | 80 +++++++++++ .../examples/TwitterClient/TwitterClient.ino | 124 ++++++++++++++++++ .../TwoPortReceive/TwoPortReceive.ino | 78 +++++++++++ 5 files changed, 393 insertions(+) create mode 100644 build/shared/examples/4.Communication/SerialEvent/SerialEvent.ino create mode 100644 libraries/Ethernet/examples/DhcpAddressPrinter/DhcpAddressPrinter.ino create mode 100644 libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino create mode 100644 libraries/Ethernet/examples/TwitterClient/TwitterClient.ino create mode 100644 libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino diff --git a/build/shared/examples/4.Communication/SerialEvent/SerialEvent.ino b/build/shared/examples/4.Communication/SerialEvent/SerialEvent.ino new file mode 100644 index 000000000..2f3f917e5 --- /dev/null +++ b/build/shared/examples/4.Communication/SerialEvent/SerialEvent.ino @@ -0,0 +1,57 @@ +/* + Serial Event example + + When new serial data arrives, this sketch adds it to a String. + When a newline is received, the loop prints the string and + clears it. + + A good test for this is to try it with a GPS receiver + that sends out NMEA 0183 sentences. + + Created 9 May 2011 + by Tom Igoe + + This example code is in the public domain. + + http://www.arduino.cc/en/Tutorial/SerialEvent + + */ + +String inputString = ""; // a string to hold incoming data +boolean stringComplete = false; // whether the string is complete + +void setup() { + // initialize serial: + Serial.begin(9600); + // reserve 200 bytes for the inputString: + inputString.reserve(200); +} + +void loop() { + // print the string when a newline arrives: + if (stringComplete) { + Serial.println(inputString); + // clear the string: + inputString = ""; + stringComplete = false; + } +} + +/* + SerialEvent occurs whenever a new byte comes in the + hardware serial RX. Don't do complex things here, as thge + processor halts the regular program to run this routine: + */ +void serialEvent() { + // get the new byte: + char inChar = (char)Serial.read(); + // add it to the inputString: + inputString += inChar; + // if the incoming character is a newline, set a flag + // so the main loop can do something about it: + if (inChar == '\n') { + stringComplete = true; + } +} + + diff --git a/libraries/Ethernet/examples/DhcpAddressPrinter/DhcpAddressPrinter.ino b/libraries/Ethernet/examples/DhcpAddressPrinter/DhcpAddressPrinter.ino new file mode 100644 index 000000000..8701568c0 --- /dev/null +++ b/libraries/Ethernet/examples/DhcpAddressPrinter/DhcpAddressPrinter.ino @@ -0,0 +1,54 @@ +/* + DHCP-based IP printer + + This sketch uses the DHCP extensions to the Ethernet library + to get an IP address via DHCP and print the address obtained. + using an Arduino Wiznet Ethernet shield. + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 12 April 2011 + by Tom Igoe + + */ + +#include +#include + +// Enter a MAC address for your controller below. +// Newer Ethernet shields have a MAC address printed on a sticker on the shield +byte mac[] = { + 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 }; + +// Initialize the Ethernet client library +// with the IP address and port of the server +// that you want to connect to (port 80 is default for HTTP): +Client client; + +void setup() { + // start the serial library: + Serial.begin(9600); + // start the Ethernet connection: + Serial.println("Trying to get an IP address using DHCP");z + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // no point in carrying on, so do nothing forevermore: + while(true); + } + // print your local IP address: + Serial.print("My IP address: "); + IPAddress myIPAddress = Ethernet.localIP(); + for (byte thisByte = 0; thisByte < 4; thisByte++) { + // print the value of each byte of the IP address: + Serial.print(myIPAddress[thisByte], DEC); + Serial.print("."); + } + Serial.println(); +} + +void loop() { + +} + + diff --git a/libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino b/libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino new file mode 100644 index 000000000..c3e581387 --- /dev/null +++ b/libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino @@ -0,0 +1,80 @@ +/* + DHCP Chat Server + + A simple server that distributes any incoming messages to all + connected clients. To use telnet to your device's IP address and type. + You can see the client's input in the serial monitor as well. + Using an Arduino Wiznet Ethernet shield. + + THis version attempts to get an IP address using DHCP + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 21 May 2011 + by Tom Igoe + Based on ChatServer example by David A. Mellis + + */ + +#include +#include + +// Enter a MAC address and IP address for your controller below. +// The IP address will be dependent on your local network. +// gateway and subnet are optional: +byte mac[] = { + 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 }; +IPAddress ip(192,168,1, 177); +IPAddress gateway(192,168,1, 1); +IPAddress subnet(255, 255, 0, 0); + +// telnet defaults to port 23 +Server server(23); +boolean gotAMessage = false; // whether or not you got a message from the client yet + +void setup() { + // open the serial port + Serial.begin(9600); + // start the Ethernet connection: + Serial.println("Trying to get an IP address using DHCP"); + if (Ethernet.begin(mac) == 0) { + Serial.println("Failed to configure Ethernet using DHCP"); + // initialize the ethernet device not using DHCP: + Ethernet.begin(mac, ip, gateway, subnet); + } + // print your local IP address: + Serial.print("My IP address: "); + ip = Ethernet.localIP(); + for (byte thisByte = 0; thisByte < 4; thisByte++) { + // print the value of each byte of the IP address: + Serial.print(ip[thisByte], DEC); + Serial.print("."); + } + Serial.println(); + // start listening for clients + server.begin(); + +} + +void loop() { + // wait for a new client: + Client client = server.available(); + + // when the client sends the first byte, say hello: + if (client) { + if (!gotAMessage) { + Serial.println("We have a new client"); + client.println("Hello, client!"); + gotAMessage = true; + } + + // read the bytes incoming from the client: + char thisChar = client.read(); + // echo the bytes back to the client: + server.write(thisChar); + // echo the bytes to the server as well: + Serial.print(thisChar); + } +} + diff --git a/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino b/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino new file mode 100644 index 000000000..399e76bc3 --- /dev/null +++ b/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino @@ -0,0 +1,124 @@ +/* + Twitter Client with Strings + + This sketch connects to Twitter using an Ethernet shield. It parses the XML + returned, and looks for this is a tweet + + You can use the Arduino Ethernet shield, or the Adafruit Ethernet shield, + either one will work, as long as it's got a Wiznet Ethernet module on board. + + This example uses the DHCP routines in the Ethernet library which is part of the + Arduino core from version 1.0 beta 1 + + This example uses the String library, which is part of the Arduino core from + version 0019. + + Circuit: + * Ethernet shield attached to pins 10, 11, 12, 13 + + created 21 May 2011 + by Tom Igoe + + This code is in the public domain. + + */ +#include +#include + + +// Enter a MAC address and IP address for your controller below. +// The IP address will be dependent on your local network: +byte mac[] = { + 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x01 }; +IPAddress ip(192,168,1,20); + +// initialize the library instance: +Client client; + +const int requestInterval = 60000; // delay between requests + +char serverName[] = "api.twitter.com"; // twitter URL + +boolean requested; // whether you've made a request since connecting +long lastAttemptTime = 0; // last time you connected to the server, in milliseconds + +String currentLine = ""; // string to hold the text from server +String tweet = ""; // string to hold the tweet +boolean readingTweet = false; // if you're currently reading the tweet + +void setup() { + // reserve space for the strings: + currentLine.reserve(256); + tweet.reserve(150); + +// initialize serial: + Serial.begin(9600); + // attempt a DHCP connection: + if (!Ethernet.begin(mac)) { + // if DHCP fails, start with a hard-coded address: + Ethernet.begin(mac, ip); + } + // connect to Twitter: + connectToServer(); +} + + + +void loop() +{ + if (client.connected()) { + if (client.available()) { + // read incoming bytes: + char inChar = client.read(); + + // add incoming byte to end of line: + currentLine += inChar; + + // if you get a newline, clear the line: + if (inChar == '\n') { + currentLine = ""; + } + // if the current line ends with , it will + // be followed by the tweet: + if ( currentLine.endsWith("")) { + // tweet is beginning. Clear the tweet string: + readingTweet = true; + tweet = ""; + } + // if you're currently reading the bytes of a tweet, + // add them to the tweet String: + if (readingTweet) { + if (inChar != '<') { + tweet += inChar; + } + else { + // if you got a "<" character, + // you've reached the end of the tweet: + readingTweet = false; + Serial.println(tweet); + // close the connection to the server: + client.stop(); + } + } + } + } + else if (millis() - lastAttemptTime > requestInterval) { + // if you're not connected, and two minutes have passed since + // your last connection, then attempt to connect again: + connectToServer(); + } +} + +void connectToServer() { + // attempt to connect, and wait a millisecond: + Serial.println("connecting to server..."); + if (client.connect(serverName, 80)) { + Serial.println("making HTTP request..."); + // make HTTP GET request to twitter: + client.println("GET /1/statuses/user_timeline.xml?screen_name=arduino&count=1 HTTP/1.1"); + client.println("HOST: api.twitter.com"); + client.println(); + } + // note the time of this connect attempt: + lastAttemptTime = millis(); +} diff --git a/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino b/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino new file mode 100644 index 000000000..e870c6fc1 --- /dev/null +++ b/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino @@ -0,0 +1,78 @@ +/* + Software serial multple serial test + + Receives from the two software serial ports, + sends to the hardware serial port. + + In order to listen on a software port, you call port.listen(). + When using two software serial ports, you have to switch ports + by listen()ing on each one in turn. Pick a logical time to switch + ports, like the end of an expected transmission, or when the + buffer is empty. This example switches ports when there is nothing + more to read from a port + + The circuit: + Two devices which communicate serially are needed. + * First serial device's TX attached to digital pin 2, RX to pin 3 + * Second serial device's TX attached to digital pin 4, RX to pin 5 + + created 18 Apr. 2011 + by Tom Igoe + based on Mikal Hart's twoPortRXExample + + This example code is in the public domain. + + */ + +#include +// software serial #1: TX = digital pin 2, RX = digital pin 3 +SoftwareSerial portOne(2, 3); + +// software serial #2: TX = digital pin 4, RX = digital pin 5 +SoftwareSerial portTwo(4, 5); + +void setup() +{ + // Start the hardware serial port + Serial.begin(9600); + + // Start each software serial port + portOne.begin(9600); + portTwo.begin(9600); +} + +void loop() +{ + // By default, the last intialized port is listening. + // when you want to listen on a port, explicitly select it: + portOne.listen(); + Serial.println("Data from port one:"); + // while there is data coming in, read it + // and send to the hardware serial port: + while (portOne.available() > 0) { + char inByte = portOne.read(); + Serial.write(inByte); + } + + // blank line to separate data from the two ports: + Serial.println(); + + // Now listen on the second port + portTwo.listen(); + // while there is data coming in, read it + // and send to the hardware serial port: + Serial.println("Data from port two:"); + while (portTwo.available() > 0) { + char inByte = portTwo.read(); + Serial.write(inByte); + } + + // blank line to separate data from the two ports: + Serial.println(); +} + + + + + +