85 lines
2.3 KiB
Arduino
85 lines
2.3 KiB
Arduino
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// Twitter client sketch for ENC28J60 based Ethernet Shield. Uses
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// arduino-tweet.appspot.com as a OAuth gateway.
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// Step by step instructions:
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//
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// 1. Get a oauth token:
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// http://arduino-tweet.appspot.com/oauth/twitter/login
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// 2. Put the token value in the TOKEN define below
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// 3. Run the sketch!
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//
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// WARNING: Don't send more than 1 tweet per minute!
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// NOTE: Twitter rejects tweets with identical content as dupes (returns 403)
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#include <EtherCard.h>
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// OAUTH key from http://arduino-tweet.appspot.com/
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#define TOKEN "Insert-your-token-here"
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// ethernet interface mac address, must be unique on the LAN
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byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
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const char website[] PROGMEM = "arduino-tweet.appspot.com";
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static byte session;
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byte Ethernet::buffer[700];
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Stash stash;
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static void sendToTwitter () {
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Serial.println("Sending tweet...");
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byte sd = stash.create();
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const char tweet[] = "@solarkennedy the test Twitter sketch works!";
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stash.print("token=");
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stash.print(TOKEN);
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stash.print("&status=");
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stash.println(tweet);
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stash.save();
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int stash_size = stash.size();
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// Compose the http POST request, taking the headers below and appending
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// previously created stash in the sd holder.
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Stash::prepare(PSTR("POST http://$F/update HTTP/1.0" "\r\n"
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"Host: $F" "\r\n"
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"Content-Length: $D" "\r\n"
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"\r\n"
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"$H"),
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website, website, stash_size, sd);
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// send the packet - this also releases all stash buffers once done
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// Save the session ID so we can watch for it in the main loop.
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session = ether.tcpSend();
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}
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void setup () {
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Serial.begin(57600);
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Serial.println("\n[Twitter Client]");
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if (ether.begin(sizeof Ethernet::buffer, mymac) == 0)
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Serial.println(F("Failed to access Ethernet controller"));
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if (!ether.dhcpSetup())
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Serial.println(F("DHCP failed"));
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ether.printIp("IP: ", ether.myip);
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ether.printIp("GW: ", ether.gwip);
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ether.printIp("DNS: ", ether.dnsip);
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if (!ether.dnsLookup(website))
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Serial.println(F("DNS failed"));
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ether.printIp("SRV: ", ether.hisip);
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sendToTwitter();
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}
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void loop () {
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ether.packetLoop(ether.packetReceive());
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const char* reply = ether.tcpReply(session);
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if (reply != 0) {
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Serial.println("Got a response!");
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Serial.println(reply);
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}
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}
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