140 lines
3 KiB
C++
140 lines
3 KiB
C++
// Simple demo for feeding some random data to Pachube.
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// 2011-07-08 <jc@wippler.nl> http://opensource.org/licenses/mit-license.php
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// Handle returning code and reset ethernet module if needed
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// 2013-10-22 hneiraf@gmail.com
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#include <EtherCard.h>
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// change these settings to match your own setup
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#define FEED "000"
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#define APIKEY "xxx"
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// ethernet interface mac address, must be unique on the LAN
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static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };
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const char website[] PROGMEM = "api.xively.com";
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byte Ethernet::buffer[350];
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uint32_t timer;
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Stash stash;
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byte session;
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//timing variable
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int res = 0;
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void setup () {
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Serial.begin(57600);
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Serial.println("\n[Xively example]");
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//Initialize Ethernet
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initialize_ethernet();
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}
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void loop () {
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//if correct answer is not received then re-initialize ethernet module
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if (res > 220){
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initialize_ethernet();
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}
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res = res + 1;
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ether.packetLoop(ether.packetReceive());
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//200 res = 10 seconds (50ms each res)
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if (res == 200) {
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//Generate random info
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float demo = random(0,500);
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word one = random(0,500);
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String msje;
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if (demo < 250){
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msje = "low";
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}
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else{
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msje = "high";
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}
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// generate two fake values as payload - by using a separate stash,
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// we can determine the size of the generated message ahead of time
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byte sd = stash.create();
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stash.print("demo,");
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stash.println(demo);
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stash.print("one,");
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stash.println(one);
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stash.print("mensaje,");
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stash.println(msje);
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stash.save();
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//Display data to be sent
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Serial.println(demo);
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Serial.println(one);
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// generate the header with payload - note that the stash size is used,
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// and that a "stash descriptor" is passed in as argument using "$H"
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Stash::prepare(PSTR("PUT http://$F/v2/feeds/$F.csv HTTP/1.0" "\r\n"
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"Host: $F" "\r\n"
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"X-PachubeApiKey: $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, PSTR(FEED), website, PSTR(APIKEY), stash.size(), sd);
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// send the packet - this also releases all stash buffers once done
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session = ether.tcpSend();
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}
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const char* reply = ether.tcpReply(session);
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if (reply != 0) {
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res = 0;
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Serial.println(reply);
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}
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delay(50);
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}
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void initialize_ethernet(void){
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for(;;){ // keep trying until you succeed
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//Reinitialize ethernet module
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pinMode(5, OUTPUT);
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Serial.println("Reseting Ethernet...");
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digitalWrite(5, LOW);
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delay(1000);
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digitalWrite(5, HIGH);
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delay(500);
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if (ether.begin(sizeof Ethernet::buffer, mymac) == 0){
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Serial.println( "Failed to access Ethernet controller");
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continue;
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}
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if (!ether.dhcpSetup()){
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Serial.println("DHCP failed");
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continue;
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}
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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("DNS failed");
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ether.printIp("SRV: ", ether.hisip);
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//reset init value
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res = 0;
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break;
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}
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}
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