150 lines
4.1 KiB
C++
150 lines
4.1 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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// Modifing so that it works on my setup for www.thingspeak.com.
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// Arduino pro-mini 5V/16MHz, ETH modul on SPI with CS on pin 10.
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// Also added a few changes found on various forums. Do not know what the
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// res variable is for, tweaked it so it works faster for my application
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// 2015-11-09 dani.lomajhenic@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 "beef1337beef1337" // put your key here
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#define ethCSpin 10 // put your CS/SS pin here.
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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.thingspeak.com";
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byte Ethernet::buffer[700];
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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 = 100; // was 0
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void setup () {
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Serial.begin(9600);
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Serial.println("\n[ThingSpeak 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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// field1=(Field 1 Data)&field2=(Field 2 Data)&field3=(Field 3 Data)&field4=(Field 4 Data)&field5=(Field 5 Data)&field6=(Field 6 Data)&field7=(Field 7 Data)&field8=(Field 8 Data)&lat=(Latitude in Decimal Degrees)&long=(Longitude in Decimal Degrees)&elevation=(Elevation in meters)&status=(140 Character Message)
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byte sd = stash.create();
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stash.print("field1=");
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stash.print(demo);
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//stash.print("&field2=");
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//stash.print(one);
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//stash.print("&field3=");
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//stash.print(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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// 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("POST /update HTTP/1.0" "\r\n"
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"Host: $F" "\r\n"
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"Connection: close" "\r\n"
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"X-THINGSPEAKAPIKEY: $F" "\r\n"
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"Content-Type: application/x-www-form-urlencoded" "\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(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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// added from: http://jeelabs.net/boards/7/topics/2241
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int freeCount = stash.freeCount();
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if (freeCount <= 3) { Stash::initMap(56); }
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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(F(" >>>REPLY recieved...."));
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Serial.println(reply);
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}
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delay(300);
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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); // do notknow what this is for, i ve got something elso on pin5
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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, ethCSpin) == 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 = 180;
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break;
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}
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}
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