/* IT-Syndikat Open device Firmware for the wooden Device with two fat buttons Network Requirements: * Ethernet port on Router * DHCP enabled on Router * Unique MAC Address for Arduino Additional Credits: Example sketches from Arduino team, Ethernet by Adrian McEwen Based on the Ethernet to Thingspeak exaple by Hans Scharler */ #include #include #include "APIKey.h" #include "TimerOne.h" byte mac[] = { 0xD4, 0xBA, 0xD9, 0x9A, 0x7C, 0x95 }; // Must be unique on local network // Initialize Arduino Ethernet Client EthernetClient client; // Twitter response variables char serverName[] = "it-syndikat.org"; // URL String currentLine = ""; // string to hold the text from server // Specific variables // Status int hsopen; int ethernetstatus; int ledtimer =0; const int ledspan =100; int pingtimer =-1; const int pingspan =250; int checktimer = 0; const int checkspan =1000; int update = 0; //debug options boolean debug = true; //LED and Switch pins const int glight = 5; const int rlight = 6; const int topen = 2; const int tclose = 3; void setLeds(){ if (pingtimer>=0) { // blink like crazy if((pingtimer/2)%2 ==1){ analogWrite(rlight, 255); analogWrite(glight, 255); }else{ analogWrite(rlight, 0); analogWrite(glight, 0); } pingtimer--; }else{ switch(ethernetstatus){ case 0:{ // ethernet fail //blink red if(ledtimer < (ledspan/2)){ analogWrite(rlight, 255); }else{ analogWrite(rlight, 0); } analogWrite(glight, 0); break; } case -1:{ // ethernet unknown // fade green if(ledtimer < (ledspan/2)){ analogWrite(glight, (255/(ledspan/2)*ledtimer));//fade up }else{ analogWrite(glight, 255-(255/(ledspan/2)*(ledtimer-(ledspan/2))));//fade down } analogWrite(rlight, 0); break; } case 1:{ // ethernet ok switch(hsopen){ case 0:{ // closed //red analogWrite(rlight, 255); analogWrite(glight, 0); break; } case 1:{ // open // green analogWrite(rlight, 0); analogWrite(glight, 255); break; } case 2:{ // wait // fade red and green if(ledtimer < (ledspan/2)){ int tmp=(255/(ledspan/2)*ledtimer); analogWrite(glight, tmp);//fade up analogWrite(rlight, tmp);//fade up }else{ int tmp = 255-(255/(ledspan/2)*(ledtimer-(ledspan/2))); analogWrite(glight, tmp);//fade down analogWrite(rlight, tmp);//fade down } break; } case -1:{ // unknown // fade red if(ledtimer < (ledspan/2)){ analogWrite(rlight, (255/(ledspan/2)*ledtimer));//fade up }else{ analogWrite(rlight, 255-(255/(ledspan/2)*(ledtimer-(ledspan/2))));//fade down } analogWrite(glight, 0); break; } } break; } } ledtimer++; if ( ledtimer >= ledspan ) { ledtimer = 0; } } checktimer++; if ( checktimer >= checkspan ) { checktimer = 0; update=1; } } void setEth(int statuss){ ethernetstatus = statuss; if(debug){ Serial.println("Setting eth "); Serial.println(statuss); } setLeds(); } void setRoom(int statuss){ hsopen= statuss; if(debug){ Serial.print("Setting room "); Serial.println(statuss); } setLeds(); } void startEthernet() { client.stop(); if(debug){ Serial.println("Connecting Arduino to network..."); Serial.println(); } setEth(-1); delay(1000); // Connect to network amd obtain an IP address using DHCP if (Ethernet.begin(mac) == 0) { if(debug){ Serial.println("DHCP Failed, reset Arduino to try again"); Serial.println(); } setEth(0); } else { if(debug){ Serial.println("Arduino connected to network using DHCP"); Serial.println(); } setEth(1); } if(debug){ Serial.println("DONE"); Serial.println(); } delay(1000); } //reads out the status returned by the server and sets the LED's appropriately. //the mode is defied by the intended call: void readServerStatus(int mode) { char lastsign='0'; boolean readStatus = false; while(client.connected()) { if (client.available()) { // read incoming bytes: char inChar = client.read(); // add incoming byte to end of line: currentLine += inChar; if(debug){Serial.print(inChar);} // if you get a newline, clear the line: if (inChar == '\n') { currentLine = ""; if(lastsign == '\n'){ // /r/n /r/n is the end of a header readStatus= true; //start to parse the content of the line if(debug){Serial.println("##END OF HEADER##");} } } if (readStatus) { if(currentLine.startsWith("true", 0)){ if(debug){Serial.println("");} switch(mode){ case 0: setRoom(1); break; case 1: if(debug){Serial.println("Wink Wink");} pingtimer = pingspan; break; } // close the connection to the server: client.stop(); return; } if(currentLine.startsWith("false", 0)){ if(debug){Serial.println("");} switch(mode){ case 0: setRoom(0); break; case 1: if(debug){Serial.println("No Wink");} break; } // close the connection to the server: client.stop(); return; } } if (inChar != '\r') {// removes /r so we dan test if the header end with two newlines, hacky but works. lastsign = inChar; } } } setRoom(-1); client.stop(); } void TriggerServerReq(String s, int mode) { // attempt to connect, and wait a millisecond: if(debug){Serial.println("connecting to server... Status req");} if (client.connect(serverName, 80)) { if(debug){Serial.println("making HTTP request...");} // make HTTP GET request to server: client.println("GET "+ s +" HTTP/1.1"); client.println("HOST: it-syndikat.org"); client.println("Connection: close"); client.println(); readServerStatus(mode); }else{ if(debug){Serial.println("Not connected...");} } // note the time of this connect attempt: } void RequestState() { TriggerServerReq("/status-s.php",0); } // Status LED pins void setup() { pinMode(glight, OUTPUT); pinMode(rlight, OUTPUT); // Buttons with pullup resistor pinMode(topen, INPUT); pinMode(tclose, INPUT); digitalWrite(topen,HIGH); digitalWrite(tclose,HIGH); // Start Serial for debugging on the Serial Monitor if(debug){ Serial.begin(9600); } // Start Ethernet on Arduino setEth(-1); setRoom(2); Timer1.initialize(20000); // 50 mal die Sekunde Timer1.attachInterrupt(setLeds); startEthernet(); delay(1000); // Get current Status RequestState(); } void TriggerServerUpdate(boolean stat) { // attempt to connect, and wait a millisecond: if(debug){Serial.println("connecting to server... Update Req");} if (client.connect(serverName, 80)) { if(debug){Serial.println("making HTTP request...");} // make HTTP GET request to server: String s =(stat?"true":"false"); client.println("GET /update.php?open=" + s + "&apikey="+serverAPIKey+" HTTP/1.1"); client.println("HOST: it-syndikat.org"); client.println("Connection: close"); client.println(); readServerStatus(0); }else{ if(debug){Serial.println("Not connected...");} } // note the time of this connect attempt: } void readButtons(){ if((digitalRead(topen)==LOW)&&(hsopen!=1)){ //startEthernet(); setRoom(2); TriggerServerUpdate(true); } if((digitalRead(tclose)==LOW)&&(hsopen!=0)){ //startEthernet(); setRoom(2); TriggerServerUpdate(false); } } void RequestPing() { TriggerServerReq("/ping-get.php?apikey="+pingAPIKey,1); } void launchUpdate(){ if(update==1){ RequestPing(); RequestState(); update = 0; } } void loop() { readButtons(); launchUpdate(); } //This just reads the server return and logs it to the serial // @deprecated void readServerReturn() { //if(debug){Serial.println("readServerReturn ... ");} while(client.connected()) { if (client.available()) { char c = client.read(); if(debug){Serial.print(c);} } } if(debug){Serial.println();} if(debug){Serial.println("disconnecting.");} client.stop(); }