426 lines
9.8 KiB
C++
426 lines
9.8 KiB
C++
/*
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IT-Syndikat Open device Firmware for the wooden Device with two fat buttons
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Network Requirements:
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* Ethernet port on Router
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* DHCP enabled on Router
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* Unique MAC Address for Arduino
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Additional Credits:
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Example sketches from Arduino team, Ethernet by Adrian McEwen
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Based on the Ethernet to Thingspeak exaple by Hans Scharler
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*/
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#include <Ethernet.h>
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#include <SPI.h>
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#include "APIKey.h"
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#include "TimerOne.h"
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// Must be unique on local network
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byte mac[] = {0xD4, 0xBA, 0xD9, 0x9A, 0x7C, 0x95};
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// Initialize Arduino Ethernet Client
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EthernetClient client;
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// Twitter response variables
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#define SERVER_DOMAIN "spaceapi.it-syndikat.org" // URL
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String currentLine = ""; // string to hold the text from server
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// Specific variables
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// Status
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int hsopen;
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int ethernetstatus;
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int ledtimer = 0;
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const int ledspan = 100;
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int pingtimer = -1;
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const int pingspan = 250;
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int checktimer = 0;
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const int checkspan = 1000;
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int update = 0;
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// debug options
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boolean debug = true;
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// LED and Switch pins
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const int glight = 5;
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const int rlight = 6;
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const int topen = 2;
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const int tclose = 3;
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const int beeper = A5;
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void setLeds() {
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if (pingtimer >= 0) {
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if (hsopen) { // If space is not closed, beep three times with
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// beep
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if ((pingtimer > 220) && ((pingtimer / 5) % 2 == 1)) {
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digitalWrite(beeper, HIGH);
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} else {
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digitalWrite(beeper, LOW);
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}
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} else { // if closed, beep once
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// beep
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if ((pingtimer > 240) && ((pingtimer / 5) % 2 == 1)) {
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digitalWrite(beeper, HIGH);
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} else {
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digitalWrite(beeper, LOW);
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}
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}
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// blink like crazy
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if ((pingtimer / 2) % 2 == 1) {
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analogWrite(rlight, 255);
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analogWrite(glight, 255);
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} else {
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analogWrite(rlight, 0);
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analogWrite(glight, 0);
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}
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pingtimer--;
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} else {
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switch (ethernetstatus) {
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case 0: { // ethernet fail
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// blink red
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if (ledtimer < (ledspan / 2)) {
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analogWrite(rlight, 255);
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} else {
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analogWrite(rlight, 0);
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}
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analogWrite(glight, 0);
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break;
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}
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case -1: { // ethernet unknown
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// fade green
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if (ledtimer < (ledspan / 2)) {
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analogWrite(glight, (255 / (ledspan / 2) * ledtimer)); // fade up
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} else {
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analogWrite(glight, 255 - (255 / (ledspan / 2) *
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(ledtimer - (ledspan / 2)))); // fade down
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}
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analogWrite(rlight, 0);
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break;
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}
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case 1: { // ethernet ok
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switch (hsopen) {
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case 0: { // closed
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// red
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analogWrite(rlight, 255);
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analogWrite(glight, 0);
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break;
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}
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case 1: { // open
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// green
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analogWrite(rlight, 0);
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analogWrite(glight, 255);
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break;
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}
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case 2: { // wait
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// fade red and green
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if (ledtimer < (ledspan / 2)) {
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int tmp = (255 / (ledspan / 2) * ledtimer);
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analogWrite(glight, tmp); // fade up
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analogWrite(rlight, tmp); // fade up
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} else {
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int tmp =
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255 - (255 / (ledspan / 2) * (ledtimer - (ledspan / 2)));
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analogWrite(glight, tmp); // fade down
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analogWrite(rlight, tmp); // fade down
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}
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break;
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}
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case -1: { // unknown
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// fade red
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if (ledtimer < (ledspan / 2)) {
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analogWrite(rlight, (255 / (ledspan / 2) * ledtimer)); // fade up
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} else {
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analogWrite(rlight,
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255 - (255 / (ledspan / 2) *
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(ledtimer - (ledspan / 2)))); // fade down
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}
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analogWrite(glight, 0);
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break;
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}
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}
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break;
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}
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}
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ledtimer++;
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if (ledtimer >= ledspan) {
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ledtimer = 0;
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}
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}
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checktimer++;
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if (checktimer >= checkspan) {
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checktimer = 0;
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update = 1;
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}
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}
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void setEth(int statuss) {
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ethernetstatus = statuss;
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if (debug) {
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Serial.println("Setting eth ");
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Serial.println(statuss);
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}
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setLeds();
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}
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void setRoom(int statuss) {
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hsopen = statuss;
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if (debug) {
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Serial.print("Setting room ");
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Serial.println(statuss);
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}
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setLeds();
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}
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void startEthernet() {
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client.stop();
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if (debug) {
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Serial.println("Connecting Arduino to network...");
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Serial.println();
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}
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setEth(-1);
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delay(1000);
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// Connect to network amd obtain an IP address using DHCP
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if (Ethernet.begin(mac) == 0) {
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if (debug) {
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Serial.println("DHCP Failed, reset Arduino to try again");
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Serial.println();
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}
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setEth(0);
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} else {
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if (debug) {
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Serial.println("Arduino connected to network using DHCP");
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Serial.println();
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}
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setEth(1);
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}
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if (debug) {
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Serial.println("DONE");
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Serial.println();
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}
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delay(1000);
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}
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// reads out the status returned by the server and sets the LED's appropriately.
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// the mode is defied by the intended call:
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void readServerStatus(int mode) {
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char lastsign = '0';
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boolean readStatus = false;
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while (client.connected()) {
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if (client.available()) {
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// read incoming bytes:
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char inChar = client.read();
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// add incoming byte to end of line:
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currentLine += inChar;
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if (debug) {
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Serial.print(inChar);
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}
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// if you get a newline, clear the line:
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if (inChar == '\n') {
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currentLine = "";
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if (lastsign == '\n') { // /r/n /r/n is the end of a header
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readStatus = true; // start to parse the content of the line
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if (debug) {
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Serial.println("##END OF HEADER##");
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}
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}
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}
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if (readStatus) {
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if (currentLine.startsWith("true", 0)) {
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if (debug) {
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Serial.println("");
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}
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switch (mode) {
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case 0:
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setRoom(1);
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break;
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case 1:
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if (debug) {
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Serial.println("Wink Wink");
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}
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pingtimer = pingspan;
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break;
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}
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// close the connection to the server:
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client.stop();
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return;
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}
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if (currentLine.startsWith("false", 0)) {
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if (debug) {
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Serial.println("");
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}
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switch (mode) {
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case 0:
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setRoom(0);
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break;
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case 1:
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if (debug) {
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Serial.println("No Wink");
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}
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break;
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}
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// close the connection to the server:
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client.stop();
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return;
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}
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}
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if (inChar != '\r') { // removes /r so we dan test if the header end with
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// two newlines, hacky but works.
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lastsign = inChar;
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}
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}
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}
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setRoom(-1);
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client.stop();
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}
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void TriggerServerReq(String s, int mode) {
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// attempt to connect, and wait a millisecond:
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if (debug) {
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Serial.println("connecting to server... Status req");
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}
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if (client.connect(SERVER_DOMAIN, 80)) {
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if (debug) {
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Serial.println("making HTTP request...");
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}
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// make HTTP GET request to server:
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client.println("GET " + s + " HTTP/1.1");
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client.println("HOST: " SERVER_DOMAIN);
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client.println("Connection: close");
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client.println();
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readServerStatus(mode);
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} else {
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if (debug) {
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Serial.println("Not connected...");
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}
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}
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// note the time of this connect attempt:
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}
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void RequestState() {
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TriggerServerReq("/api/status-s.php", 0);
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}
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// Status LED pins
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void setup() {
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pinMode(glight, OUTPUT);
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pinMode(rlight, OUTPUT);
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pinMode(beeper, OUTPUT);
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digitalWrite(beeper, LOW);
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// Buttons with pullup resistor
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pinMode(topen, INPUT);
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pinMode(tclose, INPUT);
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digitalWrite(topen, HIGH);
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digitalWrite(tclose, HIGH);
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// Start Serial for debugging on the Serial Monitor
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if (debug) {
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Serial.begin(9600);
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}
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// Start Ethernet on Arduino
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setEth(-1);
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setRoom(2);
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Timer1.initialize(20000); // 50 mal die Sekunde
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Timer1.attachInterrupt(setLeds);
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startEthernet();
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delay(1000);
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// Get current Status
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RequestState();
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}
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void TriggerServerUpdate(boolean stat) {
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// attempt to connect, and wait a millisecond:
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if (debug) {
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Serial.println("connecting to server... Update Req");
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}
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if (client.connect(SERVER_DOMAIN, 80)) {
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if (debug) {
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Serial.println("making HTTP request...");
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}
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// make HTTP GET request to server:
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String s = (stat ? "true" : "false");
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client.println("GET /api/update.php?open=" + s + "&apikey=" UPDATE_API_KEY +
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" HTTP/1.1");
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client.println("HOST: " SERVER_DOMAIN);
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client.println("Connection: close");
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client.println();
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readServerStatus(0);
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} else {
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if (debug) {
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Serial.println("Not connected...");
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}
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}
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// note the time of this connect attempt:
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}
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void readButtons() {
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if ((digitalRead(topen) == LOW) && (hsopen != 1)) {
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// startEthernet();
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setRoom(2);
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TriggerServerUpdate(true);
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}
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if ((digitalRead(tclose) == LOW) && (hsopen != 0)) {
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// startEthernet();
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setRoom(2);
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TriggerServerUpdate(false);
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}
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}
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void RequestPing() {
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TriggerServerReq("/api/ping-get.php?apikey=" PING_GET_API_KEY, 1);
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}
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void launchUpdate() {
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if (update == 1) {
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RequestPing();
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RequestState();
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update = 0;
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}
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}
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void loop() {
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readButtons();
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launchUpdate();
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}
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// This just reads the server return and logs it to the serial
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//@deprecated
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void readServerReturn() {
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// if(debug){Serial.println("readServerReturn ... ");}
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while (client.connected()) {
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if (client.available()) {
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char c = client.read();
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if (debug) {
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Serial.print(c);
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}
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}
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}
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if (debug) {
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Serial.println();
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}
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if (debug) {
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Serial.println("disconnecting.");
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}
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client.stop();
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}
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