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662 lines
19 KiB
662 lines
19 KiB
#include <Arduino.h>
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#include <ESP8266WiFi.h>
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#include <ESPAsyncTCP.h>
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#include <ESPAsyncWebServer.h>
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#include <AsyncElegantOTA.h>
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#include <Wire.h>
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#include <LiquidCrystal.h>
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#include <EEPROM.h> // to store number of coffees made and pumped water
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AsyncWebServer server(80);
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// This next variable is used to get current "time" in ms and break out of while cycles that need a time limit safeguard
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unsigned long startTime;
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// WiFi settings
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const char* ssid = "LILiK_WiFi"; //replace with your SSID
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const char* password = "pippopippo"; //password
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String hostname = "PyCoffee";
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int wifiStatus = 0; // variable to store status (connected/disconnected, used by LCDprint)
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// string to store coffee style from HTML
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String input_field = ""; // string for coffee type
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String input_field2 = ""; // string for serial commands
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// HTML WEB interface
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const char index_html[] PROGMEM = R"rawliteral(
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<!DOCTYPE HTML><html><head>
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<title>PyCoffee HTML interface</title>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<style>
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html {display: inline-block; text-align: center;}
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</style>
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</head><body>
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<a>Ciao! Sono la macchina del caffe' della 117bis!</a><br>
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<a>Seleziona il tipo di caffe' e conferma</a><br><br>
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<form action="/get">
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<select name="coffee_input">
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<option value="Ristretto">Ristretto</option>
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<option value="Espresso">Espresso</option>
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<option value="Lungo">Lungo</option>
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</select><br><br>
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<input type="submit" value="Conferma">
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</form>
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<br><br>
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<a>Puoi mandare comandi a Arduino via seriale</a><br>
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<a>usa 'exit' per uscire dall'ultimo comando seriale</a><br><br>
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<form action="/serial">
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<select name="serial_input">
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<option value="exit">Exit Command</option>
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<option value="dryr">PerformDryRun</option>
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<option value="noco">NoCoffeeRun</option>
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<option value="clea">Self-Clean</option>
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<option value="make">Make Coffee</option>
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<option value="pump">pumpWater</option>
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<option value="pres">Press</option>
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<option value="unpr">un-Press</option>
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<option value="heat">Heat Boiler</option>
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<option value="grin">GrindPowder</option>
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<option value="drop">Drop Powder</option>
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<option value="rist">setRistretto</option>
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<option value="espr">setEspresso</option>
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<option value="long">setLungo</option>
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</select><br><br>
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<input type="submit" value="Invia Comando">
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</form>
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<br><br>
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<a>Consulta la pagina Gitea per maggiori informazioni</a><br><br>
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<a>Aggiornamento firmware:</a> <br>
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<a href='/update'>⬆️ OTA Firmware_Update ⬆️</a><br><br>
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<a>Codice sorgente (su LILiK projects):</a> <br>
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<a href='https://projects.lilik.it/LILiK/PyCoffee_ESP8266'>☕Gitea☕</a><br><br>
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</body></html>)rawliteral";
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// input parameter for html server
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const char* input_paramter1 = "coffee_input";
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const char* input_paramter2 = "serial_input";
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// enable http coffee making on server request
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int httpCoffee = 0;
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int serialCommand = 0;
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// button pins
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const int sel = 0, enter = 2;
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// Global string, allows serial in
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String readString;
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// coffee type variable
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String type = "Espresso";
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// number of coffees made and seconds of pumped water since last tray empty/water refill
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// used by checkTrayWater() function
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int coffeesDone = 0;
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int pumpedS = 0;
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const int MaxCoffees = 10;
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const int MaxPumped = 205;
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// Support string to store stuff to be sent over serial
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String serialOUTbuffer = "none";
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// Variables to store lines to be printed on LCD:
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String line1 = "";
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String line2 = "";
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// only refresh LCD when needed
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int printed = 0;
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// LCD pins <--> ESP8266 LOLIN D1 pins
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const int e_RS = 4, e_EN = 5, e_D6 = 12, e_D7 = 13, e_D5 = 14, e_D8 = 15;
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LiquidCrystal lcd(e_RS, e_EN, e_D6, e_D7, e_D5, e_D8);
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// Custom character matrix (coffee cup left side)
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byte cupL[8] = {0b00001,0b00010,0b00010,0b00001,0b00001,0b00000,0b00111,0b00100};
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// Custom character matrix (coffee cup center)
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byte cupC[8] = {0b00100,0b00101,0b01001,0b01000,0b00100,0b00000,0b11111,0b00000};
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// Custom character matrix (coffee cup right side)
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byte cupR[8] = {0b10000,0b00000,0b00000,0b10000,0b10000,0b00000,0b11000,0b01110};
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// Custom character matrix (coffee cup left side line 2)
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byte cupL1[8] = {0b00100,0b00100,0b00100,0b00010,0b01111,0b01000,0b00111,0b00000};
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// Custom character matrix (coffee cup center line 2)
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byte cupC1[8] = {0b00000,0b00000,0b00000,0b00000,0b11111,0b00000,0b11111,0b00000};
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// Custom character matrix (coffee cup right side line 2)
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byte cupR1[8] = {0b01010,0b01010,0b01110,0b10000,0b11100,0b00100,0b11000,0b00000};
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// Custom character matrix (WiFi connected/disconnected)
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byte wifiok[8] = {0b00000,0b01110,0b10001,0b00100,0b01010,0b00000,0b00000,0b00100};
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byte wifino[8] = {0b00000,0b10001,0b01010,0b00100,0b01010,0b10001,0b00000,0b00100};
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void notFound(AsyncWebServerRequest *request) {
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request->send(404, "text/plain", "Not found");
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}
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//_____________________________________________________________________________
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// the setup function runs once when you press reset or power the board
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void setup(void) {
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// check how many coffees were done and seconds of pumped water from EEPROM
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coffeesDone = (EEPROM.read(0));
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pumpedS = (EEPROM.read(1));
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// Set buttons as inputs with internal pull-ups
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pinMode(enter, INPUT_PULLUP);
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pinMode(sel, INPUT_PULLUP);
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// initialize serial:
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Serial.begin(9600);
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// Make custom characters available to LCD to paint a cute coffee cup
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lcd.createChar(0, cupL);
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lcd.createChar(1, cupC);
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lcd.createChar(2, cupR);
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lcd.createChar(3, cupL1);
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lcd.createChar(4, cupC1);
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lcd.createChar(5, cupR1);
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lcd.createChar(6, wifiok);
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lcd.createChar(7, wifino);
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lcd.begin(16, 2); // set up number of columns and rows
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lcd.clear(); // Clear LCD
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// Show boot animation on LCD
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bootAnimation();
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WiFi.mode(WIFI_STA);
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// WiFi.config(INADDR_NONE, INADDR_NONE, INADDR_NONE, INADDR_NONE);
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WiFi.setHostname(hostname.c_str()); //define hostname
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WiFi.begin(ssid, password);
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connectedTo();
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// Send web page with input fields to client
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server.on("/", HTTP_GET, [](AsyncWebServerRequest * request) {
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request->send(200, "text/html", index_html);
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});
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// Get data from menu
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// coffee
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server.on("/get", HTTP_GET, [] (AsyncWebServerRequest *request) {
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if (request->hasParam(input_paramter1)) {
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type = request->getParam(input_paramter1)->value();
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httpCoffee = 1;
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}
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request->send_P(200, "text/html", index_html); // Re-send main page, with data!
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});
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// serial commands
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server.on("/serial", HTTP_GET, [] (AsyncWebServerRequest *request) {
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if (request->hasParam(input_paramter2)) {
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if (serialOUTbuffer != "") {
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serialOUTbuffer = request->getParam(input_paramter2)->value();
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serialCommand = 1;
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httpCoffee = 0;
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}
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}
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request->send_P(200, "text/html", index_html); // Re-send main page, with data!
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});
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// in case of error:
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server.onNotFound(notFound);
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AsyncElegantOTA.begin(&server); // Start ElegantOTA
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server.begin();
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Serial.println("HTTP server started");
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// Print selection screen
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printed = 1;
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// tell the Arduino we're ready
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serialOUTbuffer = "read";
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delay(100);
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writeSerial();
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}
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//_____________________________________________________________________________
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void loop() {
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// the loop function runs over and over again forever
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checkTrayWater();
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delay(10);
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serialFromHTTP();
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// select type of brew by pressing the sel button
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if (digitalRead(sel) == LOW && type == "Espresso") {
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type = "Lungo";
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line1 = "Selection";
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line2 = type;
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LCDprint();
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delay(500);
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}
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else if (digitalRead(sel) == LOW && type == "Lungo") {
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type = "Ristretto";
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line1 = "Selection";
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line2 = type;
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LCDprint();
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delay(500);
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}
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else if (digitalRead(sel) == LOW && type == "Ristretto") {
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type = "Espresso";
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line1 = "Selection";
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line2 = type;
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LCDprint();
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delay(500);
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}
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else if (Serial.available() > 0) {
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// read the incoming data: (we only care about the first few characters, I've chosen 4)
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readString = "";
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serialRead();
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String incomingData = readString.substring(0,4);
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// are we heating the boiler to vapor temperature?
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if (incomingData == "Vapo") {
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line1 = "Heating";
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line2 = "Vapor";
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LCDprint();
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delay(1000);
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}
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if (incomingData == "reac") {
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line1 = "Vapor";
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line2 = "ok";
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LCDprint();
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delay(1000);
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printed = 1;
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delay(10000);
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serialOUTbuffer = "unpr";
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writeSerial();
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delay(100);
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}
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}
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refreshMenu();
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delay(100);
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// check if data has been sent on serial from Arduino,
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// send commands to arduino and display corresponding messages on LCD
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// this is the main function dedicated to making coffee and reporting errors.
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serialCoffeeCommandLCDInterface();
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}
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//_____________________________________________________________________________
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// this is how we read the input
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void serialRead() {
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while (Serial.available()) {
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delay(1);
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if (Serial.available() > 0) {
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char c = Serial.read();
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readString += c;}
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}
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}
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//_____________________________________________________________________________
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void bootAnimation() {
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delay(1000);
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line1 = "ESP_Coffee";
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line2 = "Release 1";
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LCDprint();
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delay(1000);
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lcd.setCursor(11,0); //print coffee cup top using uint8 method
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lcd.write((uint8_t)0);
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delay(10);
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lcd.write((uint8_t)1);
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delay(10);
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lcd.write((uint8_t)2);
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delay(10);
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lcd.setCursor(11,1); //print coffee cup bottom using uint8 method
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lcd.write((uint8_t)3);
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delay(10);
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lcd.write((uint8_t)4);
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delay(10);
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lcd.write((uint8_t)5);
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delay(2000);
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}
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//_____________________________________________________________________________
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void connectedTo() {
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startTime = millis();
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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if (millis() - startTime > 60000) {
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Serial.println("WiFi connection timeout");
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line1 = "Timeout at SSID";
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line2 = ssid;
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LCDprint();
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delay(10000);
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break;
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}
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else {
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wifiStatus = 1;
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}
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}
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Serial.println("");
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Serial.println("WiFi connected");
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Serial.println("IP address: ");
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Serial.println(WiFi.localIP()); //You can get IP address assigned to ESP
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line1 = "SSID";
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line2 = ssid;
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LCDprint();
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delay(2000);
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line1 = "Connected to IP:";
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line2 = "";
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LCDprint();
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delay(10);
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lcd.setCursor(0, 1); // move cursor to (0, 1)
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lcd.print(WiFi.localIP()); // re-print line2 or IP won't print
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delay(2000);
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}
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//_____________________________________________________________________________
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void refreshMenu() {
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if (line1 == "Selection" && printed == 1) {
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lcd.clear();
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lcd.setCursor(0, 0); // move cursor to (0, 0)
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lcd.print(line1); // print line1
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delay(10);
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lcd.setCursor(15, 0); // move cursor to (14, 0)
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// print wifi logo depending on connection starus
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if (wifiStatus == 1) {
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lcd.write((uint8_t)6);
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delay(10);
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}
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else if (wifiStatus == 0) {
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lcd.write((uint8_t)7);
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delay(10);
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}
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lcd.setCursor(0, 1); // move cursor to (0, 1)
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lcd.print(line2); // print line2
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delay(10);
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printed = 0;
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}
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}
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//_____________________________________________________________________________
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void LCDprint() {
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lcd.clear();
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lcd.setCursor(0, 0); // move cursor to (0, 0)
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lcd.print(line1); // print line1
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delay(10);
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lcd.setCursor(15, 0); // move cursor to (14, 0)
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// print wifi logo depending on connection starus
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if (wifiStatus == 1) {
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lcd.write((uint8_t)6);
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delay(10);
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}
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else if (wifiStatus == 0) {
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lcd.write((uint8_t)7);
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delay(10);
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}
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lcd.setCursor(0, 1); // move cursor to (0, 1)
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lcd.print(line2); // print line2
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delay(10);
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}
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//_____________________________________________________________________________
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void writeSerial() {
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Serial.println(serialOUTbuffer);
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}
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//_____________________________________________________________________________
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void serialFromHTTP() {
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if (serialCommand == 1){
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serialCommand = 0;
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line1 = "serialCom";
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line2 = serialOUTbuffer;
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LCDprint();
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delay(1000);
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writeSerial();
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while (serialOUTbuffer != "exit" && digitalRead(sel) == HIGH ) {
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if (Serial.available() > 0) {
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// read the incoming data: (we only care about the first few characters, I've chosen 4)
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readString = "";
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serialRead();
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String incomingData = readString.substring(0,16);
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Serial.print("serial put from Arduino:\n");
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Serial.print(incomingData);
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Serial.print("\n");
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if (serialOUTbuffer != "none") {
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line1 = serialOUTbuffer;
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}
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line2 = incomingData;
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LCDprint();
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delay(100);
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serialOUTbuffer = "none";
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writeSerial();
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}
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}
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line1 = "Selection";
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line2 = type;
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LCDprint();
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delay(500);
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}
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}
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//_____________________________________________________________________________
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void checkTrayWater() {
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// section dedicated to empty tray and refill water messages
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if ((EEPROM.read(0)) < 0 or (EEPROM.read(0)) > MaxCoffees + 1) {
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EEPROM.write(0, 0);
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EEPROM.commit();
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}
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else if ((EEPROM.read(0)) < coffeesDone) {
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EEPROM.write(0, coffeesDone);
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EEPROM.commit();
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}
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if ((EEPROM.read(1)) < 0 or (EEPROM.read(1)) > MaxPumped + 1) {
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EEPROM.write(1, 0);
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EEPROM.commit();
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}
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else if ((EEPROM.read(1)) < pumpedS) {
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EEPROM.write(1, pumpedS);
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EEPROM.commit();
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}
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if (coffeesDone > (MaxCoffees - 1)) {
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lcd.clear();
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while (digitalRead(enter) == HIGH) {
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lcd.setCursor(0, 0); // move cursor to (0, 0)
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lcd.print("Empty Tray"); // print line1
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delay(10);
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lcd.setCursor(0, 1); // move cursor to (0, 1)
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lcd.print("Then hold Make"); // print line2
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delay(10);
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}
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coffeesDone = 0;
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EEPROM.write(0, coffeesDone);
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EEPROM.commit();
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delay(500);
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LCDprint();
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delay(500);
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printed = 1;
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}
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if (pumpedS > (MaxPumped + 1)) {
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lcd.clear();
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while (digitalRead(enter) == HIGH) {
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lcd.setCursor(0, 0); // move cursor to (0, 0)
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lcd.print("Refill Water"); // print line1
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delay(10);
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lcd.setCursor(0, 1); // move cursor to (0, 1)
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lcd.print("Then hold Make"); // print line2
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delay(10);
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}
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pumpedS = 0;
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EEPROM.write(1, pumpedS);
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EEPROM.commit();
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delay(500);
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LCDprint();
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delay(500);
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printed = 1;
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}
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line1 = "Selection";
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line2 = type;
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}
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//_____________________________________________________________________________
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void serialCoffeeCommandLCDInterface() {
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if (digitalRead(enter) == LOW or httpCoffee == 1) {
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httpCoffee = 0;
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if (type == "Espresso") {
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serialOUTbuffer = "espr";
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pumpedS = pumpedS + 15;
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}
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else if (type == "Lungo") {
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serialOUTbuffer = "long";
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pumpedS = pumpedS + 18;
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}
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else if (type == "Ristretto") {
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serialOUTbuffer = "rist";
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pumpedS = pumpedS + 12;
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}
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writeSerial();
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delay(500);
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serialOUTbuffer = "make";
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writeSerial();
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}
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if (Serial.available() > 0) {
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// read the incoming data: (we only care about the first few characters, I've chosen 4)
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readString = "";
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serialRead();
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String incomingData = readString.substring(0,4);
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Serial.print(incomingData);
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Serial.print("\n");
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if (incomingData == "Maki") {
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// Display making coffee message
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line1 = "Making";
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line2 = type;
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LCDprint();
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delay(10);
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lcd.setCursor(11,0); //print coffee cup top using uint8 method
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lcd.write((uint8_t)0);
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delay(10);
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lcd.write((uint8_t)1);
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delay(10);
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lcd.write((uint8_t)2);
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delay(10);
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lcd.setCursor(11,1); //print coffee cup bottom using uint8 method
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lcd.write((uint8_t)3);
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delay(10);
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lcd.write((uint8_t)4);
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delay(10);
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lcd.write((uint8_t)5);
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delay(10);
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}
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if (incomingData == "u-Th") {
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Serial.print("Thermocouple: unplugged or failed\n");
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while (true) {
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// Unrecoverable error has occurred during heating, lock the machine
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line1 = "ThermoCouple err";
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line2 = "Unplugged/failed";
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LCDprint();
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delay(10000);
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}
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}
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if (incomingData == "p-Th") {
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Serial.print("Thermocouple: positioning or relay fault\n");
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while (true) {
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// Unrecoverable error has occurred during heating, lock the machine
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line1 = "ThermoCouple err";
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line2 = "Fallen/relayFail";
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LCDprint();
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delay(10000);
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}
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}
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if (incomingData == "Erro") {
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Serial.print("Unrecoverable error in Arduino subsystem. Please restart\n");
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while (true) {
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// Unrecoverable error has occurred during heating, lock the machine
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line1 = "Enrecoverable";
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line2 = "Error. Restart.";
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LCDprint();
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delay(10000);
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}
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}
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if (incomingData == "h-ta") {
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Serial.print("took too long to warm boiler, this is just a warning. Everything should be fine\n");
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line1 = "Heating too long";
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line2 = "Continuing...";
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LCDprint();
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}
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if (incomingData == "p-en") {
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Serial.print("Unable to Press. Please restart\n");
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while (true) {
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// Unrecoverable error has occurred while pressing, lock the machine
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line1 = "Press failed";
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line2 = "Error. Restart.";
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LCDprint();
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delay(10000);
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}
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}
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if (incomingData == "u-en") {
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Serial.print("Unable to unPress. Please restart\n");
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while (true) {
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// Unrecoverable error has occurred while unpressing, lock the machine
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line1 = "unPress failed";
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line2 = "Error. Restart.";
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LCDprint();
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delay(10000);
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}
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}
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if (incomingData == "refi") {
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Serial.print("refill coffee and send cont command\n");
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line1 = "Refill Coffee";
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line2 = "then tap make";
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LCDprint();
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while (true) {
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delay(10);
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if (digitalRead(enter) == LOW) {
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line1 = "Refilled";
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line2 = "continuing";
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LCDprint();
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serialOUTbuffer = "cont";
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writeSerial();
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break;
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}
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}
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}
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if (incomingData == "g-fa") {
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Serial.print("g-failure: second grinding failure, check grinder!\n");
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while (true) {
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// Unrecoverable error has occurred during grinding, lock the machine
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line1 = "Grinding failed";
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line2 = "Check Machine";
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LCDprint();
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delay(10000);
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}
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}
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if (incomingData == "Comp") {
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coffeesDone++;
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Serial.print("Made coffee\n");
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line1 = "Coffee Done :)";
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line2 = "Enjoy!";
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LCDprint();
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delay(5000);
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line1 = "Selection";
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delay(500);
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}
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}
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}
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