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PyCoffee_ESP8266
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uploaded first functional beta

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studentidisinistra 2 years ago
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      Pinouts/D1-mini-pinout.png
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      Pinouts/Machine Pinout.jpg
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      Pinouts/config.coffee
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      Pinouts/pinoutLCD.png
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      PyCoffeeESP8266/PyCoffeeESP8266.ino
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      PyCoffeeESP8266/PyCoffeeESP8266.ino.d1_mini.bin
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      PyCoffeeNano/PyCoffeeNano.ino

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generalConfig =
serialDevice: '/dev/coffee'
logFilename: 'coffee.log'
tempTimeout: 50
pumpCoefficient: 1.35
hardwareConfig =
coffeeTemp: 0.758
coffeeTemp2: 0.758 + 0.1
grinderPin: 9
pumpPin: 8
boilerPin: 6
powderPin: 7
wheelPin: 10
invertWheelPin: 11
powderSensorPin: 2
vaporSensorPin: 5
tempSensorPin: 7
wheelStartSensorPin: 4
wheelEndSensorPin: 3
accountingConfig =
coffeePrice: 20
exports.general = generalConfig
exports.hardware = hardwareConfig
exports.accounting = accountingConfig

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PyCoffeeESP8266/PyCoffeeESP8266.ino View File

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#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESPAsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <AsyncElegantOTA.h>
#include <Wire.h>
#include <LiquidCrystal.h>
AsyncWebServer server(80);
// This next variable is used to get current "time" in ms and break out of while cycles that need a time limit safeguard
unsigned long startTime;
// WiFi settings
const char* ssid = "LILiK_WiFi"; //replace with your SSID
const char* password = "pippopippo"; //password
//const char* ssid = "AulaStud"; //replace with your SSID
//const char* password = "cinimerda"; //password
String hostname = "PyCoffee";
// string to store coffee style from HTML
String input_field = "espr";
// HTML WEB interface
const char index_html[] PROGMEM = R"rawliteral(
<!DOCTYPE HTML><html><head>
<title>PyCoffee HTML interface</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
html {display: inline-block; text-align: center;}
</style>
</head><body>
<a>Ciao! Sono la macchina del caffe' della 117bis!</a><br>
<a>Seleziona il tipo di caffe' e conferma</a><br><br>
<form action="/get">
<select name="coffee_input">
<option value="Ristretto">Ristretto</option>
<option value="Espresso">Espresso</option>
<option value="Lungo">Lungo</option>
</select><br><br>
<input type="submit" value="Conferma">
</form>
<br><br>
<a>Clicca qui sotto per aggiornare il firmware:</a> <br>
<a href='/update'>&#11014;&#65039; OTA Firmware_Update &#11014;&#65039;</a><br><br>
<a>Codice sorgente (su LILiK projects):</a> <br>
<a href='https://projects.lilik.it/LILiK/PyCoffee_ESP8266'>&#9749;Gitea&#9749;</a><br><br>
</body></html>)rawliteral";
// input parameter for html server
const char* input_paramter1 = "coffee_input";
// enable http coffee making on server request
int httpCoffee = 0;
// button pins
const int sel = 0, enter = 2;
// Global string
String readString;
// coffee type variable
String type = "Espresso";
// Support string to store stuff to be sent over serial
String serialOUTbuffer = "none";
// Variables to store lines to be printed on LCD:
String line1 = "";
String line2 = "";
// LCD pins <--> ESP8266 LOLIN D1 pins
const int e_RS = 4, e_EN = 5, e_D6 = 12, e_D7 = 13, e_D5 = 14, e_D8 = 15;
LiquidCrystal lcd(e_RS, e_EN, e_D6, e_D7, e_D5, e_D8);
// Custom character matrix (coffee cup left side)
byte cupL[8] = {0b00001,0b00010,0b00010,0b00001,0b00001,0b00000,0b00111,0b00100};
// Custom character matrix (coffee cup center)
byte cupC[8] = {0b00100,0b00101,0b01001,0b01000,0b00100,0b00000,0b11111,0b00000};
// Custom character matrix (coffee cup right side)
byte cupR[8] = {0b10000,0b00000,0b00000,0b10000,0b10000,0b00000,0b11000,0b01110};
// Custom character matrix (coffee cup left side line 2)
byte cupL1[8] = {0b00100,0b00100,0b00100,0b00010,0b01111,0b01000,0b00111,0b00000};
// Custom character matrix (coffee cup center line 2)
byte cupC1[8] = {0b00000,0b00000,0b00000,0b00000,0b11111,0b00000,0b11111,0b00000};
// Custom character matrix (coffee cup right side line 2)
byte cupR1[8] = {0b01010,0b01010,0b01110,0b10000,0b11100,0b00100,0b11000,0b00000};
void notFound(AsyncWebServerRequest *request) {
request->send(404, "text/plain", "Not found");
}
//_____________________________________________________________________________
// the setup function runs once when you press reset or power the board
void setup(void) {
// Set buttons as inputs with internal pull-ups
pinMode(enter, INPUT_PULLUP);
pinMode(sel, INPUT_PULLUP);
// initialize serial:
Serial.begin(9600);
// Make custom characters available to LCD to paint a cute coffee cup
lcd.createChar(0, cupL);
lcd.createChar(1, cupC);
lcd.createChar(2, cupR);
lcd.createChar(3, cupL1);
lcd.createChar(4, cupC1);
lcd.createChar(5, cupR1);
lcd.begin(16, 2); // set up number of columns and rows
lcd.clear(); // Clear LCD
// Show boot animation on LCD
bootAnimation();
WiFi.mode(WIFI_STA);
// WiFi.config(INADDR_NONE, INADDR_NONE, INADDR_NONE, INADDR_NONE);
WiFi.setHostname(hostname.c_str()); //define hostname
WiFi.begin(ssid, password);
connectedTo();
// Send web page with input fields to client
server.on("/", HTTP_GET, [](AsyncWebServerRequest * request) {
request->send(200, "text/html", index_html);
});
// Get data from menu
server.on("/get", HTTP_GET, [] (AsyncWebServerRequest *request) {
if (request->hasParam(input_paramter1)) {
type = request->getParam(input_paramter1)->value();
httpCoffee = 1;
}
request->send_P(200, "text/html", index_html); // Re-send main page, with data!
});
// in case of error:
server.onNotFound(notFound);
AsyncElegantOTA.begin(&server); // Start ElegantOTA
server.begin();
Serial.println("HTTP server started");
// Print selection screen
line1 = "Selection";
line2 = type;
LCDprint();
// tell the Arduino we're ready
serialOUTbuffer = "read";
delay(100);
writeSerial();
}
//_____________________________________________________________________________
void loop() {
// the loop function runs over and over again forever
delay(10);
// select type of brew by pressing the sel button
if (digitalRead(sel) == LOW && type == "Espresso") {
type = "Lungo";
line1 = "Selection";
line2 = type;
LCDprint();
delay(500);
}
else if (digitalRead(sel) == LOW && type == "Lungo") {
type = "Ristretto";
line1 = "Selection";
line2 = type;
LCDprint();
delay(500);
}
else if (digitalRead(sel) == LOW && type == "Ristretto") {
type = "Espresso";
line1 = "Selection";
line2 = type;
LCDprint();
delay(500);
}
// check if data has been sent on serial from Arduino,
// send commands to arduino and display corresponding messages on LCD
// this is the main function dedicated to making coffee and reporting errors.
serialCoffeeCommandLCDInterface();
}
//_____________________________________________________________________________
// this is how we read the input
void serialRead() {
while (Serial.available()) {
delay(1);
if (Serial.available() > 0) {
char c = Serial.read();
readString += c;}
}
}
//_____________________________________________________________________________
void bootAnimation() {
delay(1000);
line1 = "ESP_Coffee";
line2 = "Beta 1";
LCDprint();
delay(1000);
lcd.setCursor(12,0); //print coffee cup top using uint8 method
lcd.write((uint8_t)0);
lcd.write((uint8_t)1);
lcd.write((uint8_t)2);
lcd.setCursor(12,1); //print coffee cup bottom using uint8 method
lcd.write((uint8_t)3);
lcd.write((uint8_t)4);
lcd.write((uint8_t)5);
delay(2000);
}
//_____________________________________________________________________________
void connectedTo() {
startTime = millis();
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
if (millis() - startTime > 60000) {
Serial.println("WiFi connection timeout");
line1 = "Timeout at SSID";
line2 = ssid;
LCDprint();
break;
}
delay(10000);
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP()); //You can get IP address assigned to ESP
line1 = "SSID";
line2 = ssid;
LCDprint();
delay(2000);
line1 = "Connected to IP:";
line2 = "";
LCDprint();
lcd.setCursor(0, 1); // move cursor to (0, 0)
lcd.print(WiFi.localIP()); // re-print line2 or IP won't print
delay(2000);
}
//_____________________________________________________________________________
void LCDprint() {
lcd.clear();
lcd.setCursor(0, 0); // move cursor to (0, 0)
lcd.print(line1); // print line1
lcd.setCursor(0, 1); // move cursor to (0, 0)
lcd.print(line2); // print line2
}
//_____________________________________________________________________________
void writeSerial() {
Serial.println(serialOUTbuffer);
}
//_____________________________________________________________________________
void serialCoffeeCommandLCDInterface() {
if (digitalRead(enter) == LOW or httpCoffee == 1) {
httpCoffee = 0;
if (type == "Espresso") {
serialOUTbuffer = "espr";
}
else if (type == "Lungo") {
serialOUTbuffer = "long";
}
else if (type == "Ristretto") {
serialOUTbuffer = "rist";
}
writeSerial();
delay(500);
serialOUTbuffer = "make";
writeSerial();
}
if (Serial.available() > 0) {
// read the incoming data: (we only care about the first few characters, I've chosen 4)
readString = "";
serialRead();
String incomingData = readString.substring(0,4);
Serial.print(incomingData);
Serial.print("\n");
if (incomingData == "Maki") {
// Display making coffee message
line1 = "Making";
line2 = type;
LCDprint();
lcd.setCursor(12,0); //print coffee cup top using uint8 method
lcd.write((uint8_t)0);
lcd.write((uint8_t)1);
lcd.write((uint8_t)2);
lcd.setCursor(12,1); //print coffee cup bottom using uint8 method
lcd.write((uint8_t)3);
lcd.write((uint8_t)4);
lcd.write((uint8_t)5);
}
if (incomingData == "u-Th") {
Serial.print("Thermocouple: unplugged or failed\n");
while (true) {
// Unrecoverable error has occurred during heating, lock the machine
line1 = "ThermoCouple err";
line2 = "Unplugged/failed";
LCDprint();
delay(10000);
}
}
if (incomingData == "p-Th") {
Serial.print("Thermocouple: positioning or relay fault\n");
while (true) {
// Unrecoverable error has occurred during heating, lock the machine
line1 = "ThermoCouple err";
line2 = "Fallen/relayFail";
LCDprint();
delay(10000);
}
}
if (incomingData == "Erro") {
Serial.print("Unrecoverable error in Arduino subsystem. Please restart\n");
while (true) {
// Unrecoverable error has occurred during heating, lock the machine
line1 = "Enrecoverable";
line2 = "Error. Restart.";
LCDprint();
delay(10000);
}
}
if (incomingData == "h-ta") {
Serial.print("took too long to warm boiler, this is just a warning. Everything should be fine\n");
line1 = "Heating too long";
line2 = "Continuing...";
LCDprint();
}
if (incomingData == "p-en") {
Serial.print("Unable to Press. Please restart\n");
while (true) {
// Unrecoverable error has occurred while pressing, lock the machine
line1 = "Press failed";
line2 = "Error. Restart.";
LCDprint();
delay(10000);
}
}
if (incomingData == "u-en") {
Serial.print("Unable to unPress. Please restart\n");
while (true) {
// Unrecoverable error has occurred while unpressing, lock the machine
line1 = "unPress failed";
line2 = "Error. Restart.";
LCDprint();
delay(10000);
}
}
if (incomingData == "refi") {
Serial.print("refill coffee and send cont command\n");
line1 = "Refill Coffee";
line2 = "then tap make";
LCDprint();
while (true) {
delay(10);
if (digitalRead(enter) == LOW) {
line1 = "Refilled";
line2 = "continuing";
LCDprint();
serialOUTbuffer = "cont";
writeSerial();
break;
}
}
}
if (incomingData == "g-fa") {
Serial.print("g-failure: second grinding failure, check grinder!\n");
while (true) {
// Unrecoverable error has occurred during grinding, lock the machine
line1 = "Grinding failed";
line2 = "Check Machine";
LCDprint();
delay(10000);
}
}
if (incomingData == "Comp") {
Serial.print("Made coffee\n");
line1 = "Coffee Done :)";
line2 = "Enjoy!";
LCDprint();
delay(5000);
line1 = "Selection";
line2 = type;
LCDprint();
delay(500);
}
}
}

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// Pinout configuration
const int grinderPin = 9, pumpPin = 8, boilerPin = 6, powderPin = 7, wheelPin = 10, invertWheelPin = 11, powderSensorPin = 2, vaporSensorPin = 5, tempSensorPin = A7, wheelStartSensorPin = 4, wheelEndSensorPin = 3, redLED = 13, greenLED = 12;
// Global string
String readString;
// Thermistor config
// WARNING! while the old coffee machine used a PTC thermistor, this was replaced with an NTC one as it was more readily available
// Code must be adjusted accordingly if a PTC resistor is used once more!
int Vo;
float R1 = 10000; // <-- change this value to the resistance of the fixed resistor (so don't change PLS!)
float logR2, R2, T, Tc, Told;
float c1 = 7.9e-04, c2 = 1.85e-04, c3 = 2e-07; // Here's where you can perform actual calibration
// Variable to store desired Max boiler Temp
int desiredTemp = 70;
// Variables to Store errors:
int unrecoverableErr = 0;
int warning = 0;
// Variables for cleaning and other maintenance
int dry = 0;
int noCoffee = 0;
// Milliseconds to delay between each cycle
const int milliseconds = 10;
int timeratio = 1;
// pumpRatio is = seconds to pump water for and will be updated over serial
int pumpRatio = 15;
// This next variable is used to get current "time" in ms and break out of while cycles that need a time limit safeguard
unsigned long startTime;
void setup() {
// put your setup code here, to run once:
// first we set pins as I/O and initialize outputs LOW
pinMode(boilerPin, OUTPUT); pinMode(pumpPin, OUTPUT); pinMode(grinderPin, OUTPUT); pinMode(powderPin, OUTPUT); pinMode(wheelPin, OUTPUT); pinMode(invertWheelPin, OUTPUT); pinMode (redLED, OUTPUT); pinMode (greenLED, OUTPUT);
pinMode(powderSensorPin, INPUT); pinMode(vaporSensorPin, INPUT); pinMode(tempSensorPin, INPUT); pinMode(wheelStartSensorPin, INPUT); pinMode(wheelEndSensorPin, INPUT);
digitalWrite(grinderPin, LOW); digitalWrite(pumpPin, LOW); digitalWrite(boilerPin, LOW); digitalWrite(powderPin, LOW); digitalWrite(wheelPin, LOW); digitalWrite(invertWheelPin, LOW); digitalWrite(redLED, LOW); digitalWrite(greenLED, LOW);
// timeratio easily allows to determine how many cycles are required to make 1s pass (ms * ratio = 1s)
timeratio = 1000/milliseconds;
// initialize serial:
Serial.begin(9600);
delay(100);
Serial.write("Arduino running :)\n");
}
void loop() {
// put your main code here, to run repeatedly:
// Check if unrecoverable error has occurred:
if (unrecoverableErr == 1) {
delay(100);
Serial.write("Error has occurred.\n"); delay(100); Serial.write("Check machine and restart\n");
digitalWrite(greenLED, LOW);
while (true){
digitalWrite(redLED, HIGH);
delay(1000);
digitalWrite(redLED, LOW);
delay(1000);
}
}
// check if data has been sent on serial from ESP or PC:
if (Serial.available() > 0) {
// read the incoming data: (we only care about the first few characters, I've chosen 4)
readString = "";
serialRead();
String incomingData = readString.substring(0,4);
if (incomingData == "read") {
digitalWrite(greenLED, HIGH);
}
if (incomingData == "rist") {
// set parameters for ristretto:
delay(100);
Serial.write("Ristretto\n");
pumpRatio = 12;
}
if (incomingData == "espr") {
// set parameters for espresso:
delay(100);
Serial.write("Espresso\n");
pumpRatio = 15;
}
if (incomingData == "long") {
// set parameters for lungo:
delay(100);
Serial.write("Lungo\n");
pumpRatio = 18;
}
// check if the incoming data is "make":
if (incomingData == "make") {
// run the code to make coffee:
delay(100);
Serial.write("Making some coffee!\n");
makeCoffee();
}
if (incomingData == "dryr") {
// run the code to make a dry run (no powder, no water):
delay(100);
Serial.write("DryRun\n");
dry = 1;
makeCoffee();
}
if (incomingData == "noco") {
// run the code to make a dry run (no powder, nor water):
delay(100);
Serial.write("NoCo\n");
pumpRatio = 12;
noCoffee = 1;
makeCoffee();
}
if (incomingData == "pump") {
// run the code to just pump water:
pumpRatio = 12;
Pump();
}
if (incomingData == "pres") {
// only press
Press();
}
if (incomingData == "unpr") {
// only unpress
unPress();
}
if (incomingData == "heat") {
// only heat
desiredTemp = 85;
Heat();
}
if (incomingData == "clea") {
// clean machine
delay(100);
Serial.write("s-clean\n");
dry = 1;
makeCoffee();
noCoffee = 1;
makeCoffee();
delay(100);
Serial.write("S-cleaning done.\n");
}
}
delay(milliseconds);
}
// this is how we read the input
void serialRead() {
while (Serial.available()) {
delay(10);
if (Serial.available() > 0) {
char c = Serial.read();
readString += c;}
}
}
void Grind() {
digitalWrite(greenLED, LOW);
delay(100);
Serial.write("grinding...\n");
digitalWrite(grinderPin, HIGH);
startTime = millis();
while (true) {
delay(milliseconds);
if (digitalRead(powderSensorPin) == HIGH) {
digitalWrite(grinderPin, LOW);
delay(100);
Serial.write("Grinding Done\n");
break;
}
if (millis() - startTime > 30000) {
delay(100);
Serial.write("Warning, grinding took too long!\n");
delay(100);
Serial.write("Out of Coffee?\n");
warning = 1;
break;
}
}
digitalWrite(greenLED, HIGH);
}
void Drop() {
digitalWrite(greenLED, LOW);
delay(100);
Serial.write("dropping...\n");
digitalWrite(powderPin, HIGH);
delay(1000);
digitalWrite(powderPin, LOW);
delay(100);
Serial.write("Dropped\n");
digitalWrite(greenLED, HIGH);
}
void Heat() {
digitalWrite(greenLED, LOW);
digitalWrite(redLED, HIGH);
startTime = millis();
delay(100);
Serial.write("Heating to ");
delay(100);
Serial.print(desiredTemp);
delay(100);
Serial.write(" C\n");
Tc = 0;
Told = -100;
// monitor temperature and adjust boilerPin as needed:
while (true) {
// read temperature from tempSensorPin:
Vo = analogRead(tempSensorPin);
R2 = R1 * (1023.0 / (float)Vo - 1.0);
logR2 = log(R2);
T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
Tc = (T - 273.15);
if (millis() - startTime > 1000) {
Told = Tc; // support variable to store temp at beginning, so that we can be sure it's increasing
}
// check if temperature is within the acceptable range and break out of the loop without error if done heating:
if (Tc > desiredTemp) {
// temperature is within range, so break out of the loop:
digitalWrite(boilerPin, LOW);
delay(100);
Serial.write("reached desired temp\n");
delay(100);
Serial.print(Tc);
delay(100);
Serial.write(" C\n");
digitalWrite(redLED, LOW);
break;
}
if (Tc < -100) {
delay(100);
Serial.write("u-Thermocouple: unplugged or failed\n");
digitalWrite(boilerPin, LOW);
unrecoverableErr = 1;
break;
}
if (millis() - startTime > 20000 && Tc - Told < 5) {
delay(100);
Serial.write("p-Thermocouple: positioning or relay fault\n");
digitalWrite(boilerPin, LOW);
unrecoverableErr = 1;
break;
}
if (millis() - startTime > 30000) {
delay(100);
Serial.write("h-taking too long, continuing...\n");
digitalWrite(boilerPin, LOW);
digitalWrite(redLED, LOW);
break;
}
// We do this at the end so that the relay is not uselessly cycled
digitalWrite(boilerPin, HIGH);
delay(milliseconds);
}
digitalWrite(greenLED, HIGH);
}
void Press() {
digitalWrite(greenLED, LOW);
delay(100);
Serial.write("pressing...\n");
// Reset Press before every coffee
digitalWrite(invertWheelPin, HIGH);
delay(1000);
digitalWrite(invertWheelPin, LOW);
digitalWrite(wheelPin, HIGH);
startTime = millis();
while (true) {
delay(milliseconds);
if (digitalRead(wheelEndSensorPin) == HIGH) {
digitalWrite(wheelPin, LOW);
delay(100);
Serial.write("Pressed\n");
break;
}
if (millis() - startTime > 15000) {
delay(100);
Serial.write("p-end of pressing not detected\n");
digitalWrite(wheelPin, LOW);
unrecoverableErr = 1;
break;
}
}
digitalWrite(greenLED, HIGH);
}
void unPress() {
digitalWrite(greenLED, LOW);
delay(100);
Serial.write("unPressing...\n");
// Reset Press before every coffee
digitalWrite(wheelPin, HIGH);
delay(1000);
digitalWrite(wheelPin, LOW);
digitalWrite(invertWheelPin, HIGH);
startTime = millis();
while (true) {
delay(milliseconds);
if (digitalRead(wheelStartSensorPin) == HIGH) {
delay(1500);
digitalWrite(invertWheelPin, LOW);
delay(100);
Serial.write("UnPressed\n");
break;
}
if (millis() - startTime > 15000) {
delay(100);
Serial.write("u-end of unPressing not detected\n");
digitalWrite(invertWheelPin, LOW);
unrecoverableErr = 1;
break;
}
}
digitalWrite(greenLED, HIGH);
}
void Pump() {
digitalWrite(greenLED, LOW);
delay(100);
Serial.write("pumping Water...\n");
digitalWrite(pumpPin, HIGH);
delay(1000*pumpRatio);
digitalWrite(pumpPin, LOW);
delay(100);
Serial.write("Pumping water done\n");
digitalWrite(greenLED, HIGH);
}
void makeCoffee() {
// code to make coffee goes here...
// It would be much smarter to break down complicated functions into subroutines: press/unpress etc...
// Hence that's what we'll have done by the time the first release goes public ;)
// makeCoffee() can still run all the same, but clean() can use the same press/unpress code!
// care must be taken to place these functions earlier in the code, or the compiler will rightfully freak out
while (true) {
desiredTemp = 75;
Heat(); // First we pre-heat the boiler
if (unrecoverableErr == 1) {
break;
}
if (dry == 0 && noCoffee == 0) {
Grind(); // Grinding some nice roasted coffee beans!
}
// If grinder won't stop, coffee probably need to be refilled.
if (warning == 1) {
delay(100);
Serial.write("refill coffee and send cont command\n");
while (true) {
// check if data has been sent on serial from ESP or PC:
if (Serial.available() > 0) {
// read the incoming data: (we only care about the first few characters, I've chosen 4)
readString = "";
serialRead();
String incomingData = readString.substring(0,4);
if (incomingData == "cont") {
// coffee refilled, making is allowed to continue
Serial.write("Refilled\n");
warning = 0;
Grind(); // Grinding some nice roasted coffee beans!
if (warning == 1) {
unrecoverableErr = 1;
Serial.write("g-failure: second grinding failure, check grinder!\n");
}
break;
}
}
}
}
// Stop if grinding failed a second time
if (unrecoverableErr == 1) {
break;
}
delay(1000); // this delay is mandatory to prevent powder spillage caused by grinder inertia.
unPress(); // unpressing the press to reset the machine
if (unrecoverableErr == 1) {
break;
}
Drop(); // Dropping the powder in the press
delay(1000);
Press(); // Self explainatory
if (unrecoverableErr == 1) {
break;
}
if (dry == 0) {
digitalWrite(boilerPin, HIGH);
delay(1000);
Pump(); // Pump ratio (in seconds) will be read from serial input in final release
digitalWrite(boilerPin, LOW);
}
delay(3000); // Allow pressure to wane
unPress(); // unpressing the press to reset the machine
if (unrecoverableErr == 1) {
break;
}
delay(100);
Serial.write("Complete!\n");
dry = 0;
noCoffee = 0;
break;
}
}

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