basic lifecycle done (no data sync yet)

src/SmartDisplay.cpp

@@ -5,61 +5,86 @@ SmartDisplay::SmartDisplay(Adafruit_SSD1306 *display)
     m_display = display;
 }
 
-void SmartDisplay::printTeaConfigScreen(String teaName, int steepingSeconds, int editDir)
+void SmartDisplay::printTeaConfigScreen(TeaData tea)
 {
-    m_display->clearDisplay();
-    m_display->setTextColor(WHITE);
-    m_display->setTextSize(1);
-    m_display->setCursor(0, 0);
 
-    m_display->println(teaName);
-    m_display->println(" ");
+    resetDisplay();
+
+    m_display->println(tea.m_teaName);
+    m_display->print(tea.m_waterTemp);
+    m_display->println(" C");
 
     m_display->setTextSize(2);
-    m_display->print(steepingSeconds);
+    m_display->print(tea.m_steepingSeconds);
     m_display->print(" ");
 
-    if (editDir > 0)
-    {
-        for (int i = 0; i < editDir; i++)
-        {
-            m_display->print("+");
-        }
-    }
-    if (editDir < 0)
-    {
-        for (int i = editDir; i < 0; i++)
-        {
-            m_display->print("-");
-        }
-    }
     m_display->display();
 }
 
-void SmartDisplay::printTeaSteepingProgressScreen(String teaName, int steepingSeconds)
+void SmartDisplay::printTeaSteepingProgressScreen(TeaData tea, int remainingSeconds)
 {
-    m_display->clearDisplay();
-    m_display->setTextColor(WHITE);
-    m_display->setTextSize(1);
-    m_display->setCursor(0, 0);
+    resetDisplay();
 
-    m_display->println(teaName);
-    m_display->println("(Steeping)");
+    m_display->println(tea.m_teaName);
+    m_display->println(" (Steeping)");
 
     m_display->setTextSize(2);
-    m_display->println(steepingSeconds);
+    m_display->println(remainingSeconds);
 
     m_display->display();
 }
 
 void SmartDisplay::printWaitForRFIDScreen()
+{
+    resetDisplay();
+    m_display->println("Waiting for RFID scan...");
+
+    m_display->display();
+}
+
+void SmartDisplay::printRequestFeedbackScreen(TeaData teaData)
+{
+    resetDisplay();
+
+    m_display->println("Feedback on brew intensity");
+    m_display->println();
+    m_display->println("|less| perfect |more|");
+
+    m_display->display();
+}
+
+void SmartDisplay::printAddNewTeaConfigScreen(TeaData teaData)
+{
+    resetDisplay();
+
+    m_display->println("Add initial config for new tea");
+    m_display->println();
+    m_display->print("Steeping time:");
+    m_display->print(teaData.m_steepingSeconds);
+    m_display->println("s");
+
+    m_display->display();
+}
+
+void SmartDisplay::printMsg(const String &s)
+{
+    resetDisplay();
+    m_display->setCursor(0, 10);
+    m_display->println(s);
+    m_display->display();
+}
+void SmartDisplay::printMsg(unsigned long l)
+{
+    resetDisplay();
+    m_display->setCursor(0, 10);
+    m_display->println(l);
+    m_display->display();
+}
+
+void SmartDisplay::resetDisplay()
 {
     m_display->clearDisplay();
     m_display->setTextColor(WHITE);
     m_display->setTextSize(1);
     m_display->setCursor(0, 0);
-
-    m_display->println("Waiting for RFID scan...");
-
-    m_display->display();
 }

src/SmartDisplay.hpp

@@ -1,14 +1,30 @@
 #pragma once
 #include <Adafruit_GFX.h>
 #include <Adafruit_SSD1306.h>
+#include "TeaData.hpp"
 
-class SmartDisplay {
-    public:
-        SmartDisplay(Adafruit_SSD1306 *display);
-        void printTeaConfigScreen(String teaName, int steepingSeconds, int editDir);
-        void printAddNewTeaScreen();
-        void printTeaSteepingProgressScreen(String teaName, int steepingSeconds);
-        void printWaitForRFIDScreen();
-    private:
-        Adafruit_SSD1306 *m_display;
+class SmartDisplay
+{
+public:
+    SmartDisplay(Adafruit_SSD1306 *display);
+
+public:
+    // lifecycle screens
+    void printWaitForRFIDScreen();
+    void printTeaConfigScreen(TeaData teaData);
+    void printTeaSteepingProgressScreen(TeaData teaData, int remainingSeconds);
+    void printRequestFeedbackScreen(TeaData teaData);
+
+public:
+    // special screens
+    void printAddNewTeaConfigScreen(TeaData teaData);
+
+public:
+    // helper methods
+    void printMsg(const String &s);
+    void printMsg(unsigned long l);
+    void resetDisplay();
+
+private:
+    Adafruit_SSD1306 *m_display;
 };

src/SmartRFID.cpp

@@ -18,15 +18,14 @@ void SmartRFID::init()
     Serial.println("PN5 chip found!");
 }
 
-String SmartRFID::readTag()
+String SmartRFID::readTag(uint16_t timeoutMillis)
 {
     m_nfc->SAMConfig();
-    Serial.println("Waiting for ISO14443A chip...");
 
     uint8_t success;
     uint8_t uid[] = {0, 0, 0, 0, 0, 0, 0}; // buffer for UID
     uint8_t uidLength;                     // UID length (4 or 7 bytes depending on ISO14443A Card/Chip type)
-    success = m_nfc->readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength);
+    success = m_nfc->readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength, timeoutMillis);
     if (success)
     {
         Serial.println("Found an ISO14443A card");

src/SmartRFID.hpp

@@ -8,7 +8,7 @@ class SmartRFID
 public:
     SmartRFID(Adafruit_PN532 *nfc);
     void init();
-    String readTag();
+    String readTag(uint16_t timeoutMillis);
 
 private:
     String string_dump_byte_array(byte *buffer, byte bufferSize);

src/main.cpp

@@ -43,14 +43,22 @@ SmartButton buttonRight(TACTILE_BTN_RIGHT);
 // networking
 String shuttleServer = "https://ias-tea-axum.shuttleapp.rs";
 
-TeaData currentTea("Teafault", "c0derfid", 100, 30);
+TeaData currentTea("Teafault", "c0derfid", -1, 30);
+String currentUid;
 
 enum State
 {
+  // lifecycle states
   WAIT_FOR_RFID_SCAN,
+  PROCESS_RFID_SCAN,
   DISPLAY_SCANNED_TEA_CONFIG,
-  ADD_NEW_TEA_CONFIG,
   STEEPING_IN_PROGRESS,
+  REQUEST_FEEDBACK,
+
+  // special states
+  DISPLAY_ADD_NEW_TEA_CONFIG,
+
+  // debugging states
   NETWORKING_DEBUG,
 };
 State state = State::WAIT_FOR_RFID_SCAN;
@@ -63,19 +71,19 @@ void setup()
   FastLED.addLeds<WS2812B, LEDSTRIPE_PIN, RGB>(leds, PIXELCOUNT);
   FastLED.clear(true);
   FastLED.show();
-  delay(2000);
+  delay(500);
 
   leds[0].setRGB(2, 0, 0);
   FastLED.show();
-  delay(1000);
+  delay(500);
 
   leds[10].setRGB(0, 2, 0);
   FastLED.show();
-  delay(1000);
+  delay(500);
 
   leds[19].setRGB(0, 0, 2);
   FastLED.show();
-  delay(1000);
+  delay(500);
 
   teaNet.init(ssid, password);
 
@@ -83,9 +91,9 @@ void setup()
 
   Serial.println("Initializing OLED...");
   display.begin(SSD1306_SWITCHCAPVCC, 0x3C, false); // Address 0x3C for 128x32
-  printMsg("Tea is Great!");
+  smartDisplay.printMsg("Tea is Great!");
 
-  delay(1000);
+  delay(500);
 
   pinMode(LED_BUILTIN, OUTPUT);
   pinMode(TOUCH_BTN_PIN, INPUT);
@@ -96,7 +104,6 @@ void setup()
 
 void loop()
 {
-
   contServo.tick();
 
   switch (state)
@@ -123,38 +130,57 @@ void loop()
   {
     smartDisplay.printWaitForRFIDScreen();
 
-    // this blocks execution until a tag has been detected
-    String uid = smartRFID.readTag();
+    // this blocks execution until a tag has been detected (5s timeout)
+    String uid = smartRFID.readTag(5000);
+    if (uid != "no_tag_detected")
+    {
+      currentUid = uid;
+      state = PROCESS_RFID_SCAN;
+    }
+    break;
+  }
+  case PROCESS_RFID_SCAN:
+  {
 
-    display.println(uid);
-    display.display();
-    delay(1000);
-
-    display.println("Success!");
+    display.println(currentUid);
     display.display();
     delay(500);
 
-    JSONVar result = teaNet.httpsGETRequest(shuttleServer + "/teabyrfid/" + uid);
+    display.println("Success!");
+    display.display();
+    delay(250);
+
+    JSONVar result = teaNet.httpsGETRequest(shuttleServer + "/teabyrfid/" + currentUid);
     Serial.print("Result:");
     Serial.println(result);
 
     if (JSONVar::stringify(result) == "null")
     {
       Serial.print("TEA DOES NOT EXIST YET!");
-      String payload = teaNet.createTeaData("Unnamed Tea", uid, 90, 180);
-      teaNet.httpsPOSTRequest("https://ias-tea-axum.shuttleapp.rs/addtea", payload);
-      result = teaNet.httpsGETRequest(shuttleServer + "/teabyrfid/" + uid);
+      String payload = teaNet.createTeaData("Unnamed Tea", currentUid, 90, 180);
+      teaNet.httpsPOSTRequest(shuttleServer + "/addtea", payload);
+      result = teaNet.httpsGETRequest(shuttleServer + "/teabyrfid/" + currentUid);
+      state = State::DISPLAY_ADD_NEW_TEA_CONFIG;
+    }
+    else
+    {
+      state = State::DISPLAY_SCANNED_TEA_CONFIG;
     }
 
     currentTea = TeaData(result["teaname"], result["rfidcode"], result["watertemp"], result["steepingseconds"]);
-
-    state = State::DISPLAY_SCANNED_TEA_CONFIG;
-
     break;
   }
   case DISPLAY_SCANNED_TEA_CONFIG:
   {
-    // int dir = smartDial.smoothEdit(&currentTea.m_steepingSeconds, 0, 6000);
+
+    String uid = smartRFID.readTag(50); // just enough time to detect tag
+    if (uid != "no_tag_detected")
+    {
+      currentUid = uid;
+      smartDisplay.resetDisplay();
+      state = PROCESS_RFID_SCAN;
+      break;
+    }
 
     if (buttonLeft.isJustPressed())
     {
@@ -164,7 +190,7 @@ void loop()
     {
       currentTea.m_steepingSeconds += 10;
     }
-    smartDisplay.printTeaConfigScreen(currentTea.m_teaName, currentTea.m_steepingSeconds, 0);
+    smartDisplay.printTeaConfigScreen(currentTea);
 
     if (isBtnPressed() && currentTea.m_steepingSeconds <= 0)
     {
@@ -177,62 +203,94 @@ void loop()
     // change state if start pressed
     if (isBtnPressed())
     {
-      teaTimer.beginSteeping(10000);
+      teaTimer.beginSteeping(5000);
       state = State::STEEPING_IN_PROGRESS;
     }
     break;
   }
-  case ADD_NEW_TEA_CONFIG:
-  {
-    break;
-  }
   case STEEPING_IN_PROGRESS:
   {
     teaTimer.tick();
     if (teaTimer.isSteeping())
     {
       auto r = teaTimer.remainingSteepTimeSeconds();
-      smartDisplay.printTeaSteepingProgressScreen(currentTea.m_teaName, r);
+      smartDisplay.printTeaSteepingProgressScreen(currentTea, r);
     }
     else
     {
-      printMsg("DONE");
+      smartDisplay.printMsg("DONE");
       if (!contServo.isTurning())
       {
-        delay(2000);
-        state = State::WAIT_FOR_RFID_SCAN;
+        delay(1000);
+        state = State::REQUEST_FEEDBACK;
       }
     }
     break;
   }
+  case REQUEST_FEEDBACK:
+  {
+    smartDisplay.printRequestFeedbackScreen(currentTea);
+
+    String uid = smartRFID.readTag(50); // just enough time to detect tag
+    if (uid != "no_tag_detected")
+    {
+      currentUid = uid;
+      smartDisplay.resetDisplay();
+      state = PROCESS_RFID_SCAN;
+      break;
+    }
+
+    if (buttonLeft.isJustPressed())
+    {
+      // decrease steeping time for next brew
+      smartDisplay.printMsg("Feedback accepted (-)");
+      delay(3000);
+      state = State::WAIT_FOR_RFID_SCAN;
+    }
+    if (buttonRight.isJustPressed())
+    {
+      // increase steeping time for next brew
+      smartDisplay.printMsg("Feedback accepted (+)");
+      delay(3000);
+      state = State::WAIT_FOR_RFID_SCAN;
+    }
+    break;
+  }
+  case DISPLAY_ADD_NEW_TEA_CONFIG:
+  {
+    smartDisplay.printAddNewTeaConfigScreen(currentTea);
+
+    String uid = smartRFID.readTag(50); // just enough time to detect tag
+    if (uid != "no_tag_detected")
+    {
+      currentUid = uid;
+      smartDisplay.resetDisplay();
+      state = PROCESS_RFID_SCAN;
+      break;
+    }
+
+    if (buttonLeft.isJustPressed())
+    {
+      currentTea.m_steepingSeconds -= 10;
+    }
+    if (buttonRight.isJustPressed())
+    {
+      currentTea.m_steepingSeconds += 10;
+    }
+
+    if (isBtnPressed())
+    {
+      smartDisplay.printMsg("Accepted");
+      delay(1000);
+      state = State::DISPLAY_SCANNED_TEA_CONFIG;
+    }
+
+    break;
+  }
   };
 }
 
-void toggle_led()
-{
-  digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
-}
-
 bool isBtnPressed()
 {
   return digitalRead(TOUCH_BTN_PIN) == HIGH;
-}
-
-void printMsg(const String &s)
-{
-  display.clearDisplay();
-  display.setTextColor(WHITE);
-  display.setTextSize(1);
-  display.setCursor(0, 10);
-  display.println(s);
-  display.display();
-}
-void printMsg(unsigned long l)
-{
-  display.clearDisplay();
-  display.setTextColor(WHITE);
-  display.setTextSize(1);
-  display.setCursor(0, 10);
-  display.println(l);
-  display.display();
 }

src/main.hpp

@@ -19,8 +19,4 @@
 #include "SmartButton.hpp"
 #include "SmartSound.hpp"
 
-void playSong();
-bool toggle_led(void *);
-void printMsg(const String &s);
-void printMsg(unsigned long l);
 bool isBtnPressed();