#include #include #include #include #include #include #include // ========== BOOT BITMAP (separate file) ========== #include "boot_img.h" // ========== WiFi ========== const char* ssid = ""; const char* password = ""; // ========== Display & Touch ========== #define SCREEN_WIDTH 240 #define SCREEN_HEIGHT 240 #define CHSC6X_I2C_ID 0x2e #define CHSC6X_READ_POINT_LEN 5 #define TOUCH_INT D7 TFT_eSPI tft = TFT_eSPI(); // ========== NTP & Timezone (IST = UTC+5:30) ========== const char* ntpServer1 = "pool.ntp.org"; const char* ntpServer2 = "time.nist.gov"; int timezoneMinutes = 330; // UTC+5:30 // ========== EEPROM ========== #define EEPROM_SIZE 512 #define EEPROM_PILL_COUNT_ADDR 0 #define EEPROM_PILL_DATA_ADDR 4 #define EEPROM_TZ_ADDR 200 #define MAX_PILLS 20 struct Pill { char name[24]; int hour; int minute; bool active; bool takenToday; }; Pill pills[MAX_PILLS]; int pillCount = 0; // ========== Global State ========== WebServer server(80); String localIP = ""; bool showingIP = true; unsigned long ipShowStart = 0; bool reminderActive = false; int reminderIndex = -1; // Clock update – no flicker String lastTimeStr = ""; int lastTimeX = 0, lastTimeY = 95; bool clockInitialised = false; // ========== Touch Functions ========== void round_display_touch_init(void) { pinMode(TOUCH_INT, INPUT_PULLUP); Wire.begin(); } bool chsc6x_is_pressed(void) { if(digitalRead(TOUCH_INT) != LOW) { delay(1); if(digitalRead(TOUCH_INT) != LOW) return false; } return true; } bool chsc6x_get_xy(int32_t &x, int32_t &y) { uint8_t temp[CHSC6X_READ_POINT_LEN] = {0}; Wire.requestFrom(CHSC6X_I2C_ID, CHSC6X_READ_POINT_LEN); if (Wire.available() == CHSC6X_READ_POINT_LEN) { for(int i=0; i MAX_PILLS) pillCount = 0; for (int i = 0; i < pillCount; i++) { int addr = EEPROM_PILL_DATA_ADDR + i * sizeof(Pill); EEPROM.get(addr, pills[i]); } } void saveTimezone() { EEPROM.writeInt(EEPROM_TZ_ADDR, timezoneMinutes); EEPROM.commit(); } void loadTimezone() { timezoneMinutes = EEPROM.readInt(EEPROM_TZ_ADDR); if (timezoneMinutes < -720 || timezoneMinutes > 840) timezoneMinutes = 330; } // ========== Time Formatting ========== String get12HourTimeNoAmPm() { struct tm timeinfo; if (!getLocalTime(&timeinfo)) return "--:--"; char buffer[6]; int hour = timeinfo.tm_hour % 12; if (hour == 0) hour = 12; sprintf(buffer, "%d:%02d", hour, timeinfo.tm_min); return String(buffer); } String format12HourAmPm(int hour, int minute) { int dispHour = hour % 12; if (dispHour == 0) dispHour = 12; char buffer[10]; const char* ampm = hour >= 12 ? "pm" : "am"; sprintf(buffer, "%d:%02d%s", dispHour, minute, ampm); return String(buffer); } void syncTime() { configTime(timezoneMinutes * 60, 0, ntpServer1, ntpServer2); struct tm timeinfo; int retry = 0; while (!getLocalTime(&timeinfo) && retry < 20) { delay(500); retry++; } } // ========== Pill Management ========== int findNextReminderIndex() { struct tm timeinfo; if (!getLocalTime(&timeinfo)) return -1; int nowMinutes = timeinfo.tm_hour * 60 + timeinfo.tm_min; int bestIdx = -1; int bestTime = 24*60; for (int i = 0; i < pillCount; i++) { if (!pills[i].active || pills[i].takenToday) continue; int pillMinutes = pills[i].hour * 60 + pills[i].minute; if (pillMinutes >= nowMinutes && pillMinutes < bestTime) { bestTime = pillMinutes; bestIdx = i; } } if (bestIdx == -1) { for (int i = 0; i < pillCount; i++) { if (pills[i].active && !pills[i].takenToday) { bestIdx = i; break; } } } return bestIdx; } void checkReminders() { if (reminderActive) return; struct tm timeinfo; if (!getLocalTime(&timeinfo)) return; int nowMinutes = timeinfo.tm_hour * 60 + timeinfo.tm_min; for (int i = 0; i < pillCount; i++) { if (!pills[i].active || pills[i].takenToday) continue; int pillMinutes = pills[i].hour * 60 + pills[i].minute; if (pillMinutes == nowMinutes) { reminderActive = true; reminderIndex = i; drawReminderScreen(i); break; } } } // ========== CLOCK SCREEN ========== void drawClockScreen() { tft.fillScreen(TFT_BLACK); tft.setFreeFont(&FreeSansBold24pt7b); tft.setTextColor(TFT_WHITE, TFT_BLACK); String timeStr = get12HourTimeNoAmPm(); int timeWidth = tft.textWidth(timeStr); lastTimeX = (SCREEN_WIDTH - timeWidth) / 2; lastTimeY = 95; tft.drawString(timeStr, lastTimeX, lastTimeY); lastTimeStr = timeStr; tft.setFreeFont(&FreeSans9pt7b); tft.setTextColor(TFT_WHITE, TFT_BLACK); int nextIdx = findNextReminderIndex(); if (nextIdx >= 0) { String line1 = "Next : " + String(pills[nextIdx].name); int w1 = tft.textWidth(line1); tft.drawString(line1, (SCREEN_WIDTH - w1) / 2, 160); String timeAmPm = format12HourAmPm(pills[nextIdx].hour, pills[nextIdx].minute); int w2 = tft.textWidth(timeAmPm); tft.drawString(timeAmPm, (SCREEN_WIDTH - w2) / 2, 190); } else { String noRem = "No reminders"; int w = tft.textWidth(noRem); tft.drawString(noRem, (SCREEN_WIDTH - w) / 2, 175); } clockInitialised = true; } void updateClockTime() { if (!clockInitialised) return; String newTime = get12HourTimeNoAmPm(); if (newTime == lastTimeStr) return; tft.setFreeFont(&FreeSansBold24pt7b); int w = tft.textWidth(lastTimeStr); int h = tft.fontHeight(); tft.fillRect(lastTimeX, lastTimeY - 5, w, h + 5, TFT_BLACK); tft.setTextColor(TFT_WHITE, TFT_BLACK); tft.drawString(newTime, lastTimeX, lastTimeY); lastTimeStr = newTime; } // ========== REMINDER SCREEN ========== void drawReminderScreen(int idx) { tft.fillScreen(TFT_RED); tft.setTextColor(TFT_WHITE, TFT_RED); tft.setFreeFont(&FreeSansBold24pt7b); tft.drawString("Pill Time", 22, 88); tft.setFreeFont(&FreeSans12pt7b); String pillName = String(pills[idx].name); int nameWidth = tft.textWidth(pillName); int nameX = (SCREEN_WIDTH - nameWidth) / 2; tft.drawString(pillName, nameX, 136); tft.setFreeFont(&FreeSans9pt7b); tft.drawString("Tap to take", 75, 204); } void drawPillTakenScreen() { tft.fillScreen(TFT_DARKGREEN); tft.setTextColor(TFT_WHITE, TFT_DARKGREEN); tft.setFreeFont(&FreeSans18pt7b); tft.drawString("Pill taken!", 30, 100); delay(1500); } // ========== BOOT BITMAP – YOUR FULL-SCREEN LOGO ========== void drawBootBitmap() { tft.pushImage(0, 0, 240, 240, (uint16_t*)image_bitmap_pixels); delay(1500); } // ========== WEB UI ========== void handleRoot() { String html = R"rawliteral( Pill Reminder

💊 Pill Reminder

Connected to )rawliteral" + localIP + R"rawliteral(

New Pill

⚙️ Timezone
)rawliteral"; server.send(200, "text/html", html); } void handleGetPills() { String json = "["; for (int i = 0; i < pillCount; i++) { if (i > 0) json += ","; json += "{\"name\":\"" + String(pills[i].name) + "\","; json += "\"hour\":" + String(pills[i].hour) + ","; json += "\"minute\":" + String(pills[i].minute) + "}"; } json += "]"; server.send(200, "application/json", json); } void handleAddPill() { if (server.hasArg("name") && server.hasArg("hour") && server.hasArg("minute") && pillCount < MAX_PILLS) { String name = server.arg("name"); int hour = server.arg("hour").toInt(); int minute = server.arg("minute").toInt(); name.toCharArray(pills[pillCount].name, 24); pills[pillCount].hour = hour; pills[pillCount].minute = minute; pills[pillCount].active = true; pills[pillCount].takenToday = false; pillCount++; savePills(); server.send(200, "text/plain", "OK"); } else { server.send(400, "text/plain", "Bad Request"); } } void handleDeletePill() { if (server.hasArg("index")) { int idx = server.arg("index").toInt(); if (idx >= 0 && idx < pillCount) { for (int i = idx; i < pillCount - 1; i++) pills[i] = pills[i + 1]; pillCount--; savePills(); server.send(200, "text/plain", "OK"); } else server.send(400, "text/plain", "Bad Request"); } else server.send(400, "text/plain", "Bad Request"); } void handleGetConfig() { String json = "{\"tz\":" + String(timezoneMinutes) + "}"; server.send(200, "application/json", json); } void handleSetConfig() { if (server.hasArg("tz")) { timezoneMinutes = server.arg("tz").toInt(); if (timezoneMinutes < -720) timezoneMinutes = 0; if (timezoneMinutes > 840) timezoneMinutes = 330; saveTimezone(); syncTime(); } server.send(200, "text/plain", "OK"); } // ========== SETUP ========== void setup() { Serial.begin(115200); // while (!Serial) delay(10); // <-- REMOVED – device starts without waiting for Serial Monitor Serial.println("\n=== Pill Reminder ==="); tft.init(); tft.setRotation(3); tft.fillScreen(TFT_BLACK); tft.setTextColor(TFT_WHITE, TFT_BLACK); // Show boot bitmap drawBootBitmap(); round_display_touch_init(); EEPROM.begin(EEPROM_SIZE); loadTimezone(); loadPills(); WiFi.begin(ssid, password); int attempts = 0; while (WiFi.status() != WL_CONNECTED && attempts < 30) { delay(500); Serial.print("."); attempts++; } if (WiFi.status() == WL_CONNECTED) { localIP = WiFi.localIP().toString(); Serial.println("\nIP: " + localIP); tft.fillScreen(TFT_BLACK); tft.setFreeFont(&FreeSans9pt7b); tft.drawString("IP Address:", 30, 80); tft.setFreeFont(&FreeSans12pt7b); tft.drawString(localIP, 30, 120); ipShowStart = millis(); showingIP = true; syncTime(); } else { Serial.println("WiFi failed"); tft.fillScreen(TFT_RED); tft.drawString("WiFi Failed", 30, 100); delay(2000); } server.on("/", handleRoot); server.on("/pills", handleGetPills); server.on("/add", handleAddPill); server.on("/delete", handleDeletePill); server.on("/getconfig", handleGetConfig); server.on("/config", handleSetConfig); server.begin(); Serial.println("Web server ready"); } // ========== LOOP ========== void loop() { server.handleClient(); if (showingIP && millis() - ipShowStart > 5000) { showingIP = false; drawClockScreen(); } static unsigned long lastTimeUpdate = 0; if (!showingIP && !reminderActive && millis() - lastTimeUpdate > 1000) { updateClockTime(); lastTimeUpdate = millis(); } if (!showingIP && !reminderActive) { checkReminders(); } if (chsc6x_is_pressed()) { int32_t x, y; if (chsc6x_get_xy(x, y)) { if (reminderActive) { if (reminderIndex >= 0) { pills[reminderIndex].takenToday = true; pills[reminderIndex].active = false; savePills(); } drawPillTakenScreen(); reminderActive = false; reminderIndex = -1; drawClockScreen(); } delay(200); } } static int lastDay = -1; struct tm timeinfo; if (getLocalTime(&timeinfo)) { if (timeinfo.tm_yday != lastDay) { lastDay = timeinfo.tm_yday; for (int i = 0; i < pillCount; i++) { pills[i].takenToday = false; pills[i].active = true; } savePills(); Serial.println("Daily reset"); } } delay(50); }