From 0d8ab3ea6e0bce6ef0a613e822bc5fb0e6868dae Mon Sep 17 00:00:00 2001
From: a2nr <anggoro.dwi.nr@gmail.com>
Date: Wed, 11 Jun 2025 11:27:49 +0700
Subject: [PATCH] update dengan fitur NTP

---
 platformio.ini |   1 +
 src/main.cpp   | 117 ++++++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 113 insertions(+), 5 deletions(-)

diff --git a/platformio.ini b/platformio.ini
index 0043be4..9d9b690 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -18,6 +18,7 @@ lib_deps =
     adafruit/Adafruit BusIO
     adafruit/Adafruit GFX Library
     https://github.com/mrfaptastic/ESP32-HUB75-MatrixPanel-I2S-DMA.git
+    arduino-libraries/NTPClient @ ^3.2.1
 upload_speed = 460800
 monitor_speed = 115200
 monitor_filters = esp32_exception_decoder
diff --git a/src/main.cpp b/src/main.cpp
index 9daa1b4..7611699 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,20 +1,127 @@
 #include <led-matrix-32-16.hpp>
 #include <Arduino.h>
+#include <WiFi.h>
+#include <NTPClient.h>
+#include <WiFiUdp.h>
 
 LedMetrix32x16 ledMatrix; // Create an instance of the LedMetrix32x16 class
 
+#define YOUR_WIFI_SSID "WiFi - Mekatronika"
+#define YOUR_WIFI_PASSWD "tanyapakimron"
+#define SHOW_TIME_PERIOD 1000
+
+// Reduce memory usage by using static allocation
+static MatrixPanel_I2S_DMA *display = nullptr;
+static CustomPxBasePanel *virtualDisplay = nullptr;
+
+// NTP Client setup
+WiFiUDP ntpUDP;
+NTPClient timeClient(ntpUDP, "pool.ntp.org", 25200); // UTC+7 for Jakarta
 
 void setup() {
   Serial.begin(115200); // Initialize serial communication for debugging
-  ledMatrix.begin(1, 3); // Initialize the LED matrix with 1 rows and 3 column of panels
-  MatrixPanel_I2S_DMA *display = ledMatrix.getDisplay(); // Get the DMA display object
-  display->setBrightness(50); // Set the brightness of the display to 50%
+  delay(1000); // Give time for system to stabilize
+  
+  // Initialize WiFi with optimized settings
+  WiFi.mode(WIFI_STA);
+  WiFi.disconnect();
+  delay(1000);
+  
+  // Optimize WiFi power and performance
+  WiFi.setTxPower(WIFI_POWER_19_5dBm);
+  WiFi.setSleep(false); // Disable WiFi sleep mode
+  
+  // Connect to WiFi
+  Serial.println("Connecting to WiFi...");
+  Serial.print("SSID: ");
+  Serial.println(YOUR_WIFI_SSID);
+  
+  WiFi.begin(YOUR_WIFI_SSID, YOUR_WIFI_PASSWD);
+  
+  // Wait for connection with timeout
+  int timeout = 0;
+  while (WiFi.status() != WL_CONNECTED && timeout < 20) {
+    delay(500);
+    Serial.print(".");
+    Serial.print("Status: ");
+    switch(WiFi.status()) {
+      case WL_IDLE_STATUS:
+        Serial.println("WL_IDLE_STATUS");
+        break;
+      case WL_NO_SSID_AVAIL:
+        Serial.println("WL_NO_SSID_AVAIL");
+        break;
+      case WL_CONNECT_FAILED:
+        Serial.println("WL_CONNECT_FAILED");
+        break;
+      case WL_CONNECTION_LOST:
+        Serial.println("WL_CONNECTION_LOST");
+        break;
+      case WL_DISCONNECTED:
+        Serial.println("WL_DISCONNECTED");
+        break;
+      default:
+        Serial.println("Unknown status");
+    }
+    timeout++;
+  }
+  
+  if (WiFi.status() != WL_CONNECTED) {
+    Serial.println("");
+    Serial.println("WiFi connection failed!");
+    Serial.println("Please check:");
+    Serial.println("1. WiFi SSID and password are correct");
+    Serial.println("2. WiFi router is in range");
+    Serial.println("3. WiFi router is working properly");
+    while (true) {
+      delay(1000);
+      Serial.print("Retrying connection... Status: ");
+      Serial.println(WiFi.status());
+      WiFi.begin(YOUR_WIFI_SSID, YOUR_WIFI_PASSWD);
+    }
+  }
+
+  Serial.println("");
+  Serial.println("WiFi connected!");
+  Serial.print("IP address: ");
+  Serial.println(WiFi.localIP());
+  Serial.print("Signal strength (RSSI): ");
+  Serial.println(WiFi.RSSI());
+  
+  // Initialize LED matrix after WiFi is connected
+  ledMatrix.begin(1, 3);
+  display = ledMatrix.getDisplay();
+  virtualDisplay = ledMatrix.getVirtualDisplay();
+  display->setBrightness(50);
+
+  // Initialize NTP
+  timeClient.begin();
+  timeClient.update();
 }
 
+int last = 0;
 void loop() {
-  MatrixPanel_I2S_DMA *display = ledMatrix.getDisplay(); // Get the DMA display object
-  CustomPxBasePanel *virtualDisplay = ledMatrix.getVirtualDisplay(); // Get the virtual display object
+  // Use static display pointers to reduce memory allocation
+  if (!display || !virtualDisplay) 
+    while(1);
   
+  // Update time every minute
+  if (millis() - last >= 60000) {
+    timeClient.update();
+    last = millis();
+  }
+
+  // Get current time
+  String timeString = timeClient.getFormattedTime();
+  
+  // Display time
+  virtualDisplay->clearScreen();
+  virtualDisplay->setTextSize(2);
+  virtualDisplay->setTextColor(virtualDisplay->color565(255, 255, 255));
+  virtualDisplay->setCursor(0, 0);
+  virtualDisplay->println(timeString);
+  delay(3000);
+
   // draw a red pixel at each position on the display
   for (int i = 0; i < virtualDisplay->height(); i++)
   {