first refactor in to multiple files

analog_system_monitor_arduino/Config.h

@@ -0,0 +1,94 @@
+#pragma once
+#include <Arduino.h>
+
+// -------------------------------
+// Firmware version
+// -------------------------------
+static const char* FIRMWARE_VERSION = "V2.4_UDP_LEDC_WM_SLEW";
+
+// -------------------------------
+// UDP
+// -------------------------------
+static const int listenPort = 12345;          // default / legacy constant
+static const unsigned long watchdogTimeout = 5000;  // 5 seconds
+
+// -------------------------------
+// PWM setup (LEDC, ESP32 Core 3.x)
+// -------------------------------
+static const uint8_t NUM_CHANNELS = 8;
+
+static const uint8_t pwmPins[NUM_CHANNELS] = {
+    26, // D0
+    22, // D1
+    21, // D2
+    17, // D3
+    16, // D4
+    5,  // D5
+    18, // D6
+    19  // D7
+    // 23 (D8) remains as a spare
+};
+
+static const uint32_t pwmFrequency = 25000; // 25 kHz
+static const uint8_t pwmResolution = 10;    // 10-bit resolution (0–1023)
+
+// -------------------------------
+// Channel labels for debugging
+// -------------------------------
+static const char* const channelLabels[NUM_CHANNELS] = {
+  "CPU Load",
+  "CPU Temp",
+  "RAM Usage",
+  "GPU Load",
+  "GPU Temp",
+  "VRAM Usage",
+  "Reserved 6",
+  "Reserved 7"
+};
+
+static const char* const channelUnits[NUM_CHANNELS] = {
+  "%",     // CPU Load
+  "°C",    // CPU Temp
+  "%",     // RAM Usage
+  "%",     // GPU Load
+  "°C",    // GPU Temp
+  "%",     // VRAM Usage
+  "",      // Reserved
+  ""       // Reserved
+};
+
+// -------------------------------
+// Channel labels ESPUI
+// -------------------------------
+static const char* const channelDropdownLabels[NUM_CHANNELS] = {
+    "CH0 (CPU Load)",
+    "CH1 (CPU Temp)",
+    "CH2 (RAM Usage)",
+    "CH3 (GPU Load)",
+    "CH4 (GPU Temp)",
+    "CH5 (VRAM Usage)",
+    "CH6 (Reserved 6)",
+    "CH7 (Reserved 7)"
+};
+
+// -------------------------------
+// Calibration logical points
+// -------------------------------
+static const unsigned long slewDuration = 1000; // 1 second smooth transition
+
+// -------------------------------
+// Animation tuning
+// -------------------------------
+static const float FADE_IN_FACTOR  = 0.999f;   // boot-up 0 → 100%
+static const float FADE_OUT_FACTOR = 0.999f;   // watchdog 100% → 0
+static const unsigned long FADE_INTERVAL = 1;  // ms between fade steps
+
+// -------------------------------
+// Connection state machine
+// -------------------------------
+enum ConnectionState {
+    STATE_DISCONNECTED,          // fade to zero
+    STATE_CONNECTING,            // fade in 0 → 100%
+    STATE_WAIT_FOR_FIRST_PACKET, // hold at 100%, wait for first UDP
+    STATE_CONNECTED              // normal UDP-driven slew
+};