diff --git a/include/config.sample.h b/include/config.sample.h
index 2e096da..1faa716 100644
--- a/include/config.sample.h
+++ b/include/config.sample.h
@@ -3,6 +3,7 @@
 #include <Arduino.h>
 #define FASTLED_INTERNAL
 #include <FastLED.h>
+#include "prototypes.h"
 
 //#define DEBUG // Uncomment this to enable Debug messages via Serial and, if enabled, MQTT.
 //#define CONFIG_USABLE // Uncomment this by removing the // at the beginning!
@@ -49,39 +50,35 @@
 #define MONITOR_LOOP_TIME_THRESHOLD 500
 #define MONITOR_LOOP_TIME_COUNT_MAX 10
 
-#define EFFECT_CYCLE_TIME 300 // Time in seconds between cycling effects.
-#define EFFECT_CYCLE_RANDOM true
+// settings.effects.cycle.time = 300; // Time in seconds between cycling effects.
+// settings.effects.cycle.random = true;
 
-#define EFFECT_MATRIX_LENGTH_MIN 4
-#define EFFECT_MATRIX_LENGTH_MAX 20
-#define EFFECT_MATRIX_SPEED_MIN 50
-#define EFFECT_MATRIX_SPEED_MAX 135
+// settings.effects.matrix.length_min = 4;
+// settings.effects.matrix.length_max = 20;
+// settings.effects.matrix.speed_min = 1;
+// settings.effects.matrix.speed_max = 10;
 
-#define EFFECT_SINGLE_DYNAMIC_LOOP_TIME 40
-#define EFFECT_MULTI_DYNAMIC_LOOP_TIME 1400
-#define EFFECT_BIG_DYNAMIC_LOOP_TIME 50
-#define EFFECT_BIG_DYNAMIC_SIZE 3
+// .dynamic.single_loop_time = 40;
+// .dynamic.multi_loop_time = 1400;
+// .dynamic.big_loop_time = 50;
+// .dynamic.big_size = 3;
 
-#define EFFECT_CONFETTI_PIXELS_PER_LOOP 2
+// .fire.cooldown = 192;
+// .fire.spark_chance = 5;
 
-#define EFFECT_SNAKE_DIRECTION_CHANGE 10
-#define EFFECT_SNAKE_SLOWDOWN 2
+// .firework.drag = 255;
+// .firework.bounce = 200;
+// .firework.gravity = 10;
+// .firework.sparks = 12;
 
-#define EFFECT_FIRE_COOLDOWN 192
-#define EFFECT_FIRE_SPARK_CHANCE 5
+// .gol.start_percentage = 90;
+// .gol.blend_speed = 10;
+// .gol.restart_after_steps = 100;
 
-#define EFFECT_FIREWORK_SHOT_CHANCE 200
-#define EFFECT_FIREWORK_BLUR 200
-#define EFFECT_FIREWORK_FADEOUT_SPEED 5
+// .sines.count = 5;
 
-#define EFFECT_GOL_START_PERCENTAGE 90
-#define EFFECT_GOL_BLEND_SPEED 10
-#define EFFECT_GOL_RESTART_AFTER_STEPS 100
-
-#define EFFECT_DVD_WIDTH 3
-#define EFFECT_DVD_HEIGHT 2
-
-#define EFFECT_SINES_COUNT 5
+// .snake.direction_change = 5;
+// .snake.slowdown = 2;
 
 // Stop editing here
 
diff --git a/include/effect_firework.h b/include/effect_firework.h
index b7ee0a5..4f1b53d 100644
--- a/include/effect_firework.h
+++ b/include/effect_firework.h
@@ -6,11 +6,6 @@
 
 enum FireworkDotType { FIREWORK_DOT_NONE, FIREWORK_DOT_SHELL, FIREWORK_DOT_SPARK };
 
-#define EFFECT_FIREWORK_DRAG 255
-#define EFFECT_FIREWORK_BOUNCE 200
-#define EFFECT_FIREWORK_GRAVITY 10
-#define EFFECT_FIREWORK_SPARKS 12
-
 class FireworkEffect;
 
 class FireworkEffectDot {
@@ -49,7 +44,7 @@ private:
 	CRGB _burst_color;
 	
 	FireworkEffectDot* _dot;
-	FireworkEffectDot* _sparks[EFFECT_FIREWORK_SPARKS];
+	FireworkEffectDot** _sparks;
 public:
 	FireworkEffect();
 	~FireworkEffect();
diff --git a/include/effect_sines.h b/include/effect_sines.h
index b6407c9..d1684d0 100644
--- a/include/effect_sines.h
+++ b/include/effect_sines.h
@@ -20,7 +20,7 @@ public:
 
 class SinesEffect : public Effect {
 private:
-	SinesEffectSinus* _sinus[EFFECT_SINES_COUNT];
+	SinesEffectSinus** _sinus;
 	uint8_t _step = 0;
 public:
 	SinesEffect();
diff --git a/include/prototypes.h b/include/prototypes.h
index 6318c5d..4ee26c4 100644
--- a/include/prototypes.h
+++ b/include/prototypes.h
@@ -2,6 +2,9 @@
 
 #include <Arduino.h>
 
+extern uint8_t baseHue;
+extern char hostname[30];
+
 typedef struct {
 	uint8_t width;
 	uint8_t height;
@@ -27,5 +30,78 @@ typedef struct {
     uint16_t y;
 } Coords;
 
-extern uint8_t baseHue;
-extern char hostname[30];
+enum SettingType {
+	TYPE_UINT8,
+	TYPE_UINT16,
+	TYPE_BOOL
+};
+
+typedef struct {
+	const char* name;
+	uint16_t* value;
+	SettingType type;
+} Setting;
+
+struct /* settings */{
+	uint16_t fps = 50;
+
+	struct /* effects */ {
+		struct /* cycle */ {
+			uint16_t time = 300;
+			uint16_t random = 1;
+		} cycle ;
+		
+		struct /* matrix */ {
+			uint16_t length_min = 4;
+			uint16_t length_max = 20;
+			uint16_t speed_min = 1;
+			uint16_t speed_max = 10;
+		} matrix;
+		
+		struct /* confetti */ {
+			uint16_t pixels_per_loop = 2;
+		} confetti;
+		
+		struct /* dvd */ {
+			uint16_t width = 3;
+			uint16_t height = 2;
+		} dvd;
+		
+		struct /* dynamic */ {
+			uint16_t single_loop_time = 40;
+			uint16_t multi_loop_time = 1400;
+			uint16_t big_loop_time = 50;
+			uint16_t big_size = 3;
+		} dynamic;
+		
+		struct /* fire */ {
+			uint16_t cooldown = 192;
+			uint16_t spark_chance = 5;
+		} fire;
+		
+		struct /* firework */ {
+			uint16_t drag = 255;
+			uint16_t bounce = 200;
+			uint16_t gravity = 10;
+			uint16_t sparks = 12;
+		} firework;
+		
+		struct /* gol */ {
+			uint16_t start_percentage = 90;
+			uint16_t blend_speed = 10;
+			uint16_t restart_after_steps = 100;
+		} gol;
+		
+		struct /* sines */ {
+			uint16_t count = 5;
+		} sines;
+		
+		struct /* snake */ {
+			uint16_t direction_change = 5;
+			uint16_t slowdown = 2;
+		} snake;
+	} effects;
+} settings;
+
+extern Setting all_settings[];
+extern const uint8_t all_settings_size;
diff --git a/src/effect_confetti.cpp b/src/effect_confetti.cpp
index e83dba4..3caccf6 100644
--- a/src/effect_confetti.cpp
+++ b/src/effect_confetti.cpp
@@ -5,7 +5,7 @@
 
 void ConfettiEffect::loop(uint16_t ms) {
 	window->fadeToBlackBy(3);
-	for (int i=0; i<EFFECT_CONFETTI_PIXELS_PER_LOOP; i++) {
+	for (int i=0; i<settings.effects.confetti.pixels_per_loop; i++) {
 		CRGB color = _getColor();
 		window->addPixelColor(random16(LED_COUNT), &color);
 	}
diff --git a/src/effect_cycle.cpp b/src/effect_cycle.cpp
index 26480f1..24811f1 100644
--- a/src/effect_cycle.cpp
+++ b/src/effect_cycle.cpp
@@ -11,8 +11,8 @@ CycleEffect::~CycleEffect() {
 }
 
 void CycleEffect::changeEffect() {
-    int new_id;
-    if (EFFECT_CYCLE_RANDOM) {
+    uint8_t new_id;
+    if (settings.effects.cycle.random && _effects_count>1) {
         do {
             new_id = random8(cycle_effects_count);
         } while (new_id == effect_id);
diff --git a/src/effect_dvd.cpp b/src/effect_dvd.cpp
index 5f23079..5239661 100644
--- a/src/effect_dvd.cpp
+++ b/src/effect_dvd.cpp
@@ -7,11 +7,11 @@ void DvdEffect::loop(uint16_t ms) {
 		_x += _x_dir;
 		_y += _y_dir;
 
-		if (_x == 0 || _x + EFFECT_DVD_WIDTH >= window->width) {
+		if (_x == 0 || _x + settings.effects.dvd.width >= window->width) {
 			_x_dir = -_x_dir;
 			dir_changed = true;
 		}
-		if (_y == 0 || _y + EFFECT_DVD_HEIGHT >= window->height) {
+		if (_y == 0 || _y + settings.effects.dvd.height >= window->height) {
 			_y_dir = -_y_dir;
 			dir_changed = true;
 		}
@@ -19,7 +19,7 @@ void DvdEffect::loop(uint16_t ms) {
 
 	window->clear();
 
-	for (int x=0; x<EFFECT_DVD_WIDTH; x++) for (int y=0; y<EFFECT_DVD_HEIGHT; y++) {
+	for (int x=0; x<settings.effects.dvd.width; x++) for (int y=0; y<settings.effects.dvd.height; y++) {
 		window->setPixel(_x + x, _y + y, (CRGB*)&_color);
 	}
 
diff --git a/src/effect_dynamic.cpp b/src/effect_dynamic.cpp
index ed02044..21c2d48 100644
--- a/src/effect_dynamic.cpp
+++ b/src/effect_dynamic.cpp
@@ -11,7 +11,7 @@ void SingleDynamicEffect::init() {
 }
 
 void SingleDynamicEffect::loop(uint16_t ms) {
-    EVERY_N_MILLISECONDS( EFFECT_SINGLE_DYNAMIC_LOOP_TIME ) {
+    EVERY_N_MILLISECONDS( settings.effects.dynamic.single_loop_time ) {
         tiles[random8(tile_count)] = CHSV(baseHue + random8(64), 180, 255);
     }
     this->draw();
@@ -29,7 +29,7 @@ boolean SingleDynamicEffect::can_be_shown_with_clock() {
 }
 
 void MultiDynamicEffect::loop(uint16_t ms) {
-    EVERY_N_MILLISECONDS( EFFECT_MULTI_DYNAMIC_LOOP_TIME ) {
+    EVERY_N_MILLISECONDS( settings.effects.dynamic.multi_loop_time ) {
         for (int i=0; i<tile_count; i++) tiles[i] = CHSV(baseHue + random8(64), 180, 255);
     }
     this->draw();
@@ -40,23 +40,15 @@ BigDynamicEffect::~BigDynamicEffect() {
 }
 
 void BigDynamicEffect::loop(uint16_t ms) {
-	EVERY_N_MILLISECONDS( EFFECT_BIG_DYNAMIC_LOOP_TIME ) {
-		uint8_t x = random8(0, window->width - EFFECT_BIG_DYNAMIC_SIZE + 1);
-		uint8_t y = random8(0, window->height - EFFECT_BIG_DYNAMIC_SIZE + 1);
+	EVERY_N_MILLISECONDS( settings.effects.dynamic.big_loop_time ) {
+		uint8_t x = random8(0, window->width - settings.effects.dynamic.big_size + 1);
+		uint8_t y = random8(0, window->height - settings.effects.dynamic.big_size + 1);
 		CRGB color = CHSV(random8(), 255, 255);
         CRGB black(0x000000);
 
-		for (uint8_t ix=0; ix<EFFECT_BIG_DYNAMIC_SIZE; ix++) for (uint8_t iy=0; iy<EFFECT_BIG_DYNAMIC_SIZE; iy++) {
+		for (uint8_t ix=0; ix<settings.effects.dynamic.big_size; ix++) for (uint8_t iy=0; iy<settings.effects.dynamic.big_size; iy++) {
 			window->setPixel(x+ix, y+iy, &color);
 		}
-        /*for (uint8_t ix=0; ix<EFFECT_BIG_DYNAMIC_SIZE+2; ix++) {
-            window->setPixel(x-1+ix, y-1, &black);
-            window->setPixel(x-1+ix, y+EFFECT_BIG_DYNAMIC_SIZE+1, &black);
-        }
-        for (uint8_t iy=0; iy<EFFECT_BIG_DYNAMIC_SIZE+2; iy++) {
-            window->setPixel(x-1, y-1+iy, &black);
-            window->setPixel(x+EFFECT_BIG_DYNAMIC_SIZE+1, y-1+iy, &black);
-        }*/
 	}
 }
 
diff --git a/src/effect_fire.cpp b/src/effect_fire.cpp
index 3db457b..0cf53e6 100644
--- a/src/effect_fire.cpp
+++ b/src/effect_fire.cpp
@@ -22,11 +22,11 @@ void FireEffect::loop(uint16_t ms) {
 }
 
 void FireEffect::cooldown() {
-	for(int i=0; i<(this->window->width * this->window->height); i++) this->data[i] = scale8(this->data[i], EFFECT_FIRE_COOLDOWN); // 240 or something
+	for(int i=0; i<(this->window->width * this->window->height); i++) this->data[i] = scale8(this->data[i], settings.effects.fire.cooldown);
 }
 
 void FireEffect::spark() {
-	for(int x=0; x<this->window->width; x++) if (random8(EFFECT_FIRE_SPARK_CHANCE)==0) this->data[x] = this->spark_temp();
+	for(int x=0; x<this->window->width; x++) if (random8(settings.effects.fire.spark_chance)==0) this->data[x] = this->spark_temp();
 }
 
 inline uint8_t FireEffect::spark_temp() {
diff --git a/src/effect_firework.cpp b/src/effect_firework.cpp
index 31c9e77..0810db6 100644
--- a/src/effect_firework.cpp
+++ b/src/effect_firework.cpp
@@ -56,13 +56,13 @@ void FireworkEffectDot::draw() {
 
 void FireworkEffectDot::move() {
 	if (!show) return;
-	_yv -= EFFECT_FIREWORK_GRAVITY;
-	_xv = _scale15by8_local(_xv, EFFECT_FIREWORK_DRAG);
-	_yv = _scale15by8_local(_yv, EFFECT_FIREWORK_DRAG);
+	_yv -= settings.effects.firework.gravity;
+	_xv = _scale15by8_local(_xv, settings.effects.firework.drag);
+	_yv = _scale15by8_local(_yv, settings.effects.firework.drag);
 
 	if (type == FIREWORK_DOT_SPARK) {
-		_xv = _scale15by8_local(_xv, EFFECT_FIREWORK_DRAG);
-		_yv = _scale15by8_local(_yv, EFFECT_FIREWORK_DRAG);
+		_xv = _scale15by8_local(_xv, settings.effects.firework.drag);
+		_yv = _scale15by8_local(_yv, settings.effects.firework.drag);
 		_color.nscale8(255);
 		if (!_color) {
 			show = 0;
@@ -75,7 +75,7 @@ void FireworkEffectDot::move() {
 			show = 0;
 		} else {
 			_yv = -_yv;
-			_yv = _scale15by8_local(_yv, EFFECT_FIREWORK_BOUNCE);
+			_yv = _scale15by8_local(_yv, settings.effects.firework.bounce);
 			if (_yv < 500) {
 				show = 0;
 			}
@@ -143,7 +143,7 @@ void FireworkEffect::loop(uint16_t ms) {
 	window->clear();
 	_dot->move();
 	_dot->draw();
-	for (int i=0; i<EFFECT_FIREWORK_SPARKS; i++) {
+	for (int i=0; i<settings.effects.firework.sparks; i++) {
 		_sparks[i]->move();
 		_sparks[i]->draw();
 	}
@@ -159,7 +159,7 @@ void FireworkEffect::loop(uint16_t ms) {
 	}
 
 	if (_skyburst) {
-		int nsparks = random8(EFFECT_FIREWORK_SPARKS / 2, EFFECT_FIREWORK_SPARKS + 1);
+		int nsparks = random8(settings.effects.firework.sparks / 2, settings.effects.firework.sparks + 1);
 		for (int i=0; i<nsparks; i++) {
 			_sparks[i]->sky_burst(_burst_x, _burst_y, _burst_yv, _burst_color);
 			_skyburst = 0;
@@ -169,14 +169,15 @@ void FireworkEffect::loop(uint16_t ms) {
 
 FireworkEffect::FireworkEffect() {
 	_dot = new FireworkEffectDot(window, this);
-	for (int i=0; i<EFFECT_FIREWORK_SPARKS; i++) {
+	_sparks = new FireworkEffectDot*[settings.effects.firework.sparks];
+	for (int i=0; i<settings.effects.firework.sparks; i++) {
 		_sparks[i] = new FireworkEffectDot(window, this);
 	}
 }
 
 FireworkEffect::~FireworkEffect() {
 	delete window;
-	for (int i=0; i<EFFECT_FIREWORK_SPARKS; i++) {
+	for (int i=0; i<settings.effects.firework.sparks; i++) {
 		delete _sparks[i];
 	}
 	delete _dot;
diff --git a/src/effect_gol.cpp b/src/effect_gol.cpp
index 691cce7..a53fe91 100644
--- a/src/effect_gol.cpp
+++ b/src/effect_gol.cpp
@@ -16,7 +16,7 @@ bool GolEffect::can_be_shown_with_clock() { return true; }
 
 void GolEffect::_initialize() {
 	for(uint16_t i=0; i<this->window->count; i++) {
-		_data[i] = random8() < EFFECT_GOL_START_PERCENTAGE ? 1 : 0;
+		_data[i] = random8() < settings.effects.gol.start_percentage ? 1 : 0;
 	}
 	_old_hue = _hue;
 	_hue = random8();
@@ -30,11 +30,11 @@ GolEffect::~GolEffect() {
 }
 
 void GolEffect::loop(uint16_t ms) {
-	if (EFFECT_GOL_BLEND_SPEED + _blend > 255) {
+	if (settings.effects.gol.blend_speed + _blend > 255) {
 		_blend = 0;
 		_advance();
 	} else {
-		_blend += EFFECT_GOL_BLEND_SPEED;
+		_blend += settings.effects.gol.blend_speed;
 	}
 
 	_draw();
@@ -43,7 +43,7 @@ void GolEffect::loop(uint16_t ms) {
 void GolEffect::_advance() {
 	_step++;
 	_old_hue = _hue;
-	if (_step >= EFFECT_GOL_RESTART_AFTER_STEPS) {
+	if (_step >= settings.effects.gol.restart_after_steps) {
 		_initialize();
 	} else {
 		for(uint16_t i=0; i<this->window->count; i++) {
diff --git a/src/effect_matrix.cpp b/src/effect_matrix.cpp
index 28ae6e3..f12b158 100644
--- a/src/effect_matrix.cpp
+++ b/src/effect_matrix.cpp
@@ -38,9 +38,9 @@ void MatrixEffectColumn::restart(bool completely_random) {
 		}
 	}
 
-    length = random8(EFFECT_MATRIX_LENGTH_MIN, EFFECT_MATRIX_LENGTH_MAX);
+    length = random8(settings.effects.matrix.length_min, settings.effects.matrix.length_max);
     running = true;
-    speed = random8(EFFECT_MATRIX_SPEED_MIN, EFFECT_MATRIX_SPEED_MAX);
+    speed = random8(settings.effects.matrix.speed_min, settings.effects.matrix.speed_max);
 }
 
 void MatrixEffectColumn::advance(uint16_t ms) {
diff --git a/src/effect_sines.cpp b/src/effect_sines.cpp
index cebe57f..6a4255a 100644
--- a/src/effect_sines.cpp
+++ b/src/effect_sines.cpp
@@ -25,13 +25,14 @@ void SinesEffectSinus::loop(uint16_t ms) {
 }
 
 SinesEffect::SinesEffect() {
-	for (int i=0; i<EFFECT_SINES_COUNT; i++) {
+	_sinus = new SinesEffectSinus*[settings.effects.sines.count];
+	for (int i=0; i<settings.effects.sines.count; i++) {
 		_sinus[i] = new SinesEffectSinus(window);
 	}
 }
 
 SinesEffect::~SinesEffect() {
-	for (int i=0; i<EFFECT_SINES_COUNT; i++) { delete _sinus[i]; }
+	for (int i=0; i<settings.effects.sines.count; i++) { delete _sinus[i]; }
 }
 
 boolean SinesEffect::can_be_shown_with_clock() {
@@ -42,7 +43,7 @@ void SinesEffect::loop(uint16_t ms) {
 	// do stuff
 	if (_step++ % 4) return; // Skip 3 out of 4 steps.
 	window->shift_down_and_blur();
-	for (int i=0; i<EFFECT_SINES_COUNT; i++) {
+	for (int i=0; i<settings.effects.sines.count; i++) {
 		_sinus[i]->loop(ms);
 	}
 }
diff --git a/src/effect_snake.cpp b/src/effect_snake.cpp
index 1007d3e..cf03fac 100644
--- a/src/effect_snake.cpp
+++ b/src/effect_snake.cpp
@@ -11,8 +11,8 @@ SnakeEffect::~SnakeEffect() {
 }
 
 void SnakeEffect::loop(uint16_t ms) {
-	if (run++ % EFFECT_SNAKE_SLOWDOWN == 0) { // Change the coordinates only on every n-th run.
-		if (random8(EFFECT_SNAKE_DIRECTION_CHANGE)==0 || is_turn_needed()) turn_random();
+	if (run++ % settings.effects.snake.slowdown == 0) { // Change the coordinates only on every n-th run.
+		if (random8(settings.effects.snake.direction_change)==0 || is_turn_needed()) turn_random();
 
 		this->coords = update_position(this->coords, this->direction);
 	}
diff --git a/src/effects.cpp b/src/effects.cpp
index b245af5..b0174b8 100644
--- a/src/effects.cpp
+++ b/src/effects.cpp
@@ -1,4 +1,5 @@
 #include "effects.h"
+#include "config.h"
 #include "my_fastled.h"
 #include <ErriezCRC32.h>
 #include "effect_bell.h"
diff --git a/src/http_server.cpp b/src/http_server.cpp
index 786cfee..49dd6b2 100644
--- a/src/http_server.cpp
+++ b/src/http_server.cpp
@@ -42,7 +42,7 @@ void http_server_setup() {
 	PGM_P text_plain = PSTR("text/plain");
 	http_server.on("/", HTTP_GET, [&](){
 		LOGln("HTTP * GET /");
-		String message = "<html><head><title>Pitrix</title></head><body><h1>Pitrix</h1><p>Known animations:</p>";
+		String message = "<html><head><title>Pitrix</title></head><body><h1>Pitrix</h1><a href='/settings'>Settings</a><p>Known animations:</p>";
 		if (!SPIFFS.begin()) {
 			message += "<strong>No SPIFFS file system found.</strong>";
 		} else {
@@ -57,6 +57,18 @@ void http_server_setup() {
 		message += "</body></html>";
 		http_server.send(200, "text/html", message);
 	});
+	http_server.on("/settings", HTTP_GET, [&]() {
+		String message = "<html><head><title>Pitrix settings</title></head><body><h1>Pitrix settings</h1><a href='/'>Back to main page</a><table>";
+		for (int i=0; i<all_settings_size; i++) {
+			message += "<tr><td>";
+			message += all_settings[i].name;
+			message += "</td><td>";
+			message += *all_settings[i].value;
+			message += "</td></tr>";
+		}
+		message += "</table></body></html>";
+		http_server.send(200, "text/html", message);
+	});
 	http_server.on("/delete", HTTP_GET, [&]() {
 		LOGln("HTTP * GET /delete");
 		if (http_server.args()==0) {