diff --git a/fs/animations.cfg b/fs/animations.cfg
index 8d76cd7..e679dab 100644
--- a/fs/animations.cfg
+++ b/fs/animations.cfg
@@ -1,16 +1,16 @@
 [
-	{"led": 0, "mode": "on", "ticks": 2},
-	{"led": 0, "mode": "off", "ticks": 2},
-	{"led": 1, "mode": "on", "ticks": 4},
-	{"led": 1, "mode": "off", "ticks": 4},
-	{"led": 2, "mode": "on", "ticks": 8},
-	{"led": 2, "mode": "off", "ticks": 8},
-	{"led": 3, "mode": "on", "ticks": 16},
-	{"led": 3, "mode": "off", "ticks": 16},
-	{"led": 4, "mode": "on", "ticks": 32},
-	{"led": 4, "mode": "off", "ticks": 32},
-	{"led": 5, "mode": "on", "ticks": 64},
-	{"led": 5, "mode": "off", "ticks": 64},
-	{"led": 6, "mode": "on", "ticks": 128},
-	{"led": 6, "mode": "off", "ticks": 128}
+	{"led": 0, "mode": "on", "ticks": 4},
+	{"led": 0, "mode": "off", "ticks": 4},
+	{"led": 1, "mode": "on", "ticks": 8},
+	{"led": 1, "mode": "off", "ticks": 8},
+	{"led": 2, "mode": "on", "ticks": 16},
+	{"led": 2, "mode": "off", "ticks": 16},
+	{"led": 3, "mode": "on", "ticks": 32},
+	{"led": 3, "mode": "off", "ticks": 32},
+	{"led": 4, "mode": "on", "ticks": 64},
+	{"led": 4, "mode": "off", "ticks": 64},
+	{"led": 5, "mode": "on", "ticks": 128},
+	{"led": 5, "mode": "off", "ticks": 128},
+	{"led": 6, "mode": "on", "ticks": 256},
+	{"led": 6, "mode": "off", "ticks": 256}
 ]
diff --git a/fs/api_dlite.js b/fs/api_dlite.js
new file mode 100644
index 0000000..1c3eda1
--- /dev/null
+++ b/fs/api_dlite.js
@@ -0,0 +1,27 @@
+let onBoardLed = ffi('int get_led_gpio_pin(void)')();
+let addColor = ffi('void addColor(char *,int,int,int)');
+let LEDDefinition_addByName = ffi('void LEDDefinition_addByName(char *, char *, char *, char *)');
+let addAnimationStep = ffi('void addAnimationStep(int, char *, int)');
+let LEDMode_on=1, LEDMode_off=2, LEDMode_blink=3, LEDMode_tv=4, LEDMode_fire=5;
+let LEDStateEngine_init = ffi('void LEDStateEngine_init(int, int)');
+let LEDStateEngine_start = ffi('void startLEDStateEngine(void)');
+let LEDStateEngine_pause = ffi('void pauseLEDStateEngine(void)');
+let LEDState_getRed = ffi('int LEDState_getLedRed(int)');
+let LEDState_getGreen = ffi('int LEDState_getLedGreen(int)');
+let LEDState_getBlue = ffi('int LEDState_getLedBlue(int)');
+let LEDState_getColorName = ffi('char * LEDState_getLedColorName(int)');
+let LEDState_getNextTick = ffi('int LEDState_getNextTick(int)');
+let LEDState_getCurrentTick = ffi('int LEDState_getCurrentTick(int)');
+let LEDDefinition_getLevel = ffi('char *LEDDefinition_getLevel(int)');
+let LEDDefinition_getRoom = ffi('char *LEDDefinition_getRoom(int)');
+let LEDDefinition_getId = ffi('char *LEDDefinition_getId(int)');
+let LEDDefinition_getOnColorRed = ffi('int LEDDefinition_getOnColorRed(int)');
+let LEDDefinition_getOnColorGreen = ffi('int LEDDefinition_getOnColorGreen(int)');
+let LEDDefinition_getOnColorBlue = ffi('int LEDDefinition_getOnColorBlue(int)');
+let getTicks = ffi('int getTicks(void)');
+let printColor = ffi('void printColor(char *)');
+let NeoPixel_show = ffi('void NeoPixel_show(void)');
+let NeoPixel_clear = ffi('void NeoPixel_clear(void)');
+let NeoPixel_set = ffi('void NeoPixel_set(int,int,int,int)');
+let LEDStateEngine_getMinTickTime = ffi('double LEDStateEngine_getMinTickTime(void)');
+let LEDStateEngine_getMaxTickTime = ffi('double LEDStateEngine_getMaxTickTime(void)');
diff --git a/fs/init.js b/fs/init.js
index fc9350c..661a90e 100644
--- a/fs/init.js
+++ b/fs/init.js
@@ -5,13 +5,10 @@ load('api_net.js');
 load('api_sys.js');
 load('api_rpc.js');
 load('api_timer.js');
-load("api_math.js");
-load("api_file.js");
-load("api_neopixel.js");
-
+load('api_file.js');
+load('api_dlite.js');
 
 // Helper C function get_led_gpio_pin() in src/main.c returns built-in LED GPIO
-let onBoardLed = ffi('int get_led_gpio_pin(void)')();
 let button = Cfg.get('pins.button');
 let topic = '/devices/' + Cfg.get('device.id') + '/events';
 
@@ -58,41 +55,12 @@ Net.setStatusEventHandler(function(ev, arg) {
   print('==> NET:', ev, evs);
 }, null);
 
-// Initialize LED controller
-let addColor = ffi('void addColor(char *,int,int,int)');
-let LEDDefinition_addByName = ffi('void LEDDefinition_addByName(char *, char *, char *, char *)');
-let addAnimationStep = ffi('void addAnimationStep(int, char *, int)');
-let LEDMode_on=1, LEDMode_off=2, LEDMode_blink=3, LEDMode_tv=4, LEDMode_fire=5;
-let LEDStateEngine_init = ffi('void LEDStateEngine_init(int, int)');
-let LEDStateEngine_start = ffi('void startLEDStateEngine(void)');
-let LEDStateEngine_pause = ffi('void pauseLEDStateEngine(void)');
-let LEDState_getRed = ffi('int LEDState_getLedRed(int)');
-let LEDState_getGreen = ffi('int LEDState_getLedGreen(int)');
-let LEDState_getBlue = ffi('int LEDState_getLedBlue(int)');
-let LEDState_getColorName = ffi('char * LEDState_getLedColorName(int)');
-let LEDState_getNextTick = ffi('int LEDState_getNextTick(int)');
-let LEDState_getCurrentTick = ffi('int LEDState_getCurrentTick(int)');
-let LEDDefinition_getLevel = ffi('char *LEDDefinition_getLevel(int)');
-let LEDDefinition_getRoom = ffi('char *LEDDefinition_getRoom(int)');
-let LEDDefinition_getId = ffi('char *LEDDefinition_getId(int)');
-let LEDDefinition_getOnColorRed = ffi('int LEDDefinition_getOnColorRed(int)');
-let LEDDefinition_getOnColorGreen = ffi('int LEDDefinition_getOnColorGreen(int)');
-let LEDDefinition_getOnColorBlue = ffi('int LEDDefinition_getOnColorBlue(int)');
-let getTicks = ffi('int getTicks(void)');
-let printColor = ffi('void printColor(char *)');
-let NeoPixel_show = ffi('void NeoPixel_show(void)');
-let NeoPixel_clear = ffi('void NeoPixel_clear(void)');
-let NeoPixel_set = ffi('void NeoPixel_set(int,int,int,int)');
-
 let pin = Cfg.get('led.pin');
 let configNumLeds = Cfg.get('led.count');
-let colorOrder = NeoPixel.GRB;
-//let strip = NeoPixel.create(pin, configNumLeds, colorOrder);
 let colorFile = Cfg.get('led.colorFile');
 let animationFile = Cfg.get('led.animationFile');
 let lampsFile = Cfg.get('led.lampsFile');
 let useDefaults = Cfg.get('led.useDefaults');
-let updateCycle = Cfg.get('led.updateCycle');
 let tickDuration = Cfg.get('led.tickDuration');
 let brightnessAdjustment = Cfg.get('led.brightness');
 let numberOfLeds = configNumLeds, numberOfLedDefs = 0; // from config files, count led definition entries
@@ -103,12 +71,6 @@ function showLedTestPattern() {
   let switchMod;
   for (i=0; i<configNumLeds; ++i) {
     switchMod = i - 6 * Math.floor(i/6);
-    /*if (switchMod === 0) strip.setPixel(i, 10, 10, 10);
-    if (switchMod === 1) strip.setPixel(i, 10, 10, 10);
-    if (switchMod === 2) strip.setPixel(i, 10, 100, 0);
-    if (switchMod === 3) strip.setPixel(i, 0, 10, 0);
-    if (switchMod === 4) strip.setPixel(i, 0, 10, 10);
-    if (switchMod === 5) strip.setPixel(i, 0, 0, 10);*/
     if (switchMod === 0) NeoPixel_set(i, 10, 10, 10);
     if (switchMod === 1) NeoPixel_set(i, 10, 10, 10);
     if (switchMod === 2) NeoPixel_set(i, 10, 100, 0);
@@ -117,24 +79,19 @@ function showLedTestPattern() {
     if (switchMod === 5) NeoPixel_set(i, 0, 0, 10);
     if (switchMod < 0 || switchMod > 5) print("WRONG -- should never reach this in switch statement!");
   }
-  //strip.show();
   NeoPixel_show();
 }
 
 function allLedOn() {
   let i;
   for (i=0; i<configNumLeds; ++i) {
-    //strip.setPixel(i, 10, 10, 10);
     NeoPixel_set(i, 10, 10, 10);
   }
-  //strip.show();
   NeoPixel_show();
 }
 
 function allLedOff() {
-  //strip.clear();
   NeoPixel_clear();
-  //strip.show();
   NeoPixel_show();
 }
 
@@ -203,8 +160,6 @@ function loadAnimDefs() {
 }
 
 function initialize() {
-  // initialize LEDs
-  // ===============
   print('***** Start initialization', getInfo());
   let i;
 
@@ -216,7 +171,6 @@ function initialize() {
     loadColorDefs();
     loadLedDefs();
     loadAnimDefs();
-
     // Initialize LED State Engine
     LEDStateEngine_init(pin, numberOfLeds);
   }
@@ -227,7 +181,6 @@ function initialize() {
   print('NumLEDs:', numberOfLeds);
   print('Ticks:', getTicks());
   print('Tick duration:', tickDuration, 'ms');
-  print('LED Update Cycle:', updateCycle, 'ms');
   print('Brightness:', brightnessAdjustment, '%');
   print('LED', 'Color', 'R', 'G', 'B', 'Tick', 'Level', 'Room', 'Id');
   print('---', '-----', '---', '---', '-----', '---', '-----', '----', '--');
@@ -237,34 +190,22 @@ function initialize() {
   }
 }
 
-Timer.set(3000, false, function() {
+Timer.set(1500, false, function() {
   initialize();
   allLedOn();
   print('***** Starting timer to delay test pattern generation');
-  /*print('***** Wait 1 second for other tasks to startup', getInfo());
-  Timer.set(1000, false, function() {
-    Timer.set(1000, false, function() {*/
-      allLedOff();
-      print('***** LED test pattern', getInfo());
-      showLedTestPattern();
-      print('***** Start LED state engine and LED-update timer', getInfo());
-      LEDStateEngine_start();
-      /*
-      Timer.set(updateCycle, true, function () {
-        let i;
-        for (i=0; i<numberOfLeds; ++i) {
-          strip.setPixel(i, adjustBrightness(LEDState_getRed(i)), adjustBrightness(LEDState_getGreen(i)), adjustBrightness(LEDState_getBlue(i)));
-        }
-        strip.show();
-      }, null);*/
-    /*}, null);
-  }, null);*/
+  allLedOff();
+  print('***** LED test pattern', getInfo());
+  showLedTestPattern();
+  print('***** Start LED state engine and LED-update timer', getInfo());
+  LEDStateEngine_start();
+  Timer.set(10000, true, function() {
+    print("Timer: minTickTime =", LEDStateEngine_getMinTickTime(), ", maxTickTime =", LEDStateEngine_getMaxTickTime());
+  }, null);
 }, null);
-print('***** End of init.js, sub tasks still running', getInfo());
-
 
 /* ------ RPC Handlers ------- */
-
+print('**** Adding RPC handlers');
 RPC.addHandler('led.setBrightness', function(args) {
   // print(args);
   if (args !== undefined && args.level !== undefined) {
@@ -352,3 +293,5 @@ RPC.addHandler('led.putAnimations', function(args) {
     return { error: 'animations: {led, mode, ticks} is required' };
   }
 }, null);
+
+print('***** End of init.js, sub tasks still running', getInfo());
diff --git a/mos.yml b/mos.yml
index bb697a5..f3946bb 100644
--- a/mos.yml
+++ b/mos.yml
@@ -33,9 +33,8 @@ config_schema:
   - ["led", "o", {"title": "LED control settings"}]
   - ["led.pin", "i", 2, {title: "Pin for data to WS2812 based LED chain"}]
   - ["led.useDefaults", "b", false, {title: "Use default values for colors, led-definitions, animations"}]
-  - ["led.count", "i", 32, {title: "Number of LEDs connected in the chain"}]
-  - ["led.updateCycle", "i", 250, {title: "Frequency of LED update in ms"}]
-  - ["led.tickDuration", "i", 250, {title: "Timebase: Duration of a tick in ms"}]
+  - ["led.count", "i", 7, {title: "Number of LEDs connected in the chain"}]
+  - ["led.tickDuration", "i", 25, {title: "Timebase: Duration of a tick in ms"}]
   - ["led.brightness", "i", 20, {title: "Default brightness in % (1-100)"}]
   - ["led.colorFile", "s", "colors.cfg", {title: "File name containing color definitions"}]
   - ["led.lampsFile", "s", "lamps.cfg", {title: "File name containing lamp definitions"}]
diff --git a/src/LEDState.c b/src/LEDState.c
index f1569fc..40135c8 100644
--- a/src/LEDState.c
+++ b/src/LEDState.c
@@ -1,7 +1,7 @@
 /* LEDState.c */
 
 #include "mgos_sys_config.h"
-
+#include "mgos_timers.h"
 #include "LEDDefinition.h"
 #include "LEDState.h"
 #include "AnimationConfig.h"
@@ -40,23 +40,30 @@ uint16_t LEDStateEngine_getNumberOfLeds() {
 	return theLEDStateEngine.numberOfLeds;
 }
 
+static double minTickTime = 99999.99;
+static double maxTickTime = 0;
 
 void LEDStateEngine_tick() {
+	double startTime = mgos_uptime();
 	++ticks;
 	// LOG(LL_INFO, ("# %d/%d", theLEDStateEngine.numberOfLeds, ticks));
 	for (int i=0; i<theLEDStateEngine.numberOfLeds; ++i) {
 		LEDState_tick(i);
 	}
 	NeoPixel_show();
+	double endTime = mgos_uptime();
+	double usedTime = endTime - startTime;
+	if (usedTime > maxTickTime) maxTickTime = usedTime;
+	if (usedTime < minTickTime) minTickTime = usedTime;
 }
+double LEDStateEngine_getMinTickTime() { return minTickTime; }
+double LEDStateEngine_getMaxTickTime() { return maxTickTime; }
 
 static uint8_t adjustBrightness(uint8_t value) {
 	return (value * mgos_sys_config_get_led_brightness()/100);
 }
 
 static void updateLedDisplay(LEDState *state) {
-	// strip.setPixel(i, adjustBrightness(LEDState_getRed(i)), adjustBrightness(LEDState_getGreen(i)), adjustBrightness(LEDState_getBlue(i)));
-	// strip.setPixel(i, adjustBrightness(LEDState_getRed(i)), adjustBrightness(LEDState_getGreen(i)), adjustBrightness(LEDState_getBlue(i)));
 	NeoPixel_set(state->index,
 		adjustBrightness(state->currentColor.red), adjustBrightness(state->currentColor.green), adjustBrightness(state->currentColor.blue));
 }
diff --git a/src/LEDState.h b/src/LEDState.h
index 790d5eb..558ee2d 100644
--- a/src/LEDState.h
+++ b/src/LEDState.h
@@ -38,6 +38,9 @@ extern void LEDStateEngine_addComment(char *comment);
 extern LEDState *LEDStateEngine_getLedState(int n);
 extern void LEDStateEngine_tick();
 extern uint16_t LEDStateEngine_getNumberOfLeds();
+extern double LEDStateEngine_getMinTickTime();
+extern double LEDStateEngine_getMaxTickTime();
+
 
 /* LEDState */
 extern void LEDState_init(int n, LEDDefinition *ledDefinition);