diff --git a/12_web_litlefs_ws2812b/.gitignore b/12_web_litlefs_ws2812b/.gitignore
new file mode 100644
index 0000000..89cc49c
--- /dev/null
+++ b/12_web_litlefs_ws2812b/.gitignore
@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
diff --git a/12_web_litlefs_ws2812b/.vscode/extensions.json b/12_web_litlefs_ws2812b/.vscode/extensions.json
new file mode 100644
index 0000000..080e70d
--- /dev/null
+++ b/12_web_litlefs_ws2812b/.vscode/extensions.json
@@ -0,0 +1,10 @@
+{
+ // See http://go.microsoft.com/fwlink/?LinkId=827846
+ // for the documentation about the extensions.json format
+ "recommendations": [
+ "platformio.platformio-ide"
+ ],
+ "unwantedRecommendations": [
+ "ms-vscode.cpptools-extension-pack"
+ ]
+}
diff --git a/12_web_litlefs_ws2812b/data/index.html b/12_web_litlefs_ws2812b/data/index.html
new file mode 100644
index 0000000..bbb7f26
--- /dev/null
+++ b/12_web_litlefs_ws2812b/data/index.html
@@ -0,0 +1,28 @@
+
+
+
+
+
+ Ovládání LED pásku
+
+
+ Ovládání LED pásku
+
+
+
+
\ No newline at end of file
diff --git a/12_web_litlefs_ws2812b/platformio.ini b/12_web_litlefs_ws2812b/platformio.ini
new file mode 100644
index 0000000..44a049c
--- /dev/null
+++ b/12_web_litlefs_ws2812b/platformio.ini
@@ -0,0 +1,20 @@
+; PlatformIO Project Configuration File
+;
+; Build options: build flags, source filter
+; Upload options: custom upload port, speed and extra flags
+; Library options: dependencies, extra library storages
+; Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:esp32dev]
+platform = espressif32
+board = esp32dev
+framework = arduino
+monitor_speed = 115200
+board_build.filesystem = littlefs
+lib_deps =
+ fastled/FastLED@^3.6.0
+ ESP32Async/AsyncTCP
+ ESP32Async/ESPAsyncWebServer
\ No newline at end of file
diff --git a/12_web_litlefs_ws2812b/src/main.cpp b/12_web_litlefs_ws2812b/src/main.cpp
new file mode 100644
index 0000000..983f5be
--- /dev/null
+++ b/12_web_litlefs_ws2812b/src/main.cpp
@@ -0,0 +1,53 @@
+#include
+#include
+#include
+#include
+#include
+
+const char* ssid = "tksteti";
+const char* password = "ProsimTeNevim";
+AsyncWebServer server(80);
+#define NUM_LEDS 4
+#define DATA_PIN 12
+CRGB leds[NUM_LEDS];
+
+void handleNastavit(AsyncWebServerRequest *request) {
+ if (request->hasParam("barva",true)) {
+ String barva = request->getParam("barva",true)->value();
+ long barvaLong = strtol(barva.substring(1,7).c_str(),NULL,16);
+ int r = (barvaLong >> 16) & 0xFF;
+ int g = (barvaLong >> 8) & 0xFF;
+ int b = barvaLong & 0xFF;
+
+ for (int i = 0; i < NUM_LEDS; i++) {
+ leds[i] = CRGB(r,g,b);
+ }
+ FastLED.show();
+ request->send(200,"text/plain","OK");
+ } else {
+ request->send(400,"text/plain","Bad Request");
+ }
+}
+
+void setup() {
+ Serial.begin(115200);
+ if(!LittleFS.begin(true)){
+ Serial.println("Chyba při zavádění (mounting) LittleFS");
+ return;
+ }
+ WiFi.begin(ssid,password);
+ while(WiFi.status() != WL_CONNECTED) {
+ Serial.print(".");
+ delay(50);
+ }
+ Serial.println("Připojeno k WiFi");
+ FastLED.addLeds(leds,NUM_LEDS);
+ server.on("/",HTTP_GET,[](AsyncWebServerRequest *request){
+ request ->send(LittleFS,"/index.html","text/html");
+ });
+ server.on("/nastavit",HTTP_POST,handleNastavit);
+ server.begin();
+}
+
+void loop() {
+}
\ No newline at end of file
diff --git a/12_web_litlefs_ws2812b/test/README b/12_web_litlefs_ws2812b/test/README
new file mode 100644
index 0000000..9b1e87b
--- /dev/null
+++ b/12_web_litlefs_ws2812b/test/README
@@ -0,0 +1,11 @@
+
+This directory is intended for PlatformIO Test Runner and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html