feat: add led strip class

main/CMakeLists.txt

@@ -3,6 +3,9 @@ set(SOURCES "audio_codecs/audio_codec.cc"
             "audio_codecs/box_audio_codec.cc"
             "audio_codecs/es8311_audio_codec.cc"
             "audio_codecs/cores3_audio_codec.cc"
+            "led_strip/single_led.cc"
+            "led_strip/multiple_led.cc"
+            "led_strip/led_strip_wrapper.cc"
             "display/display.cc"
             "display/no_display.cc"
             "display/st7789_display.cc"

main/application.cc

@@ -186,9 +186,8 @@ void Application::StopListening() {
 
 void Application::Start() {
     auto& board = Board::GetInstance();
-    auto builtin_led = board.GetBuiltinLed();
-    builtin_led->SetBlue();
-    builtin_led->StartContinuousBlink(100);
+    auto led_strip = board.GetLedStrip();
+    led_strip->LightOn(kStartup);
 
     /* Setup the display */
     auto display = board.GetDisplay();
@@ -246,14 +245,13 @@ void Application::Start() {
     wake_word_detect_.Initialize(codec->input_channels(), codec->input_reference());
     wake_word_detect_.OnVadStateChange([this](bool speaking) {
         Schedule([this, speaking]() {
-            auto builtin_led = Board::GetInstance().GetBuiltinLed();
+            auto led_strip = Board::GetInstance().GetLedStrip();
             if (chat_state_ == kChatStateListening) {
                 if (speaking) {
-                    builtin_led->SetRed(HIGH_BRIGHTNESS);
+                    led_strip->LightOn(kListeningAndSpeaking);
                 } else {
-                    builtin_led->SetRed(LOW_BRIGHTNESS);
+                    led_strip->LightOn(kListening);
                 }
-                builtin_led->TurnOn();
             }
         });
     });
@@ -382,8 +380,7 @@ void Application::Start() {
 
     // Blink the LED to indicate the device is running
     display->SetStatus("待命");
-    builtin_led->SetGreen();
-    builtin_led->BlinkOnce();
+    led_strip->LightOn(kStandby);
 
     SetChatState(kChatStateIdle);
 }
@@ -545,11 +542,11 @@ void Application::SetChatState(ChatState state) {
     background_task_.WaitForCompletion();
 
     auto display = Board::GetInstance().GetDisplay();
-    auto builtin_led = Board::GetInstance().GetBuiltinLed();
+    auto led_strip = Board::GetInstance().GetLedStrip();
     switch (state) {
         case kChatStateUnknown:
         case kChatStateIdle:
-            builtin_led->TurnOff();
+            led_strip->LightOff();
             display->SetStatus("待命");
             display->SetEmotion("neutral");
 #ifdef CONFIG_IDF_TARGET_ESP32S3
@@ -557,13 +554,11 @@ void Application::SetChatState(ChatState state) {
 #endif
             break;
         case kChatStateConnecting:
-            builtin_led->SetBlue();
-            builtin_led->TurnOn();
+            led_strip->LightOn(kConnecting);
             display->SetStatus("连接中...");
             break;
         case kChatStateListening:
-            builtin_led->SetRed();
-            builtin_led->TurnOn();
+            led_strip->LightOn(kListening);
             display->SetStatus("聆听中...");
             display->SetEmotion("neutral");
             ResetDecoder();
@@ -574,8 +569,7 @@ void Application::SetChatState(ChatState state) {
             UpdateIotStates();
             break;
         case kChatStateSpeaking:
-            builtin_led->SetGreen();
-            builtin_led->TurnOn();
+            led_strip->LightOn(kSpeaking);
             display->SetStatus("说话中...");
             ResetDecoder();
 #if CONFIG_IDF_TARGET_ESP32S3
@@ -583,8 +577,7 @@ void Application::SetChatState(ChatState state) {
 #endif
             break;
         case kChatStateUpgrading:
-            builtin_led->SetGreen();
-            builtin_led->StartContinuousBlink(100);
+            led_strip->LightOn(kUpgrading);
             break;
         default:
             ESP_LOGE(TAG, "Invalid chat state: %d", chat_state_);

main/boards/bread-compact-ml307/compact_ml307_board.cc

@@ -4,9 +4,9 @@
 #include "system_reset.h"
 #include "application.h"
 #include "button.h"
-#include "led.h"
 #include "config.h"
 #include "iot/thing_manager.h"
+#include "led_strip/single_led.h"
 
 #include <esp_log.h>
 #include <driver/i2c_master.h>
@@ -102,9 +102,9 @@ public:
         InitializeIot();
     }
 
-    virtual Led* GetBuiltinLed() override {
-        static Led led(BUILTIN_LED_GPIO);
-        return &led;
+    virtual LedStripWrapper* GetLedStrip() override {
+        static SingleLed led_strip(BUILTIN_LED_GPIO);
+        return &led_strip;
     }
 
     virtual AudioCodec* GetAudioCodec() override {

main/boards/bread-compact-wifi/compact_wifi_board.cc

@@ -4,9 +4,9 @@
 #include "system_reset.h"
 #include "application.h"
 #include "button.h"
-#include "led.h"
 #include "config.h"
 #include "iot/thing_manager.h"
+#include "led_strip/single_led.h"
 
 #include <wifi_station.h>
 #include <esp_log.h>
@@ -107,9 +107,9 @@ public:
         InitializeIot();
     }
 
-    virtual Led* GetBuiltinLed() override {
-        static Led led(BUILTIN_LED_GPIO);
-        return &led;
+    virtual LedStripWrapper* GetLedStrip() override {
+        static SingleLed led_strip(BUILTIN_LED_GPIO);
+        return &led_strip;
     }
 
     virtual AudioCodec* GetAudioCodec() override {

main/boards/common/board.h

@@ -7,7 +7,7 @@
 #include <udp.h>
 #include <string>
 
-#include "led.h"
+#include "led_strip/led_strip_wrapper.h"
 
 void* create_board();
 class AudioCodec;
@@ -32,7 +32,7 @@ public:
 
     virtual void StartNetwork() = 0;
     virtual ~Board() = default;
-    virtual Led* GetBuiltinLed() = 0;
+    virtual LedStripWrapper* GetLedStrip() = 0;
     virtual AudioCodec* GetAudioCodec() = 0;
     virtual Display* GetDisplay();
     virtual Http* CreateHttp() = 0;

main/boards/common/led.cc

@@ -6,41 +6,29 @@
 
 #define TAG "Led"
 
-Led::Led(gpio_num_t gpio) {
+Led::Led(gpio_num_t gpio, uint8_t max_leds) {
     if (gpio == GPIO_NUM_NC) {
         ESP_LOGI(TAG, "Builtin LED not connected");
         return;
     }
-    
+
     led_strip_config_t strip_config = {};
     strip_config.strip_gpio_num = gpio;
-    strip_config.max_leds = 1;
+    strip_config.max_leds = max_leds;
     strip_config.led_pixel_format = LED_PIXEL_FORMAT_GRB;
     strip_config.led_model = LED_MODEL_WS2812;
 
     led_strip_rmt_config_t rmt_config = {};
     rmt_config.resolution_hz = 10 * 1000 * 1000; // 10MHz
 
+    max_leds_ = max_leds;
     ESP_ERROR_CHECK(led_strip_new_rmt_device(&strip_config, &rmt_config, &led_strip_));
+    
     led_strip_clear(led_strip_);
-
     SetGrey();
-
-    esp_timer_create_args_t blink_timer_args = {
-        .callback = [](void *arg) {
-            auto led = static_cast<Led*>(arg);
-            led->OnBlinkTimer();
-        },
-        .arg = this,
-        .dispatch_method = ESP_TIMER_TASK,
-        .name = "Blink Timer",
-        .skip_unhandled_events = false,
-    };
-    ESP_ERROR_CHECK(esp_timer_create(&blink_timer_args, &blink_timer_));
 }
 
 Led::~Led() {
-    esp_timer_stop(blink_timer_);
     if (led_strip_ != nullptr) {
         led_strip_del(led_strip_);
     }
@@ -58,8 +46,9 @@ void Led::TurnOn() {
     }
     
     std::lock_guard<std::mutex> lock(mutex_);
-    esp_timer_stop(blink_timer_);
-    led_strip_set_pixel(led_strip_, 0, r_, g_, b_);
+    for (int i = 0; i < max_leds_; i++) {
+        led_strip_set_pixel(led_strip_, i, r_, g_, b_);
+    }
     led_strip_refresh(led_strip_);
 }
 
@@ -69,47 +58,5 @@ void Led::TurnOff() {
     }
 
     std::lock_guard<std::mutex> lock(mutex_);
-    esp_timer_stop(blink_timer_);
     led_strip_clear(led_strip_);
 }
-
-void Led::BlinkOnce() {
-    Blink(1, 100);
-}
-
-void Led::Blink(int times, int interval_ms) {
-    StartBlinkTask(times, interval_ms);
-}
-
-void Led::StartContinuousBlink(int interval_ms) {
-    StartBlinkTask(BLINK_INFINITE, interval_ms);
-}
-
-void Led::StartBlinkTask(int times, int interval_ms) {
-    if (led_strip_ == nullptr) {
-        return;
-    }
-
-    std::lock_guard<std::mutex> lock(mutex_);
-    esp_timer_stop(blink_timer_);
-    
-    led_strip_clear(led_strip_);
-    blink_counter_ = times * 2;
-    blink_interval_ms_ = interval_ms;
-    esp_timer_start_periodic(blink_timer_, interval_ms * 1000);
-}
-
-void Led::OnBlinkTimer() {
-    std::lock_guard<std::mutex> lock(mutex_);
-    blink_counter_--;
-    if (blink_counter_ & 1) {
-        led_strip_set_pixel(led_strip_, 0, r_, g_, b_);
-        led_strip_refresh(led_strip_);
-    } else {
-        led_strip_clear(led_strip_);
-
-        if (blink_counter_ == 0) {
-            esp_timer_stop(blink_timer_);
-        }
-    }
-}

main/boards/common/led.h

@@ -6,9 +6,6 @@
 #include <atomic>
 #include <mutex>
 
-#define BLINK_INFINITE -1
-#define BLINK_TASK_STOPPED_BIT BIT0
-#define BLINK_TASK_RUNNING_BIT BIT1
 
 #define DEFAULT_BRIGHTNESS 4
 #define HIGH_BRIGHTNESS 16
@@ -16,12 +13,12 @@
 
 class Led {
 public:
-    Led(gpio_num_t gpio);
+    Led(gpio_num_t gpio, uint8_t max_leds);
     ~Led();
 
-    void BlinkOnce();
-    void Blink(int times, int interval_ms);
-    void StartContinuousBlink(int interval_ms);
+    led_strip_handle_t led_strip() { return led_strip_; }
+    uint8_t max_leds() { return max_leds_; }
+
     void TurnOn();
     void TurnOff();
     void SetColor(uint8_t r, uint8_t g, uint8_t b);
@@ -30,18 +27,12 @@ public:
     void SetRed(uint8_t brightness = DEFAULT_BRIGHTNESS) { SetColor(brightness, 0, 0); }
     void SetGreen(uint8_t brightness = DEFAULT_BRIGHTNESS) { SetColor(0, brightness, 0); }
     void SetBlue(uint8_t brightness = DEFAULT_BRIGHTNESS) { SetColor(0, 0, brightness); }
-
+    
 private:
     std::mutex mutex_;
-    TaskHandle_t blink_task_ = nullptr;
+    uint8_t max_leds_ = -1;
     led_strip_handle_t led_strip_ = nullptr;
     uint8_t r_ = 0, g_ = 0, b_ = 0;
-    int blink_counter_ = 0;
-    int blink_interval_ms_ = 0;
-    esp_timer_handle_t blink_timer_ = nullptr;
-
-    void StartBlinkTask(int times, int interval_ms);
-    void OnBlinkTimer();
 };
 
 #endif // _LED_H_

main/boards/common/wifi_board.cc

@@ -38,15 +38,14 @@ static std::string rssi_to_string(int rssi) {
 void WifiBoard::StartNetwork() {
     auto& application = Application::GetInstance();
     auto display = Board::GetInstance().GetDisplay();
-    auto builtin_led = Board::GetInstance().GetBuiltinLed();
+    auto led_strip = Board::GetInstance().GetLedStrip();
 
     // Try to connect to WiFi, if failed, launch the WiFi configuration AP
     auto& wifi_station = WifiStation::GetInstance();
     display->SetStatus(std::string("正在连接 ") + wifi_station.GetSsid());
     wifi_station.Start();
     if (!wifi_station.IsConnected()) {
-        builtin_led->SetBlue();
-        builtin_led->Blink(1000, 500);
+        led_strip->LightOn(kConnecting);
         auto& wifi_ap = WifiConfigurationAp::GetInstance();
         wifi_ap.SetSsidPrefix("Xiaozhi");
         wifi_ap.Start();

main/boards/esp-box-3/esp_box3_board.cc

@@ -5,9 +5,9 @@
 #include "font_awesome_symbols.h"
 #include "application.h"
 #include "button.h"
-#include "led.h"
 #include "config.h"
 #include "iot/thing_manager.h"
+#include "led_strip/single_led.h"
 
 #include <esp_log.h>
 #include <esp_lcd_panel_vendor.h>
@@ -214,10 +214,10 @@ public:
         InitializeButtons();
         InitializeIot();
     }
-
-    virtual Led* GetBuiltinLed() override {
-        static Led led(GPIO_NUM_NC);
-        return &led;
+    
+    virtual LedStripWrapper* GetLedStrip() override {
+        static SingleLed led_strip(GPIO_NUM_NC);
+        return &led_strip;
     }
 
     virtual AudioCodec* GetAudioCodec() override {

main/boards/kevin-box-1/kevin_box_board.cc

@@ -3,9 +3,9 @@
 #include "display/ssd1306_display.h"
 #include "application.h"
 #include "button.h"
-#include "led.h"
 #include "config.h"
 #include "iot/thing_manager.h"
+#include "led_strip/single_led.h"
 
 #include <esp_log.h>
 #include <esp_spiffs.h>
@@ -135,10 +135,10 @@ public:
         InitializeButtons();
         InitializeIot();
     }
-
-    virtual Led* GetBuiltinLed() override {
-        static Led led(BUILTIN_LED_GPIO);
-        return &led;
+    
+    virtual LedStripWrapper* GetLedStrip() override {
+        static SingleLed led_strip(BUILTIN_LED_GPIO);
+        return &led_strip;
     }
 
     virtual AudioCodec* GetAudioCodec() override {

main/boards/kevin-box-2/kevin_box_board.cc

@@ -3,10 +3,10 @@
 #include "display/ssd1306_display.h"
 #include "application.h"
 #include "button.h"
-#include "led.h"
 #include "config.h"
 #include "axp2101.h"
 #include "iot/thing_manager.h"
+#include "led_strip/single_led.h"
 
 #include <esp_log.h>
 #include <esp_spiffs.h>
@@ -179,10 +179,10 @@ public:
         InitializePowerSaveTimer();
         InitializeIot();
     }
-
-    virtual Led* GetBuiltinLed() override {
-        static Led led(BUILTIN_LED_GPIO);
-        return &led;
+    
+    virtual LedStripWrapper* GetLedStrip() override {
+        static SingleLed led_strip(BUILTIN_LED_GPIO);
+        return &led_strip;
     }
 
     virtual AudioCodec* GetAudioCodec() override {

main/boards/kevin-c3/config.h

@@ -17,7 +17,7 @@
 #define AUDIO_CODEC_I2C_SCL_PIN  GPIO_NUM_1
 #define AUDIO_CODEC_ES8311_ADDR  ES8311_CODEC_DEFAULT_ADDR
 
-#define BUILTIN_LED_GPIO        GPIO_NUM_2
+#define BUILTIN_LED_GPIO        GPIO_NUM_5
 #define BOOT_BUTTON_GPIO        GPIO_NUM_9
 
 

main/boards/kevin-c3/kevin_box_board.cc

@@ -2,9 +2,9 @@
 #include "audio_codecs/es8311_audio_codec.h"
 #include "application.h"
 #include "button.h"
-#include "led.h"
 #include "config.h"
 #include "iot/thing_manager.h"
+#include "led_strip/multiple_led.h"
 
 #include <wifi_station.h>
 #include <esp_log.h>
@@ -60,15 +60,15 @@ public:
     KevinBoxBoard() : boot_button_(BOOT_BUTTON_GPIO) {  
         // 把 ESP32C3 的 VDD SPI 引脚作为普通 GPIO 口使用
         esp_efuse_write_field_bit(ESP_EFUSE_VDD_SPI_AS_GPIO);
-
+        
         InitializeCodecI2c();
         InitializeButtons();
         InitializeIot();
     }
 
-    virtual Led* GetBuiltinLed() override {
-        static Led led(BUILTIN_LED_GPIO);
-        return &led;
+    virtual LedStripWrapper* GetLedStrip() override {
+        static MultipleLed led_strip(BUILTIN_LED_GPIO, 8);
+        return &led_strip;
     }
 
     virtual AudioCodec* GetAudioCodec() override {

main/boards/lichuang-dev/lichuang_dev_board.cc

@@ -3,10 +3,10 @@
 #include "display/st7789_display.h"
 #include "application.h"
 #include "button.h"
-#include "led.h"
 #include "config.h"
 #include "i2c_device.h"
 #include "iot/thing_manager.h"
+#include "led_strip/single_led.h"
 
 #include <esp_log.h>
 #include <esp_lcd_panel_vendor.h>
@@ -135,9 +135,9 @@ public:
         InitializeIot();
     }
 
-    virtual Led* GetBuiltinLed() override {
-        static Led led(GPIO_NUM_NC);
-        return &led;
+    virtual LedStripWrapper* GetLedStrip() override {
+        static SingleLed led_strip(GPIO_NUM_NC);
+        return &led_strip;
     }
 
     virtual AudioCodec* GetAudioCodec() override {

main/led_strip/led_strip_wrapper.cc

@@ -0,0 +1,219 @@
+#include "led_strip_wrapper.h"
+#include "board.h"
+
+#include <cstring>
+#include <cmath>
+#include <esp_log.h>
+
+#define TAG "LedStripWrapper"
+
+LedStripWrapper::LedStripWrapper(gpio_num_t gpio, uint8_t max_leds) {
+    if (gpio == GPIO_NUM_NC) {
+        ESP_LOGI(TAG, "Builtin LED not connected");
+        return;
+    }
+
+    led_ = new Led(gpio, max_leds);
+
+    esp_timer_create_args_t led_strip_timer_args = {
+        .callback = [](void *arg) {
+            auto light = static_cast<LedStripWrapper*>(arg);
+            light->OnBlinkTimer();
+        },
+        .arg = this,
+        .dispatch_method = ESP_TIMER_TASK,
+        .name = "Led Strip Timer",
+        .skip_unhandled_events = false,
+    };
+    ESP_ERROR_CHECK(esp_timer_create(&led_strip_timer_args, &led_strip_timer_));
+}
+
+LedStripWrapper::~LedStripWrapper() {
+    if (led_strip_timer_ != nullptr) {
+        esp_timer_delete(led_strip_timer_);
+    }
+    if (led_ != nullptr) {
+        delete led_;
+    }
+}
+
+void LedStripWrapper::OnBlinkTimer() {
+    std::lock_guard<std::mutex> lock(mutex_);
+    counter_--;
+    timer_callback_();
+}
+
+void LedStripWrapper::SetLedBasicColor(LedBasicColor color, uint8_t brightness) {
+    if (led_ == nullptr) {
+        ESP_LOGE(TAG, "Builtin LED not connected");
+        return;
+    }
+
+    switch (color) {
+        case kLedColorWhite:
+            led_->SetWhite(brightness);
+            break;
+        case kLedColorGrey:
+            led_->SetGrey(brightness);
+            break;
+        case kLedColorRed:
+            led_->SetRed(brightness);
+            break;
+        case kLedColorGreen:
+            led_->SetGreen(brightness);
+            break;
+        case kLedColorBlue:
+            led_->SetBlue(brightness);
+            break;
+    }
+}
+
+void LedStripWrapper::SetLedStripBasicColor(uint8_t index, LedBasicColor color, uint8_t brightness) {
+    if (led_ == nullptr) {
+        ESP_LOGE(TAG, "Builtin LED not connected");
+        return;
+    }
+
+    if (index >= led_->max_leds()) {
+        ESP_LOGE(TAG, "Invalid led index: %d", index);
+        return;
+    }
+
+    switch (color) {
+        case kLedColorWhite:
+            led_strip_set_pixel(led_->led_strip(), index, brightness, brightness, brightness);
+            break;
+        case kLedColorGrey:
+            led_strip_set_pixel(led_->led_strip(), index, brightness, brightness, brightness);
+            break;
+        case kLedColorRed:
+            led_strip_set_pixel(led_->led_strip(), index, brightness, 0, 0);
+            break;
+        case kLedColorGreen:
+            led_strip_set_pixel(led_->led_strip(), index, 0, brightness, 0);
+            break;
+        case kLedColorBlue:
+            led_strip_set_pixel(led_->led_strip(), index, 0, 0, brightness);
+            break;
+    }
+}
+
+void LedStripWrapper::StartBlinkTask(uint32_t times, uint32_t interval_ms) {
+    std::lock_guard<std::mutex> lock(mutex_);
+
+    if (led_ == nullptr) {
+        ESP_LOGE(TAG, "Builtin LED not connected");
+        return;
+    }
+    
+    esp_timer_stop(led_strip_timer_);
+    counter_ = times * 2;
+    timer_callback_ = [this]() {
+        if (counter_ & 1) {
+            led_->TurnOn();
+        } else {
+            led_->TurnOff();
+            if (counter_ == 0) {
+                esp_timer_stop(led_strip_timer_);
+            }
+        }
+    };
+    esp_timer_start_periodic(led_strip_timer_, interval_ms * 1000);
+}
+
+void LedStripWrapper::BlinkOnce(LedBasicColor color, uint8_t brightness) {
+    Blink(color, brightness, 1, 100);
+}
+
+void LedStripWrapper::Blink(LedBasicColor color, uint32_t times, uint32_t interval_ms, uint8_t brightness) {
+    SetLedBasicColor(color, brightness);
+    StartBlinkTask(times, interval_ms);
+}
+
+void LedStripWrapper::ContinuousBlink(LedBasicColor color, uint32_t interval_ms, uint8_t brightness) {
+    SetLedBasicColor(color, brightness);
+    StartBlinkTask(COUNTER_INFINITE, interval_ms);
+}
+
+void LedStripWrapper::StaticLight(LedBasicColor color, uint8_t brightness) {
+    std::lock_guard<std::mutex> lock(mutex_);
+    
+    if (led_ == nullptr) {
+        ESP_LOGE(TAG, "Builtin LED not connected");
+        return;
+    }
+
+    SetLedBasicColor(color, brightness);
+    esp_timer_stop(led_strip_timer_);
+    led_->TurnOn();
+}
+
+void LedStripWrapper::ChasingLight(LedBasicColor base_color, LedBasicColor color, uint32_t interval_ms, uint8_t brightness) {
+    std::lock_guard<std::mutex> lock(mutex_);
+
+    if (led_ == nullptr) {
+        ESP_LOGE(TAG, "Builtin LED not connected");
+        return;
+    }
+
+    esp_timer_stop(led_strip_timer_);
+    counter_ = COUNTER_INFINITE;
+    timer_callback_ = [this, base_color, color, brightness]() {
+        auto index = counter_ % led_->max_leds();
+        for (uint8_t i = 0; i < led_->max_leds(); i++) {
+            if (i == index || i == (index + 1) % led_->max_leds()) {
+                SetLedStripBasicColor(i, color, brightness);
+            } else {
+                SetLedStripBasicColor(i, base_color, LOW_BRIGHTNESS);
+            }
+        }
+        led_strip_refresh(led_->led_strip());
+    };
+    esp_timer_start_periodic(led_strip_timer_, interval_ms * 1000);
+}
+
+void LedStripWrapper::BreathLight(LedBasicColor color, uint32_t interval_ms) {
+    std::lock_guard<std::mutex> lock(mutex_);
+
+    if (led_ == nullptr) {
+        ESP_LOGE(TAG, "Builtin LED not connected");
+        return;
+    }
+
+    esp_timer_stop(led_strip_timer_);
+    counter_ = COUNTER_INFINITE;
+    timer_callback_ = [this, color]() {
+        static bool increase = true;
+        static uint32_t brightness = LOW_BRIGHTNESS;
+
+        for (uint8_t i = 0; i < led_->max_leds(); i++) {
+            SetLedStripBasicColor(i, color, brightness);
+        }
+        led_strip_refresh(led_->led_strip());
+        
+        if (brightness == HIGH_BRIGHTNESS) {
+            increase = false;
+        } else if (brightness == LOW_BRIGHTNESS) {
+            increase = true;
+        }
+
+        if (increase) {
+            brightness += 2;
+        } else {
+            brightness -= 2;
+        }
+    };
+    esp_timer_start_periodic(led_strip_timer_, interval_ms * 1000);
+}
+
+void LedStripWrapper::LightOff() {
+    std::lock_guard<std::mutex> lock(mutex_);
+
+    if (led_ == nullptr) {
+        ESP_LOGE(TAG, "Builtin LED not connected");
+        return;
+    }
+
+    esp_timer_stop(led_strip_timer_);
+    led_->TurnOff();
+}

main/led_strip/led_strip_wrapper.h

@@ -0,0 +1,58 @@
+#ifndef _LED_STRIP_WRAPPER_H_
+#define _LED_STRIP_WRAPPER_H_
+
+#include "led.h"
+
+#define COUNTER_INFINITE -1
+
+enum LedStripEvent {
+    kStartup,
+    kListening,
+    kListeningAndSpeaking,
+    kSpeaking,
+    kStandby,
+    kConnecting,
+    kUpgrading,
+};
+
+enum LedBasicColor {
+    kLedColorWhite,
+    kLedColorGrey,
+    kLedColorRed,
+    kLedColorGreen,
+    kLedColorBlue,
+};
+
+typedef std::function<void()> TimerCallback;
+
+class LedStripWrapper {
+private:
+    Led* led_ = nullptr;
+    std::mutex mutex_;
+    
+    uint32_t counter_ = 0;
+    esp_timer_handle_t led_strip_timer_ = nullptr;
+    TimerCallback timer_callback_;
+
+    void SetLedBasicColor(LedBasicColor color, uint8_t brightness);
+    void SetLedStripBasicColor(uint8_t index, LedBasicColor color, uint8_t brightness = DEFAULT_BRIGHTNESS);
+    void StartBlinkTask(uint32_t times, uint32_t interval_ms);
+    void OnBlinkTimer();
+
+public:
+    LedStripWrapper(gpio_num_t gpio, uint8_t max_leds);
+    virtual ~LedStripWrapper();
+
+    void LightOff();
+    virtual void LightOn(LedStripEvent event) = 0;
+
+protected:
+    void BlinkOnce(LedBasicColor color, uint8_t brightness = DEFAULT_BRIGHTNESS);
+    void Blink(LedBasicColor color, uint32_t times, uint32_t interval_ms, uint8_t brightness = DEFAULT_BRIGHTNESS);
+    void ContinuousBlink(LedBasicColor color, uint32_t interval_ms, uint8_t brightness = DEFAULT_BRIGHTNESS);
+    void StaticLight(LedBasicColor color, uint8_t brightness = DEFAULT_BRIGHTNESS);
+    void ChasingLight(LedBasicColor base_color, LedBasicColor color, uint32_t interval_ms, uint8_t brightness = DEFAULT_BRIGHTNESS);
+    void BreathLight(LedBasicColor color, uint32_t interval_ms);
+};
+
+#endif // _LED_STRIP_WRAPPER_H_

main/led_strip/multiple_led.cc

@@ -0,0 +1,39 @@
+#include "multiple_led.h"
+#include <esp_log.h>
+
+#define TAG "MultipleLed"
+
+MultipleLed::MultipleLed(gpio_num_t gpio, uint8_t max_leds) : LedStripWrapper(gpio, max_leds) {
+}
+
+MultipleLed::~MultipleLed() {
+}
+
+void MultipleLed::LightOn(LedStripEvent event) {
+    switch (event) {
+        case kStartup:
+            ChasingLight(kLedColorWhite, kLedColorBlue, 100, HIGH_BRIGHTNESS);
+            break;
+        case kListeningAndSpeaking:
+            BreathLight(kLedColorRed, 100);
+            break;
+        case kListening:
+            BreathLight(kLedColorRed, 100);
+            break;
+        case kSpeaking:
+            StaticLight(kLedColorGreen, HIGH_BRIGHTNESS);
+            break;
+        case kStandby:
+            BlinkOnce(kLedColorGreen);
+            break;
+        case kConnecting:
+            Blink(kLedColorBlue, 1000, 500);
+            break;
+        case kUpgrading:
+            ContinuousBlink(kLedColorGreen, 100);
+            break;
+        default:
+            ESP_LOGE(TAG, "Invalid led strip event: %d", event);
+            return;
+    }
+}

main/led_strip/multiple_led.h

@@ -0,0 +1,14 @@
+#ifndef _LED_STRIP_EFFECT_V2_H_
+#define _LED_STRIP_EFFECT_V2_H_
+
+#include "led_strip_wrapper.h"
+
+class MultipleLed : public LedStripWrapper {
+public:
+    MultipleLed(gpio_num_t gpio, uint8_t max_leds);
+    virtual ~MultipleLed();
+
+    void LightOn(LedStripEvent event) override;
+};
+
+#endif // _LED_STRIP_EFFECT_V2_H_

main/led_strip/single_led.cc

@@ -0,0 +1,39 @@
+#include "single_led.h"
+#include <esp_log.h> 
+
+#define TAG "SingleLed"
+
+SingleLed::SingleLed(gpio_num_t gpio) : LedStripWrapper(gpio, 1) {
+}
+
+SingleLed::~SingleLed() {
+}
+
+void SingleLed::LightOn(LedStripEvent event) {
+    switch (event) {
+        case kStartup:
+            ContinuousBlink(kLedColorBlue, 100);
+            break;
+        case kListeningAndSpeaking:
+            StaticLight(kLedColorRed, HIGH_BRIGHTNESS);
+            break;
+        case kListening:
+            StaticLight(kLedColorRed, LOW_BRIGHTNESS);
+            break;
+        case kSpeaking:
+            StaticLight(kLedColorGreen, HIGH_BRIGHTNESS);
+            break;
+        case kStandby:
+            BlinkOnce(kLedColorGreen);
+            break;
+        case kConnecting:
+            Blink(kLedColorBlue, 1000, 500);
+            break;
+        case kUpgrading:
+            ContinuousBlink(kLedColorGreen, 100);
+            break;
+        default:
+            ESP_LOGE(TAG, "Invalid led strip event: %d", event);
+            return;
+    }
+}

main/led_strip/single_led.h

@@ -0,0 +1,14 @@
+#ifndef _LED_STRIP_EFFECT_V1_H_
+#define _LED_STRIP_EFFECT_V1_H_
+
+#include "led_strip_wrapper.h"
+
+class SingleLed : public LedStripWrapper {
+public:
+    SingleLed(gpio_num_t gpio);
+    virtual ~SingleLed();
+
+    void LightOn(LedStripEvent event) override;
+};
+
+#endif // _LED_STRIP_EFFECT_V1_H_