Sonoff L1 ESPHome Component

led_strip_1.yaml

esphome:
  name: led_strip_1
  platform: ESP8266
  board: esp8285
  includes:
    - custom_components/sonoff_l1.h

wifi:
  

captive_portal:

# Logging must be disabled in order for the ESP to comunicate with the Nuvotron
# logger:
#   hardware_uart: UART0_SWAP
#   level: VERBOSE

# Enable Home Assistant API
api:

ota:

light:
- platform: custom
  lambda: |-
    auto light_out = new SonoffL1();
    App.register_component(light_out);
    return {light_out};

  lights:
    - name: "LED Strip 1"
      effects:
        - lambda:
            name: Colorful Gradient (Smooth)
            lambda: |-
              auto light_out = new SonoffL1();
              light_out->setModeGradient();
        - lambda:
            name: Colorful Breath (Fade)
            lambda: |-
              auto light_out = new SonoffL1();
              light_out->setModeBreath();
        - lambda:
            name: RGB Gradient
            lambda: |-
              auto light_out = new SonoffL1();
              light_out->setModeRGBGradient();
        - lambda:
            name: RGB Pulse (Strobe)
            lambda: |-
              auto light_out = new SonoffL1();
              light_out->setModeRGBPulse();
        - lambda:
            name: RGB Breath
            lambda: |-
              auto light_out = new SonoffL1();
              light_out->setModeRGBBreath();
        - lambda:
            name: RGB Strobe (Flash)
            lambda: |-
              auto light_out = new SonoffL1();
              light_out->setModeRGBStrobe();
        - lambda:
            name: Sound Reactive
            lambda: |-
              auto light_out = new SonoffL1();
              light_out->setModeSync();

sonoff_l1.h

#include "esphome.h"

class SonoffL1 : public Component, public LightOutput {

  #define SONOFF_L1_MODE_COLORFUL           1  // [Color key] Colorful (static color)
  #define SONOFF_L1_MODE_COLORFUL_GRADIENT  2  // [SMOOTH] Colorful Gradient
  #define SONOFF_L1_MODE_COLORFUL_BREATH    3  // [FADE] Colorful Breath
  #define SONOFF_L1_MODE_DIY_GRADIENT       4  // DIY Gradient (fade in and out) [Speed 1- 100, color]
  #define SONOFF_L1_MODE_DIY_PULSE          5  // DIY Pulse  (faster fade in and out) [Speed 1- 100, color]
  #define SONOFF_L1_MODE_DIY_BREATH         6  // DIY Breath (toggle on/off) [Speed 1- 100, color]
  #define SONOFF_L1_MODE_DIY_STROBE         7  // DIY Strobe (faster toggle on/off) [Speed 1- 100, color]
  #define SONOFF_L1_MODE_RGB_GRADIENT       8  // RGB Gradient
  #define SONOFF_L1_MODE_RGB_PULSE          9  // [STROBE] RGB Pulse
  #define SONOFF_L1_MODE_RGB_BREATH        10  // RGB Breath
  #define SONOFF_L1_MODE_RGB_STROBE        11  // [FLASH] RGB strobe
  #define SONOFF_L1_MODE_SYNC_TO_MUSIC     12  // Sync to music [Speed 1- 100, sensitivity 1 - 10]

 public:

  int mode = SONOFF_L1_MODE_COLORFUL;

  void setup() override {
    // nothing to do here
    Serial.begin(19200);
  }
  LightTraits get_traits() override {
    // return the traits this light supports
    auto traits = LightTraits();
    
    // Use Supported Color Modes for 2021.8 and later
    traits.set_supported_color_modes({light::ColorMode::RGB});
    
    // Use Individual traits for earlier versions
    // traits.set_supports_brightness(true);
    // traits.set_supports_rgb(true);
    // traits.set_supports_rgb_white_value(false);
    // traits.set_supports_color_temperature(false);
    return traits;
  }

  void write_state(LightState *state) override {
    // This will be called by the light to get a new state to be written.
    float red, green, blue;
    // use any of the provided current_values methods
    state->current_values_as_rgb(&red, &green, &blue);


    // Convert to 0-255
    int redValue, greenValue, blueValue;
    redValue = floor(red * 255);
    greenValue = floor(green * 255);
    blueValue = floor(blue * 255);

    bool ledState;
    state->current_values_as_binary(&ledState);

    float brightnessPercent;
    state->current_values_as_brightness(&brightnessPercent);

    // Convert to 0-100
    int brightness = floor(brightnessPercent * 100);

    char buffer[140];
    snprintf_P(buffer, sizeof(buffer), PSTR("AT+UPDATE=\"sequence\":\"%d%03d\",\"switch\":\"%s\",\"light_type\":1,\"colorR\":%d,\"colorG\":%d,\"colorB\":%d,\"bright\":%d,\"mode\":%d"),
    millis(), millis()%1000,
    ledState ? "on" : "off",
    redValue, greenValue, blueValue,
    brightness,
    SONOFF_L1_MODE_COLORFUL);

    Serial.print(buffer);
    Serial.write(0x1B);
    Serial.flush();

  }

  // SONOFF_L1_MODE_COLORFUL_GRADIENT
  void setModeGradient() {
    char buffer[140];
    snprintf_P(buffer, sizeof(buffer), PSTR("AT+UPDATE=\"sequence\":\"%d%03d\",\"mode\":%d"),
    millis(), millis()%1000,
    SONOFF_L1_MODE_COLORFUL_GRADIENT
    );

    Serial.print(buffer);
    Serial.write(0x1B);
    Serial.flush();
  }

  // SONOFF_L1_MODE_COLORFUL_BREATH
  void setModeBreath() {
    char buffer[140];
    snprintf_P(buffer, sizeof(buffer), PSTR("AT+UPDATE=\"sequence\":\"%d%03d\",\"mode\":%d"),
    millis(), millis()%1000,
    SONOFF_L1_MODE_COLORFUL_BREATH
    );

    Serial.print(buffer);
    Serial.write(0x1B);
    Serial.flush();
  }

  // SONOFF_L1_MODE_RGB_GRADIENT
  void setModeRGBGradient() {
    char buffer[140];
    snprintf_P(buffer, sizeof(buffer), PSTR("AT+UPDATE=\"sequence\":\"%d%03d\",\"mode\":%d"),
    millis(), millis()%1000,
    SONOFF_L1_MODE_RGB_GRADIENT
    );

    Serial.print(buffer);
    Serial.write(0x1B);
    Serial.flush();
  }

  // SONOFF_L1_MODE_RGB_PULSE
  void setModeRGBPulse() {
    char buffer[140];
    snprintf_P(buffer, sizeof(buffer), PSTR("AT+UPDATE=\"sequence\":\"%d%03d\",\"mode\":%d"),
    millis(), millis()%1000,
    SONOFF_L1_MODE_RGB_PULSE
    );

    Serial.print(buffer);
    Serial.write(0x1B);
    Serial.flush();
  }

  // SONOFF_L1_MODE_RGB_BREATH
  void setModeRGBBreath() {
    char buffer[140];
    snprintf_P(buffer, sizeof(buffer), PSTR("AT+UPDATE=\"sequence\":\"%d%03d\",\"mode\":%d"),
    millis(), millis()%1000,
    SONOFF_L1_MODE_RGB_BREATH
    );

    Serial.print(buffer);
    Serial.write(0x1B);
    Serial.flush();
  }

  // SONOFF_L1_MODE_RGB_STROBE
  void setModeRGBStrobe() {
    char buffer[140];
    snprintf_P(buffer, sizeof(buffer), PSTR("AT+UPDATE=\"sequence\":\"%d%03d\",\"mode\":%d"),
    millis(), millis()%1000,
    SONOFF_L1_MODE_RGB_STROBE
    );

    Serial.print(buffer);
    Serial.write(0x1B);
    Serial.flush();
  }

  // SONOFF_L1_MODE_SYNC_TO_MUSIC
  void setModeSync(int sensitive = 10, int speed = 50) {
    char buffer[140];
    snprintf_P(buffer, sizeof(buffer), PSTR("AT+UPDATE=\"sequence\":\"%d%03d\",\"mode\":%d,\"sensitive\":%d,\"speed\":%d"),
    millis(), millis()%1000,
    SONOFF_L1_MODE_SYNC_TO_MUSIC,
    sensitive,
    speed
    );

    Serial.print(buffer);
    Serial.write(0x1B);
    Serial.flush();
  }


};

Change the ID to something else That sonoff_l1 ID was just an example

I can't get it to work. If I change the ID, it compiles, but it loses all the LED strip functionality. This is my YAML:

substitutions:
device_name: "led"

esphome:
name: ${device_name}

esp8266:
board: esp8285
restore_from_flash: true

uart:
tx_pin: GPIO1
rx_pin: GPIO3
baud_rate: 19200

external_components:

• source: github://ShonP40/Sonoff-L1
  components: [ sonoff_l1 ]

api:
encryption:
key: "XXX"

ota:

• platform: esphome
  password: "XXX"
• platform: web_server

wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password

ap:
ssid: "LED"
password: !secret ap_password

captive_portal:

logger:
baud_rate: 0

web_server:
port: 80

time:

• platform: homeassistant
  id: homeassistant_time

light:

• platform: sonoff_l1
  name: "Sonoff L1"
  id: led_cocina # Este es el ID actual
  icon: mdi:led-strip-variant
  on_turn_off:
  • lambda: |-
    // Usamos el ID correcto: led_cocina
    auto output = (esphome::sonoff_l1::SonoffL1*)id(led_cocina).get_output();
    output->resetMode();
    effects:
  • lambda:
    name: "Gradient (Fast)"
    lambda: |-
    auto output = (esphome::sonoff_l1::SonoffL1*)id(led_cocina).get_output();
    output->activateModeGradientFast();
  • lambda:
    name: "Gradient (Slow)"
    lambda: |-
    auto output = (esphome::sonoff_l1::SonoffL1*)id(led_cocina).get_output();
    output->activateModeGradientSlow();
  • lambda:
    name: "Cycle (Fast)"
    lambda: |-
    auto output = (esphome::sonoff_l1::SonoffL1*)id(led_cocina).get_output();
    output->activateModeCycleFast();
  • lambda:
    name: "Cycle (Slow)"
    lambda: |-
    auto output = (esphome::sonoff_l1::SonoffL1*)id(led_cocina).get_output();
    output->activateModeCycleSlow();
  • lambda:
    name: "Pulse"
    lambda: |-
    auto output = (esphome::sonoff_l1::SonoffL1*)id(led_cocina).get_output();
    output->activateModePulse();
  • lambda:
    name: "Strobe"
    lambda: |-
    auto output = (esphome::sonoff_l1::SonoffL1*)id(led_cocina).get_output();
    output->activateModeStrobe();
  • lambda:
    name: "Sound Reactive"
    lambda: |-
    auto output = (esphome::sonoff_l1::SonoffL1*)id(led_cocina).get_output();
    output->activateModeSoundReactive(5, 50);

preferences:
flash_write_interval: 5min

Can you create an issue on my repo & provide your config?
Since this is kinda off-topic to this custom component…