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();
  }


};

I'm having trouble compiling it with

config/l1-strip.yaml: In lambda function:
config/l1-strip.yaml:27:28: error: expected type-specifier before 'SonoffL1'
config/l1-strip.yaml:28:24: error: could not convert '{light_out}' from '<brace-enclosed initializer list>' to 'std::vector<esphome::light::LightOutput*>'
config/l1-strip.yaml: In lambda function:
config/l1-strip.yaml:36:28: error: expected type-specifier before 'SonoffL1'
config/l1-strip.yaml: In lambda function:
config/l1-strip.yaml:41:28: error: expected type-specifier before 'SonoffL1'
config/l1-strip.yaml: In lambda function:
config/l1-strip.yaml:46:28: error: expected type-specifier before 'SonoffL1'
config/l1-strip.yaml: In lambda function:
config/l1-strip.yaml:51:28: error: expected type-specifier before 'SonoffL1'
Compiling .pioenvs/l1-strip/lib4d9/ESP8266WiFi/ESP8266WiFiAP.cpp.o
config/l1-strip.yaml: In lambda function:
config/l1-strip.yaml:56:28: error: expected type-specifier before 'SonoffL1'
config/l1-strip.yaml: In lambda function:
config/l1-strip.yaml:61:28: error: expected type-specifier before 'SonoffL1'
config/l1-strip.yaml: In lambda function:
config/l1-strip.yaml:66:28: error: expected type-specifier before 'SonoffL1'
config/l1-strip.yaml: In lambda function:
config/l1-strip.yaml:29:3: warning: control reaches end of non-void function [-Wreturn-type]
Compiling .pioenvs/l1-strip/lib4d9/ESP8266WiFi/ESP8266WiFiGeneric.cpp.o
*** [.pioenvs/l1-strip/src/main.cpp.o] Error 1

Any ideas?

What version of ESPHome are you running? It's possible something broke in a recent update that I'm not using yet.

1.19.4.

Not a problem for me to switch back to one you've used, compile and flash. Can you tell me what's the version you've used (more or less)

Ok, so, downgrading did not help.

the problem was that sonoff_l1.h file that was copied to led_strip_1/src/sonoff_l1.h by esphome/platformio was empty. Not sure why, but I've filled it with correct contents and it worked.

Hi Emory,
As of ESPHome Current version 2021.8.0 of today, the following errors are being reported when attempting to update devices with this version of ESPHome:

In file included from src/main.cpp:25:0:
src/sonoff_l1.h: In member function 'virtual esphome::light::LightTraits SonoffL1::get_traits()':
src/sonoff_l1.h:29:12: error: 'class esphome::light::LightTraits' has no member named 'set_supports_brightness'
traits.set_supports_brightness(true);
^
src/sonoff_l1.h:30:12: error: 'class esphome::light::LightTraits' has no member named 'set_supports_rgb'
traits.set_supports_rgb(true);
^
src/sonoff_l1.h:31:12: error: 'class esphome::light::LightTraits' has no member named 'set_supports_rgb_white_value'
traits.set_supports_rgb_white_value(false);
^
src/sonoff_l1.h:32:12: error: 'class esphome::light::LightTraits' has no member named 'set_supports_color_temperature'
traits.set_supports_color_temperature(false);
^
Compiling /data/led_strip_1/.pioenvs/led_strip_1/lib4d9/ESP8266WiFi/WiFiServerSecureBearSSL.cpp.o
*** [/data/led_strip_1/.pioenvs/led_strip_1/src/main.cpp.o] Error 1
========================= [FAILED] Took 18.90 seconds =========================

This website shows what the issue could be ...
https://esphome.io/api/classesphome_1_1light_1_1_light_traits.html

Will appreciate you looking into this when your time permits.
Many thanks. Keep well and be safe.
Rgds
sirronb

Hey Emory,
Found the issue with the help from @JeffResc who did the changes for the D1-Dimmer.
This needs to be changed in the "sonoff_l1.h" code above...

LightTraits get_traits() override {
// return the traits this light supports
auto traits = LightTraits();
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;

to this ...

LightTraits get_traits() override {
// return the traits this light supports
auto traits = LightTraits();
traits.set_supported_color_modes({light::ColorMode::BRIGHTNESS});
return traits;
}

Works perfectly from here onward.

Thx and go well and be safe.
Best rgds
Sirronb

@sirronb thanks so much for looking into that. I haven't updated yet, so I'll incorporate your changes if they're backwards compatible. It might be time to convert this to a proper repo, especially if there need to be multiple versions of the config.

@emorydunn, Thanks for your response. I'd just like to add that the program compiled perfectly in ESPHome, but after uploading (ota) and testing it out on the L1, there was no response. So something has changed causing the sonoff L1 hardware not to respond as would be expected.
Hence, a new approach will have to be looked into.

@sirronb

From the deprecated functions, it seems to be an RGB light. Maybe give the code below a try?

I ran into a similar problem with my (entirely different brand of) lights. An incorrect colour mode seemed to not allow my light to turn on at all. The other possible values are here: https://esphome.io/api/namespaceesphome_1_1light.html#ae15e8fc701ad0efd46c3dfeefa408c7a

LightTraits get_traits() override {
// return the traits this light supports
auto traits = LightTraits();
traits.set_supported_color_modes({light::ColorMode::RGB});
return traits;
}

I finally got around to updating ESPHome and testing this out. Looks like @kancelott's change does the trick.

Thanks guys! It worked perfect for me too!

Perfectly did the trick, thanks @kancelott and @sirronb !

Hey guys, seems since the update I lost the color picker? Any idea why this happened?

Hello! Does it work without server (HA) after compiling?

@Kentrp It should, although I'm not sure how useful a device running ESPHome will be without Home Assistant.

Hello, it seems that esphome 2023.7.0 broke this component for me. It looks like sending commands to the Nuvotron fails:

AT+UPDATE="sequence":"588226226","switch":"off","light_type":1,"colorR":0,"colorG":0,"colorB":0,"bright":100,"mode":1
[11:33:45][W][component:204]: Component light took a long time for an operation (0.22 s).
[11:33:45][W][component:205]: Components should block for at most 20-30ms.

Anyone else experiencing the same issue with 2023.7.0?

Hello, it seems that esphome 2023.7.0 broke this component for me. It looks like sending commands to the Nuvotron fails:

AT+UPDATE="sequence":"588226226","switch":"off","light_type":1,"colorR":0,"colorG":0,"colorB":0,"bright":100,"mode":1
[11:33:45][W][component:204]: Component light took a long time for an operation (0.22 s).
[11:33:45][W][component:205]: Components should block for at most 20-30ms.

Anyone else experiencing the same issue with 2023.7.0?

The same for me.

Maybe esphome/issues#4717 is related? But I get the impression that other components show the "too a long time" warning but still work, while this one breaks.

A git bisect between 2023.6.5 and 2023.7 would be very useful to find the exact commit that breaks the component. Don't know whether I have the time to do it though.

I found the issue, I had logger enabled for wifi logging, which up to now did not seem to be an issue, but maybe in the latest version logger tries to set the baud rate or something. I fixed it by setting baud_rate: 0 which disables serial logging.

logger:
  esp8266_store_log_strings_in_flash: false
  baud_rate: 0

With this change the controller actually became more responsive than before. Maybe with logger enabled the Nuvotron was being slowed down by debug messages sent to it?

Note also that the " took a long time for an operation" warning still appears, probably it takes too long to send the command over serial, but likely it's not an issue. In esphome/issues#4717 it is mentioned that components should use callbacks to avoid the warning.