devices.esphome.io

FEIT OM100/RGBW/CA/AG

FEIT OM100/RGBW/CA/AG

Device Type: light
Electrical Standard: us
Board: esp8266

OM 100 Feit Electric (Lowe's)

This is the 100W Bulb from FEIT Electric. It is sold at Lowe's and it is completely different from its 60W counterpart the OM60. There is a need to use a CustomLight to make the white balance work correctly and to prevent the white and color leds to turn on at the same time causing the bulb to overheat:

esphome:
  name: ${device_name}
  platform: ESP8266
  board: esp01_1m
  includes:
    - better_rgbw_output.h


output:
  - platform: esp8266_pwm
    id: output_red
    pin: GPIO04
  - platform: esp8266_pwm
    id: output_green
    pin: GPIO12
  - platform: esp8266_pwm
    id: output_blue
    pin: GPIO14
  - platform: esp8266_pwm
    id: output_cold_white
    pin: GPIO13
  - platform: esp8266_pwm
    id: output_warm_white
    pin: GPIO05


light:
  - platform: custom
    lambda: |-
      auto light_out = new BetterRGBWLightOutput(id(output_red), id(output_green), id(output_blue), id(output_cold_white), id(output_warm_white));
      App.register_component(light_out);
      return {light_out};
    lights:
      - name: ${friendly_name}
        id: ${device_name}

Custom Light Header file

Here is the c code for the header file. The code is not mine. I just made some modifications for this bulb. This file should be named better_rgbw_output.h and be saved in the esphome directory

/*  A Better RGBW(W) Output


    Based on/inspired by user *envy* at https://github.com/esphome/feature-requests/issues/212#issuecomment-498036079


    Why?:


        I have RGBWW (RGB + Cool-White + Warm-White) LED bulbs.  After finding the correct PWM GPIOs to control each channel
        and setting them up with esphome and HomeAssistant, I noticed the controls in HA were weird.


        HA presented a brightness slider, colour temperature slider, 'white value' slider and an RGB picker.


        The 'white value' and 'brightness' only worked to brighten/dim the CW/WW and RGB LEDs respectively.  I wanted a single
        'brightness' slider that worked no matter if the bulb was showing white or colour.


    How?:


        This output checks what the desired state is.  If the RGB levels are equal, then the code turns off the RGB
        LEDs and turns on the Cool and Warm LEDs.  These levels set the white temperature, but not the brightness.


        So, we also grab the brightness setting and multiply the CW/WW levels by it to get final levels for CW/WW.


        If the desired RGB levels differ from eachother, then we know we want a coloured light.  So, the code
        turns off the CW/WW LEDs and sets the RGB levels as desired.  We don't do a brightness multiplication here,
        since that already seems to have been applied.






*/




#pragma once


#include "esphome.h"


class BetterRGBWLightOutput : public Component, public LightOutput {
    public:
    BetterRGBWLightOutput(FloatOutput *red, FloatOutput *green, FloatOutput *blue, FloatOutput *cold_white, FloatOutput *warm_white)
    {
        red_ = red;
        green_ = green;
        blue_ = blue;
        cold_white_ = cold_white;
        warm_white_ = warm_white;
    }


    LightTraits get_traits() override {
        auto traits = LightTraits();
        traits.set_supports_brightness(true);
        traits.set_supports_rgb(true);
        traits.set_supports_color_temperature(true);
        traits.set_max_mireds(370);
        traits.set_min_mireds(166);
        return traits;
    }


    void write_state(LightState *state) override {
        float red, green, blue, cold_white, warm_white, brightness;
        float l_balance;
        state->current_values_as_rgbww(&red, &green, &blue, &cold_white, &warm_white);


        state->current_values_as_brightness(&brightness);


        if (red == green && red == blue)
        {
            this->red_->set_level(0);
            this->green_->set_level(0);
            this->blue_->set_level(0);


            if (cold_white >= 1.0){
                l_balance = cold_white - warm_white;
            }
            else {
                l_balance = cold_white;
            }


            this->cold_white_->set_level(l_balance * brightness);
            this->warm_white_->set_level(1 * brightness);
        }
        else
        {
            this->red_->set_level(red);
            this->green_->set_level(green);
            this->blue_->set_level(blue);
            this->cold_white_->set_level(0);
            this->warm_white_->set_level(0);
        }
    }


    protected:
    FloatOutput *red_;
    FloatOutput *green_;
    FloatOutput *blue_;
    FloatOutput *cold_white_;
    FloatOutput *warm_white_;
};
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