rename folder

components/empty_light/README.md

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+```yaml
+# example configuration:
+
+light:
+  - platform: empty_light
+    name: Empty light
+    output: pwm_output
+
+output:
+  - platform: esp8266_pwm
+    pin: D1
+    frequency: 1000 Hz
+    id: pwm_output
+```

components/empty_light/empty_light.cpp

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+#include "esphome/core/log.h"
+#include "empty_light.h"
+
+namespace esphome {
+namespace empty_light {
+
+static const char *TAG = "empty_light.light";
+
+void EmptyLightOutput::setup() {
+   
+}
+
+light::LightTraits EmptyLightOutput::get_traits() {
+    auto traits = light::LightTraits();
+    traits.set_supports_brightness(true);
+    traits.set_supports_rgb(false);
+    traits.set_supports_rgb_white_value(false);
+    traits.set_supports_color_temperature(false);
+
+    return traits;
+}
+
+void EmptyLightOutput::write_state(light::LightState *state) {
+
+}
+
+void EmptyLightOutput::dump_config(){
+    ESP_LOGCONFIG(TAG, "Empty custom light");
+}
+
+} //namespace empty_light
+} //namespace esphome

components/empty_light/empty_light.h

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+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/output/float_output.h"
+#include "esphome/components/light/light_output.h"
+
+namespace esphome {
+namespace empty_light {
+
+class EmptyLightOutput : public light::LightOutput, public Component {
+ public:
+  void setup() override;
+  light::LightTraits get_traits() override;
+  void set_output(output::FloatOutput *output) { output_ = output; }
+  void write_state(light::LightState *state) override;
+  void dump_config() override;
+ 
+ protected:
+  output::FloatOutput *output_;
+};
+
+} //namespace empty_light
+} //namespace esphome

components/empty_light/light.py

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+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import light, output
+from esphome.const import CONF_OUTPUT_ID, CONF_OUTPUT
+
+empty_light_ns = cg.esphome_ns.namespace('empty_light')
+EmptyLightOutput = empty_light_ns.class_('EmptyLightOutput', light.LightOutput)
+
+CONFIG_SCHEMA = light.BRIGHTNESS_ONLY_LIGHT_SCHEMA.extend({
+    cv.GenerateID(CONF_OUTPUT_ID): cv.declare_id(EmptyLightOutput),
+    cv.Required(CONF_OUTPUT): cv.use_id(output.FloatOutput)
+})
+
+def to_code(config):
+    var = cg.new_Pvariable(config[CONF_OUTPUT_ID])
+    yield light.register_light(var, config)
+
+    out = yield cg.get_variable(config[CONF_OUTPUT])
+    cg.add(var.set_output(out))