Add sensor

components/empty_i2c_sensor/empty_i2c_sensor.cpp

@@ -17,6 +17,7 @@ void EmptyI2CSensor::update(){
   uint8_t data = 10;
   this->read_register(0x0, &data, (size_t)0x1);
   ESP_LOGI(TAG, "sensor output: %d", data);
+  this->publish_state((float)data);
 
 }