text: import esphome.codegen as cg
  import esphome.config_validation as cv
  from esphome import automation
  from esphome.const import (
      CONF_ID,
      CONF_TRIGGER_ID,
  )
  from esphome.components import uart
  
  DEPENDENCIES = ["uart"]
  CODEOWNERS = ["@glmnet"]
  MULTI_CONF = True
  
  sim800l_ns = cg.esphome_ns.namespace("sim800l")
  Sim800LComponent = sim800l_ns.class_("Sim800LComponent", cg.Component)
  
  Sim800LReceivedMessageTrigger = sim800l_ns.class_(
      "Sim800LReceivedMessageTrigger",
      automation.Trigger.template(cg.std_string, cg.std_string),
  )
  
  # Actions
  Sim800LSendSmsAction = sim800l_ns.class_("Sim800LSendSmsAction", automation.Action)
  Sim800LDialAction = sim800l_ns.class_("Sim800LDialAction", automation.Action)
  
  CONF_SIM800L_ID = "sim800l_id"
  CONF_ON_SMS_RECEIVED = "on_sms_received"
  CONF_RECIPIENT = "recipient"
  CONF_MESSAGE = "message"
  
  CONFIG_SCHEMA = cv.All(
      cv.Schema(
          {
              cv.GenerateID(): cv.declare_id(Sim800LComponent),
              cv.Optional(CONF_ON_SMS_RECEIVED): automation.validate_automation(
                  {
                      cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(
                          Sim800LReceivedMessageTrigger
                      ),
                  }
              ),
          }
      )
      .extend(cv.polling_component_schema("5s"))
      .extend(uart.UART_DEVICE_SCHEMA)
  )
  FINAL_VALIDATE_SCHEMA = uart.final_validate_device_schema(
      "sim800l", require_tx=True, require_rx=True
  )
  
  
  async def to_code(config):
      var = cg.new_Pvariable(config[CONF_ID])
      await cg.register_component(var, config)
      await uart.register_uart_device(var, config)
  
      for conf in config.get(CONF_ON_SMS_RECEIVED, []):
          trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
          await automation.build_automation(
              trigger, [(cg.std_string, "message"), (cg.std_string, "sender")], conf
          )
  
  
  SIM800L_SEND_SMS_SCHEMA = cv.Schema(
      {
          cv.GenerateID(): cv.use_id(Sim800LComponent),
          cv.Required(CONF_RECIPIENT): cv.templatable(cv.string_strict),
          cv.Required(CONF_MESSAGE): cv.templatable(cv.string),
      }
  )
  
  
  @automation.register_action(
      "sim800l.send_sms", Sim800LSendSmsAction, SIM800L_SEND_SMS_SCHEMA
  )
  async def sim800l_send_sms_to_code(config, action_id, template_arg, args):
      paren = await cg.get_variable(config[CONF_ID])
      var = cg.new_Pvariable(action_id, template_arg, paren)
      template_ = await cg.templatable(config[CONF_RECIPIENT], args, cg.std_string)
      cg.add(var.set_recipient(template_))
      template_ = await cg.templatable(config[CONF_MESSAGE], args, cg.std_string)
      cg.add(var.set_message(template_))
      return var
  
  
  SIM800L_DIAL_SCHEMA = cv.Schema(
      {
          cv.GenerateID(): cv.use_id(Sim800LComponent),
          cv.Required(CONF_RECIPIENT): cv.templatable(cv.string_strict),
      }
  )
  
  
  @automation.register_action("sim800l.dial", Sim800LDialAction, SIM800L_DIAL_SCHEMA)
  async def sim800l_dial_to_code(config, action_id, template_arg, args):
      paren = await cg.get_variable(config[CONF_ID])
      var = cg.new_Pvariable(action_id, template_arg, paren)
      template_ = await cg.templatable(config[CONF_RECIPIENT], args, cg.std_string)
      cg.add(var.set_recipient(template_))
      return var
  