169 lines
4.9 KiB
ReStructuredText
169 lines
4.9 KiB
ReStructuredText
Sim800L Component
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=================
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.. seo::
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:description: Instructions for setting up the SIM800L GSM module to send and receive SMS in ESPHome.
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:image: sim800l.jpg
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:keywords: SMS SIM800L GSM
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The ``SIM800L`` Component provides the ability to send and receive SMS text messages. The device must be
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connected via a :doc:`UART bus </components/uart>` supporting both receiving and transmitting line.
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The UART bus must be configured at the same speed of the module which is by default 9600bps.
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The required connection wires are ``+VCC``, ``GND``, ``RX`` and ``TX``.
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.. warning::
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If you are using the :doc:`logger` make sure you are not using the same pins for ``TX`` and ``RX`` or
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otherwise disable the UART logging with the ``baud_rate: 0`` option.
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.. note::
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This module requires a power supply between 3.8V and 4.2V that can handle current spikes up
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to 2 amps, it will not work by powering from the same 3.3V power source of the ESP. However you can
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connect ``TX`` and ``RX`` lines directly without any level shifter.
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.. figure:: images/sim800l-full.jpg
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:align: center
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:width: 60.0%
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.. code-block:: yaml
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# Example configuration entry
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uart:
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baud_rate: 9600
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tx_pin: TX
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rx_pin: RX
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sim800l:
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on_sms_received:
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- logger.log:
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format: "Received '%s' from %s"
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args: [ 'message.c_str()', 'sender.c_str()' ]
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logger:
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baud_rate: 0 # disable uart logger on esp 8266
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Configuration variables:
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------------------------
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- **uart_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the UART hub.
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
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- **on_sms_received** (*Optional*, :ref:`Automation <automation>`): An action to be
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performed when an SMS is received. See :ref:`sim800l-on_sms_received`.
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.. _sim800l-on_sms_received:
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``on_sms_received`` Trigger
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---------------------------
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With this configuration option you can write complex automations whenever an SMS message
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is received. To use the message content, use a :ref:`lambda <config-lambda>`
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template, the message content and the sender phone number are available inside that lambda
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under the variables named ``message`` and ``sender`` respectively.
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.. code-block:: yaml
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on_sms_received:
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- lambda: |-
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id(sms_sender).publish_state(sender);
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id(sms_message).publish_state(message);
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.. _sim800l-send_sms_action:
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``sim800l.send_sms`` Action
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---------------------------
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Send a SMS message to a phone recipient using this action in automations.
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.. code-block:: yaml
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on_...:
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then:
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- sim800l.send_sms:
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recipient: '+15551234567'
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message: Hello there
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# Templated:
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- sim800l.send_sms:
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recipient: !lambda |-
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if (id(reed_switch).state) return "+15551234567";
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else return "15551234568";
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message: !lambda |-
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return id(reed_switch).state ? "Door is now OPEN" : "Hey door just CLOSED";
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Configuration options:
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- **recipient** (***Required**, string, :ref:`templatable <config-templatable>`): The message recipient.
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number.
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- **message** (**Required**, string, :ref:`templatable <config-templatable>`): The message content.
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID of the SIM800L if you have multiple components.
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.. note::
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This action can also be written in :ref:`lambdas <config-lambda>`:
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.. code-block:: cpp
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id(sim800l1).send_sms("+15551234567", "The message content");
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Getting started with Home Assistant
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-----------------------------------
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The following code will get you up and running with a configuration updating received messages
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on Home Assistant and will also setup a service so you can send messages with your SIM800L.
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.. code-block:: yaml
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api:
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services:
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- service: send_sms
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variables:
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recipient: string
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message: string
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then:
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- sim800l.send_sms:
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recipient: !lambda 'return recipient;'
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message: !lambda 'return message;'
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text_sensor:
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- platform: template
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id: sms_sender
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name: "Sms Sender"
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- platform: template
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id: sms_message
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name: "Sms Message"
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uart:
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baud_rate: 9600
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tx_pin: TX
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rx_pin: RX
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sim800l:
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on_sms_received:
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- lambda: |-
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id(sms_sender).publish_state(sender);
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id(sms_message).publish_state(message);
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Now your latest received SMS and sender number will be displayed by the text sensors.
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To trigger the automation from Home Assistant you can invoke the service with this code:
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.. code-block:: yaml
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automation:
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# ...
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action:
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- service: esphome.livingroom_send_sms
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data:
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recipient: "+15551234567"
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message: "Hello World!"
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See Also
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--------
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- :apiref:`sim800l/sim800l.h`
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- :doc:`/components/uart`
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- :ghedit:`Edit`
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