RF Bridge Component =================== .. seo:: :description: Instructions for setting up the RF Bridge in ESPHome. :image: rf_bridge.jpg :keywords: RF Bridge The ``RF Bridge`` Component provides the ability to send and receive 433MHz remote codes without hardware hacking the circuit board to bypass the ``efm8bb1`` MCU. This component implements the communcation protocol that the original ``efm8bb1`` firmware implements. The device is connected via the :doc:`UART bus `. The uart bus must be configured at the same speed of the module which is 19200bps. .. warning:: If you are using the :doc:`logger` make sure you disable the uart logging with the ``baud_rate: 0`` option. .. figure:: images/rf_bridge-full.jpg :align: center :width: 60.0% .. code-block:: yaml # Example configuration entry uart: baud_rate: 19200 rf_bridge: on_code_received: - homeassistant.event: event: esphome.rf_code_received data: sync: !lambda 'char buffer [10];return itoa(data.sync,buffer,16);' low: !lambda 'char buffer [10];return itoa(data.low,buffer,16);' high: !lambda 'char buffer [10];return itoa(data.high,buffer,16);' code: !lambda 'char buffer [10];return itoa(data.code,buffer,16);' Configuration variables: ------------------------ - **uart_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the UART hub. - **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation. - **on_code_received** (*Optional*, :ref:`Automation `): An action to be performed when a code is received. See :ref:`rf_bridge-on_code_received`. .. _rf_bridge-on_code_received: ``on_code_received`` Trigger ---------------------------- With this configuration option you can write complex automations whenever a code is received. To use the code, use a :ref:`lambda ` template, the code and the corresponding protocol timings are available inside that lambda under the variables named ``code``, ``sync``, ``high`` and ``low``. .. code-block:: yaml on_code_received: - homeassistant.event: event: esphome.rf_code_received data: sync: !lambda 'char buffer [10];return itoa(data.sync,buffer,16);' low: !lambda 'char buffer [10];return itoa(data.low,buffer,16);' high: !lambda 'char buffer [10];return itoa(data.high,buffer,16);' code: !lambda 'char buffer [10];return itoa(data.code,buffer,16);' .. _rf_bridge-send_code_action: ``rf_bridge.send_code`` Action ------------------------------ Send an RF code using this action in automations. .. code-block:: yaml on_...: then: - rf_bridge.send_code: sync: 0x700 low: 0x800 high: 0x1000 code: 0xABC123 Configuration options: - **sync** (**Required**, int, :ref:`templatable `): RF Sync timing - **low** (**Required**, int, :ref:`templatable `): RF Low timing - **high** (**Required**, int, :ref:`templatable `): RF high timing - **code** (**Required**, int, :ref:`templatable `): RF code - **id** (*Optional*, :ref:`config-id`): Manually specify the ID of the RF Bridge if you have multiple components. .. note:: This action can also be written in :ref:`lambdas `: .. code-block:: cpp id(rf_bridge).send_code(0x700, 0x800, 0x1000, 0xABC123); .. _rf_bridge-send_raw_action: ``rf_bridge.send_raw`` Action ----------------------------- Send a raw command to the onboard EFM8BB1 chip. You can see a list of available commands and format in the `Portisch Wiki `__ This can be used to send raw RF codes in automation's, mainly for protocols that are not supported. If you have *Portisch* firmware installed, these raw codes can be obtained with the help of :ref:`rf_bridge-start_bucket_sniffing_action` .. code-block:: yaml on_...: then: - rf_bridge.send_raw: raw: AAA5070008001000ABC12355 Configuration options: - **raw** (**Required**, string, :ref:`templatable `): RF raw string - **id** (*Optional*, :ref:`config-id`): Manually specify the ID of the RF Bridge if you have multiple components. .. note:: This action can also be written in :ref:`lambdas `: .. code-block:: cpp id(rf_bridge).send_raw("AAA5070008001000ABC12355"); .. _rf_bridge-learn_action: ``rf_bridge.learn`` Action -------------------------- Tell the RF Bridge to learn new protocol timings using this action in automations. A new code with timings will be returned to :ref:`rf_bridge-on_code_received` .. code-block:: yaml on_...: then: - rf_bridge.learn Configuration options: - **id** (*Optional*, :ref:`config-id`): Manually specify the ID of the RF Bridge if you have multiple components. .. note:: This action can also be written in :ref:`lambdas `: .. code-block:: cpp id(rf_bridge).learn(); Portisch firmware ----------------- If you have flashed the secondary MCU with the `Portisch firmware `__, ESPHome is able to receive the extra protocols that can be decoded as well as activate the other modes supported. .. _rf_bridge-on_advanced_code_received: ``on_advanced_code_received`` Trigger ------------------------------------- Similar to :ref:`rf_bridge-on_code_received`, this trigger receives the codes after advanced sniffing is started. To use the code, use a :ref:`lambda ` template, the code and the corresponding protocol and length are available inside that lambda under the variables named ``code``, ``protocol`` and ``length``. .. code-block:: yaml on_advanced_code_received: - homeassistant.event: event: esphome.rf_advanced_code_received data: length: !lambda 'char buffer [10];return itoa(data.length,buffer,16);' protocol: !lambda 'char buffer [10];return itoa(data.protocol,buffer,16);' code: !lambda 'return data.code;' .. _rf_bridge-send_advanced_code_action: ``rf_bridge.send_advanced_code`` Action --------------------------------------- Send an RF code using this action in automations. .. code-block:: yaml on_...: then: - rf_bridge.send_advanced_code: length: 0x04 protocol: 0x01 code: "ABC123" Configuration options: - **length** (**Required**, int, :ref:`templatable `): Length of code plus protocol - **protocol** (**Required**, int, :ref:`templatable `): RF Protocol - **code** (**Required**, string, :ref:`templatable `): RF code - **id** (*Optional*, :ref:`config-id`): Manually specify the ID of the RF Bridge if you have multiple components. .. note:: This action can also be written in :ref:`lambdas `: .. code-block:: cpp id(rf_bridge).send_advanced_code(0x04, 0x01, "ABC123"); .. _rf_bridge-start_advanced_sniffing_action: ``rf_bridge.start_advanced_sniffing`` Action -------------------------------------------- Tell the RF Bridge to listen for the advanced/extra protocols defined in the portisch firmware. The decoded codes with length and protocol will be returned to :ref:`rf_bridge-on_advanced_code_received` .. code-block:: yaml on_...: then: - rf_bridge.start_advanced_sniffing Configuration options: - **id** (*Optional*, :ref:`config-id`): Manually specify the ID of the RF Bridge if you have multiple components. .. note:: This action can also be written in :ref:`lambdas `: .. code-block:: cpp id(rf_bridge).start_advanced_sniffing(); .. _rf_bridge-stop_advanced_sniffing_action: ``rf_bridge.stop_advanced_sniffing`` Action ------------------------------------------- Tell the RF Bridge to stop listening for the advanced/extra protocols defined in the portisch firmware. .. code-block:: yaml on_...: then: - rf_bridge.stop_advanced_sniffing Configuration options: - **id** (*Optional*, :ref:`config-id`): Manually specify the ID of the RF Bridge if you have multiple components. .. note:: This action can also be written in :ref:`lambdas `: .. code-block:: cpp id(rf_bridge).stop_advanced_sniffing(); .. _rf_bridge-start_bucket_sniffing_action: ``rf_bridge.start_bucket_sniffing`` Action ------------------------------------------ Tell the RF Bridge to dump raw sniffing data. Useful for getting codes for unsupported protocols. The raw data will be available in the log and can later be used with :ref:`rf_bridge-send_raw_action` action. .. note:: A conversion from *B1* (received) raw format to *B0* (send) raw command format should be applied. For this, you can use the tool `BitBucket Converter `__ .. note:: There seems to be an overflow problem in Portisch firmware and after a short while, the bucket sniffing stops. You should re-call the action to reset and start sniffing again. .. code-block:: yaml on_...: then: - rf_bridge.start_bucket_sniffing Configuration options: - **id** (*Optional*, :ref:`config-id`): Manually specify the ID of the RF Bridge if you have multiple components. .. note:: This action can also be written in :ref:`lambdas `: .. code-block:: cpp id(rf_bridge).start_bucket_sniffing(); .. _rf_bridge-beep_action: ``rf_bridge.beep`` Action ------------------------------------------- Activate the internal buzzer to make a beep. .. code-block:: yaml on_...: then: - rf_bridge.beep: duration: 100 Configuration options: - **duration** (**Required**, string, :ref:`templatable `): beep duration in milliseconds. - **id** (*Optional*, :ref:`config-id`): Manually specify the ID of the RF Bridge if you have multiple components. .. note:: This action can also be written in :ref:`lambdas `: .. code-block:: cpp id(rf_bridge).beep(100); Getting started with Home Assistant ----------------------------------- The following code will get you up and running with a configuration sending codes to Home Assistant as events and will also setup a service so you can send codes with your RF Bridge. .. code-block:: yaml api: services: - service: send_rf_code variables: sync: int low: int high: int code: int then: - rf_bridge.send_code: sync: !lambda 'return sync;' low: !lambda 'return low;' high: !lambda 'return high;' code: !lambda 'return code;' - service: learn then: - rf_bridge.learn uart: tx_pin: 1 rx_pin: 3 baud_rate: 19200 logger: baud_rate: 0 rf_bridge: on_code_received: then: - homeassistant.event: event: esphome.rf_code_received data: sync: !lambda 'char buffer [10];return itoa(data.sync,buffer,16);' low: !lambda 'char buffer [10];return itoa(data.low,buffer,16);' high: !lambda 'char buffer [10];return itoa(data.high,buffer,16);' code: !lambda 'char buffer [10];return itoa(data.code,buffer,16);' Now your latest received code will be in an event. To trigger the automation from Home Assistant you can invoke the service with this code: .. code-block:: yaml automation: # ... action: - service: esphome.rf_bridge_send_rf_code data: sync: 0x700 low: 0x800 high: 0x1000 code: 0xABC123 See Also -------- - :apiref:`rf_bridge/rf_bridge.h` - :doc:`/components/uart` - :ghedit:`Edit`