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99 lines
2.8 KiB
ReStructuredText
99 lines
2.8 KiB
ReStructuredText
Debug Component
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===============
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.. seo::
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:description: Instructions for setting up the debug component in ESPHome
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:image: bug-report.svg
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The ``debug`` component can be used to debug problems with ESPHome. At startup, it prints
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a bunch of useful information like reset reason, free heap size, ESPHome version and so on.
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It also allows you to get the same information as a text sensor, and to monitor the state of the
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ESP heap memory (free space, maximum free block size and fragmentation level) and the main-loop timing.
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.. figure:: images/debug.png
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:align: center
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Example debug component output.
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.. code-block:: yaml
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# Example configuration entry
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debug:
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update_interval: 5s
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text_sensor:
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- platform: debug
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device:
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name: "Device Info"
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reset_reason:
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name: "Reset Reason"
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sensor:
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- platform: debug
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free:
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name: "Heap Free"
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fragmentation:
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name: "Heap Fragmentation"
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block:
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name: "Heap Max Block"
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loop_time:
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name: "Loop Time"
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psram:
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name: "Free PSRAM"
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# Logger must be at least debug (default)
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logger:
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level: debug
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Text Sensor
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------------
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Configuration variables:
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- **device** (*Optional*): Reports the following device information:
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- ESPHome Version
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- Free heap size at startup
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- Flash chip size, speed and mode
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- ESP32:
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- Chip model, cores, revision
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- Chip features (BLE / BT / WiFi_BGN / EMB_FLASH / EMB_PSRAM / ...)
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- ESP-IDF version
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- EFuse MAC
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- Reset reason
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- Wakeup reason
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- ESP8266:
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- Chip id, frequency
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- Flash id
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- SDK, Core & Boot versions
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- Reset reason & information
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Accepts all options from :ref:`Text Sensor <config-text_sensor>`.
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- **reset_reason** (*Optional*): Reports the last reboot reason in a human-readable form. Accepts all options from :ref:`Text Sensor <config-text_sensor>`.
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Sensor
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-------
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Configuration variables:
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- **free** (*Optional*): Reports the free heap size in bytes. All options from :ref:`Sensor <config-sensor>`.
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- **fragmentation** (*Optional*): Reports the fragmentation metric of the heap
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(0% is clean, more than ~50% is not harmless). Only available on ESP8266 with Arduino 2.5.2+.
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All options from :ref:`Sensor <config-sensor>`.
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- **block** (*Optional*): Reports the largest contiguous free RAM block on the heap in bytes. All options from :ref:`Sensor <config-sensor>`.
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- **loop_time** (*Optional*): Reports the longest time between successive iterations of the main loop. All options from :ref:`Sensor <config-sensor>`.
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- **psram** (*Optional*): Reports the free PSRAM in bytes. Only available on ESP32. All options from :ref:`Sensor <config-sensor>`.
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See Also
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--------
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- :ref:`sensor-filters`
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- :doc:`logger`
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- :apiref:`debug/debug_component.h`
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- :ghedit:`Edit`
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