Esphome retain. 11. won’t update wirelessly and sends status state off then on back and forth. Its value can be of any time unit like seconds, minutes or hours, and looks like this: Logger Component The logger component automatically logs all log messages through the serial port and through MQTT topics (if there is an MQTT client in the configuration). So, HA published to MQTT and even if esphome is not connected, then the message is dropped by the broker. My version is 2025. And worst of all, it keeps powering off after 15 minutes or so, everyone in the household is complaining and I can’t even start to fix my netwokr… esphome: name: esph-toilet-3gang friendly_name: Toilet Jul 25, 2021 · Does anyone know of a heartbeat capability in ESPhome? I am familiar with the binary_sensor of the “status” platform binary_sensor: - platform: status name: "${hostname}_status" But I’d like to get an indicator that shows if my code (the loop) that runs on the board is functioning…something like an input boolean that is turned on and off every x-seconds. If you want to change the actual state of the switch, you need to call turn_on(), turn_off() or toggle(). HA will say unavailable because of the cycling. Am using manual_ip dhcp mac is locked down. 3. None of the examples on that page tells me which platform to use…? All examples say: number: - platform: template But then I get the number template which is not what I am looking for. Each of them is a platform of the sensor domain and each sensor has several base configuration options. publish May 8, 2024 · Hi there, i’m using esphome with home assistant for a while now. Most importantly, this is the section of the configuration where you specify the name of the node. Is there a way to make HA display the last Nov 26, 2021 · Look at the retain flag. There are several use cases Jun 28, 2018 · If the messages from HASS are set to retain, shouldn't esphomelib pick up the desired states when it connects and subscribes to the topics, and set them to the appropriate state automatically? Dec 1, 2020 · My understanding is that retain delivers the very last topic posted message to any (past or new) subscriber. However, you must leave a running window to capture logs over time. Have fun exploring! Dec 14, 2024 · I am trying to put espHome onto an arduino nano; it is connected to my computer (not the HAOS computer). yaml, but it did not have any effect. There are several use cases Logging Best Practices Overview Logging is an essential part of ESPHome for both debugging and monitoring. Fundamentally, there are these types of displays: Character displays like 7-Segment displays or LCD displays. I have mqtt esphome sensor that is in deep sleep for 4 hours. How can I display the latest sensor values received by my ESP32 (via ESPhome) when it is in deep sleep mode? May 18, 2020 · I would really like a simple way (as a configuration parameter for the native api in ESPHome?) to make ESPHome automatically use the last value it reported to Home Assistant after a reboot as a new base value. Blink quickly Status LED Light The status_led light platform allows to share a single LED for indicating the status of the device (when on error/warning state) or as binary light (when on OK state). Problem - Whenever Wemos goes to deep sleep i get “NaN” or “Unavailable” for plant sensor and i would like to get “last known value” instead, so not to wait few hours to read the data. That’s normal, but based on logs, I can’t quite seem to tell what is the issue. Using retain with a switch 'ON' payload will ask esp32 to open the cover every time it wakes up (until I clear the retained message) This is not what I need. I understand you suggestion to retain the mqtt message but how to tell the esphome to retain? Apr 16, 2025 · Extend Your Bluetooth Range with ESPHome — No Hubs Required If you're using Home Assistant and struggling with short-range Bluetooth, connection drops, or Zigbee device interference, you need this setup. I’m using a GPIO to power a DHT temp sensor. This sensor is based on ESPhome. archive) folders in the config dir and that fixed it. h> void set_discovery_info (std::string &&prefix, MQTTDiscoveryUniqueIdGenerator unique_id_generator, MQTTDiscoveryObjectIdGenerator object_id_generator, bool retain, bool discover_ip, bool clean=false) Keep in mind that this does not change the actual state of the switch. May 14, 2021 · I am using an esp32 running esphome as a control panel for home assistant. This is useful for devices with only one LED available. Related issue (if applicable): N/A Pull request in esphome with YAML changes (if applicable): esphome/esphome#1056 Dec 13, 2022 · At the present, I dont think that it is possible to retain the value of such a sensor without an update from the device but there are some work arounds either using Input Number integration or using nodered. I’ll keep searching the documentation. Currently, only the ESPHome tool, Home Assistant and ioBroker use this native API. during the downtime the states become 'unavailable' so i think that's were it fails. They will come back after esphome::mqtt::MQTTComponent Class Reference abstract MQTTComponent is the base class for all components that interact with MQTT to expose certain functionality or data from actuators or sensors to clients. Graphical displays with fully addressable pixels, like E-Paper, OLED or TFT displays Jul 14, 2023 · Getting Started with ESPHome: Your Beginner's Guide Have you ever dreamt of creating your own smart home devices but felt overwhelmed by the complex coding and electronic jargon? Don't worry, you're not alone. Learn how to maximize your IoT device's battery life and create a more sustainable smart home environment. To use this feature you first have to globally enable the ASYNC_TCP_SSL_ENABLED define flag. io port: 1883 username: !secret mqtt_username discovery: true # disable entity discovery discover_ip: true # enable device discovery discovery_retain: true #retain discovery messages discovery_unique_id_generator: mac #Use Mac address to generate unique entity Ids on_message: topic Display Component The display component houses ESPHome’s powerful rendering and display engine. The device sends its data via WiFi Component This core ESPHome component sets up WiFi connections to access points for you. So I wanted to fix this but somehow I am doing something wrong. With ESPHome and ESP32, you can create custom IoT devices tailored to your needs. I use Node Red and log the actions from each message. So I tend to avoid retain like the plague and May 9, 2022 · I’d like to be able to set a variable / number on the web_server webpage, have it persist during reboots, and use that number in some calculations. 0. Calling this method will also automatically disable all non-ssl connections. turn_on: backlt wifi: ssid: "ssid" password: "pass Dec 12, 2023 · The problem I am running ESPHome 2023. 09. Note that I had a power outage once before and had no issues with devices coming back online (see note at end Feb 1, 2025 · Changelog for ESPHome 2025. Native API Component The ESPHome native API is used to communicate with clients directly, with a highly-optimized network protocol. 3 and humidity readings are back. discovery_retain (Optional, boolean): Whether to retain MQTT discovery messages so that entities are added automatically on Home Assistant restart. Feb 16, 2024 · Hi, I have some waveshare epaper ESP32 driven devices. For example, if you are using a GPIO Switch, calling publish_state() will not change the GPIO pin level. I used a wemos d1 mini an an inductive sensor on my meter and it works quite well. Have fun exploring! Oct 9, 2025 · Just to chime in here: running esphome via docker and had the exact same issue, never dared to do that before but after a backup just went ahead and deleted the . Base Sensor Configuration All sensors in ESPHome have a name and some other optional configuration options. I’m wondering if someone knows Lambda well enough to add a mqtt. You can also use a binary Output Component. 🙁 Anybody have any ideas? 12. It provides the combined functionality of status_led component and a binary light component over a single Oct 3, 2024 · An MQTT message broker is the standard way to transfer information between different IOT devices. . requested disconnected then connected successfully back and forth. A number entity is like a sensor that can read a value from a device, but is useful when that value can be set by the user/frontend. Deep sleep is configure to make the nodeMCU is run mod during 1min, and in deep sleep during 15min: deep_sleep: run_duration: 60s sleep_duration: 15min So, on_boot, I put the GPIO in high state. They ALL give me the errors @TheAznShumai mentioned here. I simply need subscriber to be delivered every messages he missed while being asleep, that is, having persistence enabled broker Dec 22, 2021 · Expose configuration parameters for the native API to allow adjustment to one or more of: connection timeout keepalive timeout message retries Rationale: Being able to tune the API’s tolerance for less-than-ideal network conditions would permit users to retain the advantages of Native API (even at the cost of a few retry-delays) rather than having to fall back to MQTT’s TCP transport-layer Sep 1, 2025 · ESPHome keep crash on esp8266 D1 Mini 4M only if I have external_components #10513 New issue Open frixo3190 Dec 6, 2024 · I’m having some network issues, and noticed that my wall switches running ESPHome have a blinking light. That works fine, but I have a problem with status of device after reflash firmware, reboot or repower. Warnings are active when for example reading a sensor value fails temporarily, the WiFi/MQTT connections are disrupted, or if the native API component is included but no client is connected. An alternative is to use Jun 9, 2024 · Programmed a rollershutter via cover. It’s a fun project, but I’ve run into a lot of bugs on the system whenever it goes down… and I expect it to go down fairly regularly. This component can restore its state on reboot/reset if configured to do so. 0 then: - light. 0 - 19th April 2023 Jan 13, 2025 · In ESPHome, we only have the deep sleep component - a feature request for light deep sleep is still open. 2. This isn’t just a workaround — it's the 2025-ready, fully local solution for rock-solid BLE range using a cheap ESP32… Aug 4, 2023 · Discover the ease of Over-the-Air (OTA) updates with ESPHome in our comprehensive guide. net Difference being, I’d like it to be set in either the web page, or alternatively over MQTT. but eventually only use 1 program it links the 2 esphome files the switchs binary sensors etc to 1 sensor in the mqtt… i cant seem to purge things as it keeps detecting mqtt when i dont have any thing coming in i dont have the esp device add to HA its not even plugged in yet it keep adding… how do i purge Feb 19, 2025 · Explore advanced ESPHome techniques for DIY smart home enthusiasts! Learn to use lambda functions, script components, Home Assistant integration, and ESP-NOW protocols. Then as t within luck would have it, within 12 hours of leaving home for a few days power was lost for a short period. That why I wrote “using the device only as a switch”. More #include <mqtt_component. Powered by a worldwide community of tinkerers and DIY enthusiasts. You need to have a network configuration (either Wifi or Ethernet) or ESPHome will fail in the config validation stage. Understanding Logger Overhead Network Impact Each ESP_LOG* call in ESPHome results in Feb 27, 2025 · on top of it cuz ive used the same esp32 device on 2 different esp program,s i wrote. Defaults to true. This ist my esphome config Having trouble setting on_boot light_on no matter what action. (Except devices running stock sonoff devices). They use MQTT for communication. I’ve tried to do my homework, and the closest I could find was probably this guide: ESPHome variables from Home Assistant - Schinckel. I have multiple devices and rarely have a window open to watch when something unusual happens. I have used different USB ports on the computer, I reset the device but I can’t get Oct 9, 2025 · Just to chime in here: running esphome via docker and had the exact same issue, never dared to do that before but after a backup just went ahead and deleted the . Jan 29, 2025 · Keep Updated: Regularly update ESPHome and your ESP32 firmware for new features and bug fixes. The configuration works well and i get notified with the switch is closed. Specifically, it will: Blink slowly (about every second) when a warning is active. I also have a bmp280 and a tftp display on the same i2c, both work fine with esphome-2025. The default deep sleep configuration is a compact configuration stanza detailing the time spent in deep sleep and the run time. If you let it sit long enough or keep resetting it, it mite work. I can of course block it by setting the reboot Jan 3, 2024 · When you have different sensors beside the relay which update a lot, you indeed will have a lot more flash writes and then it will be usefull to set the flash_write_interval to 5 or more minutes minutes. Home Assistant is open source home automation that puts local control and privacy first. How am I supposed to find out what platform to use for the number component? Am I missing something here? Feb 8, 2024 · Was the board discovered in HA and you have completed the configuration to add it? If you go to Devices/Services - Esphome- is your board in the list of esphome devices? Its probably a good idea to also post your config or at the very least your wifi/networking part of the config. But when the device comes back from deep sleep, it will at first show the sensor states as not available. If saving a dollar or so on a cheaper microcontroller is tempting, keep in mind that you’ll just have to buy yet another, different/“better” board when you realize that the cheaper one doesn’t meet the needs of your project (s). Mar 27, 2020 · Hi Guys, So i have ESPHome running on SonOff switches. ESPHome was much easier then Tasmota for me. esphome and archive (or . under_stair_cupboard shows as on, regardless of the actual state of the device. After at most 1000 seconds uptime, it resets. I've ruled out WIfi, since it happens with different APs. 14. Mar 26, 2020 · I am not using the Api, it isn’t in the code. 2 days ago · I see the same timeouts in the logs and I do not get readings for humidity, so I suspect this is an issue with the changes to the htu21d driver in esphome-2025. 🎉 Happy New Year! 🎉 We’re kicking off 2025 with a number of updates, several of which are focused on removing old code. If retain is set to true, the broker will keep the last message on the topic until someone gets it. Mar 28, 2024 · I’m relatively new to ESPHome, but have been using devices without issue for a few months. Say goodbye to physical connections for firmware updates, and embrace the convenience of wireless technology. ESPHome Core Configuration Here you specify some core information that ESPHome needs to create firmwares. Defaults to true. I thought with setup like this: globals: - id: pref_pos type: int restore_value: yes initial_value: '55' - id: timer_active type: bool restore_value: yes initial_value: 'true' … I could have an initial values 55/true after flashing and after any The problem I am using ESPHome in an outdoor thermometer using a bme280 for measuring temperature, humidity and air pressure and a max17043 for monitoring the battery. This can cause issues if there are other ways of controlling the component with retained MQTT commands, but this is no different than other ways of doing bad things like having multiple switches control the same component, etc. Home Assistant has a powerful MQTT integration for receiving, sending, and processing data. I understand you suggestion to retain the mqtt message but how to tell the esphome to retain? Feb 8, 2024 · Was the board discovered in HA and you have completed the configuration to add it? If you go to Devices/Services - Esphome- is your board in the list of esphome devices? Its probably a good idea to also post your config or at the very least your wifi/networking part of the config. Use Case: I void set_discovery_info (std::string &&prefix, MQTTDiscoveryUniqueIdGenerator unique_id_generator, MQTTDiscoveryObjectIdGenerator object_id_generator, bool retain, bool discover_ip, bool clean=false) More RAM and/or flash memory means you can have bigger/more complex ESPHome configurations. I want light up led strip when someone turning on this power switch. I am using Esphome via MQTT. Please note you have to leave out initital value in input value config for it restore Apr 16, 2019 · Using ESPHome integration Home Assistant communicates just fine with the sonoff. h> Logger Component The logger component automatically logs all log messages through the serial port and through MQTT topics (if there is an MQTT client in the configuration). This works well. flespi. More #include <custom_mqtt_device. Warning This is not secure and Aug 17, 2018 · Use retain if you need to know the state when you startup and either can’t/don’t want to persist it yourself or can’t/don’t want to read it on startup. It’s recommended to provide a static IP for your node, as it can dramatically Jan 23, 2025 · An MQTT message broker is the standard way to transfer information between different IOT devices. This is a problem as say during the night if the fan is on before the power cut, it just stays Jan 23, 2025 · There are three steps: a) enable the MQTT integration in Home Assistant by adding parameters to the central configuration file, b) Add MQTT integration to each ESPHome controlled sensors and the behavior to be triggered when an MQTT message is received, and finally c) Define custom Home Assistant Dashboard cards that will send the MQTT messages. However in the event of downtime with the Home Assistant or the Sonoff I tihink it would be nice to have some extra logic using the states on both ends. Thanks for attempt! Abeltje (AbeltjeNL) September 10, 2023, 8:22pm 4 It does work, but, the state of the light will only be stored in the flash memory after 1 minute because of this breaking change that will preserve your flash memory: ESPHome 2023. I can only conclude that the reason has to be the api part. When it gets back online, all states are returned to default (relays off, blue led off). By default, all logs with a severity DEBUG or higher will be shown. I reverted back to esphome-2025. So I tend to avoid retain like the plague and esphome::mqtt::MQTTComponent Class Reference abstract MQTTComponent is the base class for all components that interact with MQTT to expose certain functionality or data from actuators or sensors to clients. Can this be fixed that Home Assistant after restart reads last value sent by sensor which Feb 13, 2025 · esphome: name: $ {esphome_name} mqtt: broker: mqtt. UPDATE: Added log file truncation support to prevent unmanaged log file growth. g INFO or WARN ) can help with the performance of the application and memory size. Serial displays like Nextion TFT LCD Display that have their own processors for graphics rendering. io. Status LED The status_led hooks into all ESPHome components and can indicate the status of the device. Is it mostly default with just ssid and password or have you messed around with the configuration options there Light Component In ESPHome, light components allow you to create lights usable from Home Assistant’s frontend and have many features such as colors, transitions and even effects. By default, the sensor platform will chose appropriate values for all of these by default, but you can always override Jun 26, 2022 · The problem There are several problems that might be interacting. The devices are battery powered, so I need to use deep sleep. Description of problem: esphome resets after a few minutes, always. Join us below for the ESPHome New Year Release Party. I have some sensors in home assistant and their state is being updated from other devices, so they have always valid states in HA. (It’s an old industrial building with electrical issues, the wifi goes down fairly regularly etc). Oct 19, 2024 · Introduction This is a follow up to ESPHome logger => to a file - ESPHome. Is there a HA template i can use to read last known value and show instead Sensor Component ESPHome has support for many different sensors. When offline, it shows up as ‘unavailable’ and displays no data on the history graph. 6 are TreatLife dimmers, 2 TreatLife Fan controls, and the rema May 28, 2020 · I have created an ultrasonic sensor which is mounted into a sewer cover and measures the amount of capacity left in the sewer tank. Does anybody have any idea why that happens? Here’s the code in the simplest one (fewest relays and only one ina219 voltage sensor…), as an example. To my surprise there were specific esp devices that have remained offline. ℹ️ Note The “severity Aug 2, 2025 · This class is a helper class for custom components that communicate using MQTT. That's where ESPHome comes in! ESPHome is a user-friendly system that allows you to control and automate devices in your home without having to be an electronics guru or a programming Oct 16, 2022 · I have nothing else in the system that could trigger reboots, and still the ESPs in my boat reboot every 15 minutes like clockwork. Mar 9, 2025 · Sending yaml or ESPHome updates Consider also that the shorter the run_duration, the less time in which to send yaml configuration or ESPHome updates. Please note you have to leave out initital value in input value config for it restore Apr 16, 2019 · When the Sonoff has been rebooted in HA the device (and switches etc) become unavailbe until it gets back online. Apr 7, 2021 · Hello. One issue is when we loose power (that happens more often in India then guys in the west), all my devices default to OFF. Thanks Aug 19, 2020 · ESP (ESP32/ESP8266, Board/Sonoff): nodemcuv2 ESPHome version (latest production, beta, dev branch) 1. There are a few threads on this forum which provide methods to pause deep_sleep to accomplish this … though most use MQTT messages as the trigger. discovery_prefix (Optional, string): The prefix to use for Home Assistant’s MQTT discovery. ESPHome is a framework for working with ESP devices, and making them easier to setup and use in a home automation environment. Problem-relevant YAML Oct 24, 2021 · Hi All, I have setup an ESP32 with a switch to notify me that mail has been delivered. From espHome web I click on device, it shows the arduino nano, it says that it is paired; I click prepare for first use; then it shows “Connecting” but this screen just times out and it never connects. One powerful feature is to use MQTT messages as configuration instructions. 4. This sensor gets power supply only a couple hours a day and is offline for the rest of the day. Should not contain trailing slash. This function can be called multiple times and any certificate that matches any of the provided fingerprints will match. Since I made a few restarts of the wemos I discovered that my “total”-values were not stored. You also can’t have both Wifi and Ethernet setup in same time (even if your ESP has both wired). I tried setting the initial state off in customize. Would it be Number Component ¶ ESPHome has support for components to create a number entity. This guide covers best practices for efficient logging in ESPHome components and platforms. h> Add a SSL fingerprint to use for TCP SSL connections to the MQTT broker. Dec 13, 2022 · At the present, I dont think that it is possible to retain the value of such a sensor without an update from the device but there are some work arounds either using Input Number integration or using nodered. 6, and have 17 Tuya/Beken devices. ESPHome subscribes to the same topic multiple times when there are multiple - topic: entries for the same topic with different payl Nov 1, 2020 · Hi all, I’m using a nodeMCU with ESP8266. on_boot: priority: 100 then: switch. I got close by (ab-)using a LVGL: Tips and Tricks Here are a couple recipes for various interesting things you can do with LVGL Graphics in ESPHome. Unfortunately, this means we have a few breaking changes, but this work helps keep ESPHome more maintainable in the long-run. The basic idea: Retained messages on the queue are read by devices to change their configuration. I have power switch that turn power from my esp-01 that controls led strip via pwm gpio3. Whenever I shut down my test network, the Apr 26, 2023 · Hi everyone, I have 2 ESP devices, hardware the same (ESP WROOM 32 with a BH1750 lux sensor), and configuration almost the same (one retrieves data from my MiScale) and I see that they keep rebooting from time to time and I am trying to understand if it is my fault (bad configuration probably or not use of the best/correct SDK) or it is something we should make peace with 🙂 By the way, both Mar 19, 2019 · Is it possible to set an initial state for an ESPHome light component as shown in HA on HA restart? I may just be missing something with the Sonoff Basic set up with the configuration below… When I restart HA, light. I made my yaml like this esphome: name: back_lt platform: ESP8266 board: esp01_1m on_boot: priority: 780. turn_off: switch_pwr_en switch: - platform: gpio pin: D4 id: switch_pwr_en Jun 19, 2023 · Didn’t seem like those worked. Jun 23, 2024 · I am struggling to find out how to use the Number Component in ESPHome (and not the number template). 9. For example, global variables can be used to store the state of a garage door. Global Variables In some cases you might need to share a global variable across multiple lambdas, or to remember between periods of deep_sleep. It only changes the state in the frontend and the internal state. The best idea I had so far was to create an input_number and any time the value in the esphome sensor changes we update the input_number, then use the input_number to drive any further automation, but that seems super convoluted. Nov 11, 2020 · ESPHome - keep sensor internal to ESP node to avoid unncessary network traffic Third party integrations tstas November 11, 2020, 9:43am 1 Sep 12, 2021 · Hi there, I’m using the excellent bodymiscale custom component to capture two weights from my Xiaomi scales but the way the code has been designed, the weight value is not persistent and if ESPHome is upgraded (which happens quite frequently lately), the weight value is lost and the entity returns a value of unknown. 4 and I think up to date. Perfect to run on a Raspberry Pi or a local server. is there a way on restarting the esp32 for it to poll home assistant for the state of certain switches? so for example i have a bipolar led that shows is a certain door is open or not - this is managed through home assistant and hows on the dashboard etc - so pins 19 and 21 are red and green on the led (with an Jul 28, 2023 · Unlock the power of energy efficiency with our comprehensive guide on setting up Deep Sleep in ESPHome. My last project was making my watermeter a smart one. 4 Affected component: Core, I guess. Using ESPHome, you can access logs from the AddOn. Defaults to homeassistant. Jun 2, 2019 · Setup - I have capacitive soil sensor plugged to Wemos d1 mini which is connected to battery. Increasing the log level severity (to e. Available for free at home-assistant. However, the mqtt broker mosquitto remembers last value and can show it when the sensor sleeps. It's important to understand that logging has performance implications, especially in networked environments. By default, in HA, it is not enabled. 10. The problem is i would like this to be battery powered and i have setup the deepsleep mode using MQTT, which again works fine BUT when i configure it with the wake up pin in never sleeps, it says setting up deepsleep then wakes up Dec 23, 2021 · ESP32 WROOM 32 or any 32. Every time I make a tiny change and re-deploy, retained messages are resent and generate a bunch of unnecessary logging messages. If you are using HA you need to copy the latest updated value of the sensor to a input number entity. @jenshenk: What version of ESPhome are you on? I run it in docker also. Base Light Configuration All light configuration schemas inherit these options. Whether you're a beginner or pro, discover actionable tips to level up your home automation projects. Mar 25, 2025 · I’ve been building a prototype automated dust collection system for the ‘makerspace’ where I volunteer. Whether you're monitoring temperature or controlling lights, ESPHome simplifies the process, making it accessible for everyone. It has retain flag: true When I restart Home Assistant the sensor shows as unavailable until it wakes from deep sleep and sends value state. iur p7afaxow llpga sk9xof knt 8ne0ofd jd6duflbxp n2cgcmf gl3l takf

Esphome retain. Defaults to true.