Xiaomi Mijia LYWSD03MMC. 7k 458 ATC_TLSR_Paper ATC_TLSR_Paper Public 5 Minutes. It was very easy to setup everything. They show in real time temperature and humidity, as well as the battery state. Using esphome in an ESP32 dev board to pull the values of some LCD temp sensors (with BLE) and integrate them into home assistant. zagnuts (Zagnuts) October 31, 2023, 12:25am 2. Custom firmware for BLE thermometers on the Telink chipset. Disconnect. BTHome is an energy efficient but flexible BLE format for devices to broadcast their sensor data and button presses. h Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter - ATC_MiThermometer/flash. I obtained a bindkey using Telink Flasher using these instructions: TIP: Getting the bind key for the Xiaomi Mijia LYWSD03MMC sensor · Issue #277 · mKeRix/room-assistant · GitHub Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter. Also btmon sees some events from the device’s MAC address. The firmware version of this thermometer is: 3001-0114. All reactions Feb 17, 2021 · Xiaomi-cloud-key-extractor been updated. Some days ago lywsd03mmc B1. Sep 25, 2022 · It has the original Xiaomi firmware (version 1. Flashing Firmware Connecting to Sensor. 3 participants. Dec 4, 2022 · While the thermometer works fine, I can't get it to show any sensors in Home Assistant. Best temperature and humidity WiFi capable sensor. We will begin by flashing the ATC OTA firmware, this is needed before we can move on to the zigbee firmware. 9 is now fully compatible This repo is made together with this explanation video:(click on it) web data. Do the connection. 2 Likes. After restarting, the thermometer will wait forever for registration. To set a precise offset use the text input field with FA+offset for Temp and FB+offset for Humiditiy convert an int8 to hex. com :)Model: LYWSD03MMC Github repo: https://github. The LYWSD03MMC is a BLE (Bluetooth Low Energy Sensor) manufactured by Xiaomi, which relies on the Telink TLSR8258 MCU. I can see ATC device when connecting via Telink flasher but logs s the following: Reconnect 1 of 5 NetworkError: connection failed for unknown Reason Reconnect 2 of 5 Dec 20, 2023 · A solid “BT” icon indicates a connection loss or the thermometer is not registered with the Zigbee network. md at master Apr 13, 2021 · Hi there! I have some cheap BLE Xiaomi Mijia Mi Temperature and Humidity Monitor 2 (LYWSD03MMC), with Telink custom firmware installed (Telink Flasher) and integrated in Home Assistant. Telink Flasher to convert Xiaomi Bluetooth sensors to Zigbee. Always up-to-date on your indoor temperature and humidity. So, pl How to flash the custom firmware: Download the ATC_Thermometer. It will now extract your Bluetooth encryption keys from the Xiaomi cloud as well, which is needed for some sensors in BLE monitor 🥳. Sep 2, 2021 · 450 words. Battery also lasts at pvvx Telink Flasher also allows to flash custom firmware on supported sensors. It allows data encryption and is supported by popular home automation platforms, like . Apr 29, 2023 · To continue with the Home Assistant Xiaomi Temperature & Humidity sensor integration we have to obtain the Xiaomi encryption a. Currently, it supports the Xiaomi Mijia (LYWSD03MMC) (BLE + Zigbee), with the ATC441 protocol, flashed with a custom firmware. Very cool, with a conversation about it here. Sep 6, 2020 · sl4m (Simon) September 6, 2020, 4:08pm 1. I dont know how to submit the code to the developer to include it to github if they want to. I used a mobile phone and performed the following steps: Keep the Xiaomi Mijia LYWSD03MMC sensor close to the mobile phone. Hence, a higher number means a more popular project. Sep 18, 2022 · Testing the new Bluetooth Proxies, I used an ESP32 Dev Board, as well as a Xiaomi Mii Thermometer, flashed using the Telink flasher. Working principle of Tasmota BLE drivers (>8. While i dont know 100% i am veeery sure they added a signing to the update which can not be bypassed without any exploit. Hardware revision B1. Make sure to watch the first vid Aug 5, 2019 · My devices are Xiaomi Mijia Mi Temperature and Humidity Monitor 2 ” LYWSD03MMC with ATC custom firmware via Telink Flasher added in Home Assistant with Passive BLE Monitor integration (Xiaomi Mijia BLE MiBeacon monitor) - Custom Components - Home Assistant Community. Since dashboarding and history kind of come out of the box with HA, this would really allow me to visualize Custom firmware for the Xiaomi Thermometers and Telink Flasher - GitHub - unhyeok12/Mi-Thermometer: Custom firmware for the Xiaomi Thermometers and Telink Flasher Press Start Flashing. Development. 6. Dec 23, 2020 · Hello! The firmware works perfect on LYWSD03MMC! Thank you! I am using home automation and I want to add more than one temp sensors, so I need MAC addresses of them to assign for every room. 9 C ATC_MiThermometer VS NimBLE-Arduino Mar 25, 2021 · Use this cheap Xiaomi LYWSD03MMC Bluetooth BLE thermometer Hygrometer in Home Assistant to monitor temperature and humidity. Oct 30, 2023 · In this article, I’m going through the process of flashing a Xiaomi Sensor with Zigbee firmware and integrating the device with Zigbee2MQTT and ZHA in Home Assistant. I want to flash PVVX custom firmware but when I try to connect with TelinkMiFlasher, I get this message: 12:24:09: Searching for devices 12:24:22: Connecting to: MJ_HT_V1 12:24:24: Not found Telink Feb 5, 2021 · No milestone. 4 to upload the custom firmware "ATC_v38. No branches or pull requests. zigbee. 0 Home Assistant Supervisor 2022. Humi 0% offset. Yes, I'll did through some old logs. I only have the sensors, no Xiaomi gateway. The goal of this project is reverse engineer and ultimately develop a custom firmware for the Qingping CGG1 (also known as the ClearGrass CGG1 or Xiaomi CGG1) bluetooth temperature and humidity sensor. Oct 17, 2022 · I had to flash the latest firmware through GitHub - pvvx/ATC_MiThermometer: Custom firmware for the Xiaomi Thermometers and Telink Flasher via USB to Serial converter and set the protocol to “mihome”. Open the my_index. 7:32:54 pm: Searching for devices 7:33:04 pm: Connecting to: ATC_64E We would like to show you a description here but the site won’t allow us. It’s a square model with a small Jan 15, 2021 · Requires the "libmijia_std_authen_eclipse_telink_1_0_1. Default intervals for temperature and humidity reporting are set to 30-120 (min-max) seconds, with changes from 0. And configuration sample has no reference to the bind key. Create the ota folder and name it anything you like, make sure you change the path if you do. I’m using the XDO BT-802 Bluetooth receiver Oct 19, 2023 · It seems that the way to update firmware using telink flasher has been forbidden. 9 is now fully compatible This repo is made together with this explanation video:(click on it) Nov 16, 2023 · Happy to report I got my LYWSD03MMC sensors working using BTHome without needing to flash custom firmware. io) Issues · pvvx/ATC_MiThermometer · GitHub. Versions: Home Assistant Core 2022. If you have a Telink based CGG1, see pvvx/ATC_MiThermometer for custom firmware and documentation. Xiaomi's Bluetooth thermometers and hygrometers offer a stylish and budget-friendly choice for monitoring temperature and humidity. a bind key using the Telink Flasher web tool that Aaron made. Sensor offset: Temp 0°C offset. Jan 26, 2021 · Check out more: https://www. Feb 18, 2020 · Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter - atc1441/ATC_MiThermometer. I would like to upload this software to that thermometer. py at master · atc1441/ATC_MiThermometer Oct 18, 2020 · Je k dispozici pouze v jedné barvě a to bílé a je vhodný pouze pro vnitřní použití. LYWSD02MMC is listed as supported by Xiaomi Mijia BLE Sensors ESPHome component. Sep 5, 2020 · Below is the easiest way I found to get the bind key for the Xiaomi Mijia LYWSD03MMC sensor. json file and add the following: Jan 7, 2024 · NB atc1441 Telink Flasher is for a slightly different model, LYWSD03MMC. Ist dies erfolgt, muss der Button Connect geklickt werden. Xiaomi Mi BLE Temperature & Humidity Sensor. That was what I used. This can be used to get instant advertising if the sensor data changes to fast. 1_0159 firmware from Xiaomi and Telink Flasher not work anymore. After the connection is successful click on "Do Activation" to Authorize the Connection. Please note that Bluetooth on Nov 21, 2019 · i get my Xiaomi Mijia Smart Bluetooth Thermometer 2. I found a couple of ESP32 boards cheap at the local hobbiest store ( Jaycar Duinotech Mar 29, 2023 · Currently, it supports the Xiaomi Mijia (LYWSD03MMC) (BLE + Zigbee), with the ATC441 protocol, flashed with a custom firmware. Oct 23, 2021 · This is a follow up video on the MiThermometer Custom firmware:https://youtu. Always up-to-date on your indoor temperature and humidity Custom firmware for the Xiaomi Thermometers and Telink Flasher and you can use the Telink Dec 17, 2023 · I noticed that thermometers with firmware version: 3001-1006 hold the battery better. Begin with removing the back of the sensor so you have access to the battery, we will pop it out later. I have a number of these that are no longer being used (replaced with esphome Dec 12, 2023 · Last option is the third one possible via TelinkMiFlasher- some Xiaomi software. Maybe then it will work but the sensor where I uploaded the BLE firmware is “locked” until I either upload firmware with UART or BLE software gets an update that allows OTA flashing of Zigbee firmware. After you have flashed the firmware, the device has changed it's bluetooth name to something like ATC_F02AED. Go to the Flasher 1 tab Jun 2, 2022 · Hi, I have this Xiaomi Mi BLE Temp & Humidity sensor. custom firmware (i suppose same as your) GitHub atc1441/ATC_MiThermometer. Klaus_K: As far as I know, reading custom advertisement data is not supported by the library. 1_0159 is temporarily not supported! Please post questions about using and setting up Home Assistant integrations on the appropriate resources! Dec 10, 2022 · flash an ESP32 with the BT proxy firmware. 4 (pvvx. After flashing from BLE, the thermometer is already in standby mode for registration in the Zigbee network. GitHubatc1441. I think I’ve dotted my I’s and crossed my T’s but after a month of wrestling this issue, I’m throwing in the towel. 3 Home Assistant OS 8. An dieser Stelle wird das Thermometer ausgewählt. 1 I added the following to my configuration. 125Kč) 1ks / $7. Select Firmware: Feb 29, 2024 · Nino · 07/04/2024 at 5:19 pm Hello Kiril, Thanks for the wonderful work that you are doing, I have followed many of your videos and they helped me build a better smart home, I’m having a problem with this Xiaomi Bluetooth humidity sensor I did everything as per your instruction, but every time I’m getting unsupported device when pairing it with Zigbee2mqtt also I have tried the Sep 21, 2022 · Xiaomi Mi Temperature and Humidity Monitor (Hardware Version: LYWSD03MMC) Resources. Jul 26, 2023 · What I found was that the “Xiaomi BLE” integration only works with the factory firmware using bind-keys. Bluetooth LCD teploměr a vlhkoměr. Custom firmware for the Xiaomi Thermometers and Telink Flasher via USB to Serial converter - bsplanning/xiaomi-mijia-bluetooth-firmware Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter - GitHub - DEVBOX10/atc1441-ATC_MiThermometer: Custom firmware for the Xiaomi Thermometer LYWSD0 OTA Flasher. 9 is now fully compatible This repo is made together with this explanation video:(click on it) Sep 1, 2020 · This video is an overview of the 4$ Xiaomi Thermometer custom firmware i made, Check out https://pcbway. 10 Minutes. Using python “gatt” module and its “gattctl --discover” I do get the device discovered/listed. 175Kč) 2ks / $9. Flashing link: Telink Flasher ESPHome ATC Thermometer sensor instructions: Xiaomi Mijia BLE Sensors — ESPHome. However, Home Assistant XIAOMI BTE integration says there are no devices. and i have problem read the data, i tested using: platform: xiaomi_lywsdcgq mac_address: XXXXXXXXXX temperature: name: “Xiaomi LYWSDCGQ Temperature” humidity: name: “Xiaomi LYWSDCGQ Humidity” battery_level: name: “Xiaomi LYWSDCGQ Battery Level” platform: xiaomi_lywsd02 mac_address Jan 30, 2024 · Flasher 2. Sensor instant Advertising: Temp 0,5°C instant alarm. 5 updated to 2. To flash a new firmware via an standard USB to UART adapter, simply connect the Thermometer as seen in the picture Mi_SWS_Connection. IIRC, the bthome one only provides a Nov 8, 2020 · Then proceeded to flash the second thermometer. Step 3. LYWSD03MMC with custom and original firmware works at the same time (if you have 2 different sensors). bin file from the latest release assets and open the Web Flasher. 50 incl GST each, when I bought 4 of them. 230) 3ks. Second sensor - Xiaomi MJ_HT LYWSDCGQ/01ZM - shall be working out of the box (Bluetooth only). In logs it always require Activation. io development by creating an account on GitHub. Jerking the battery won't change anything. When trying to Jan 11, 2023 · Telink Flasher sees Xiaomi’s and flashes successfully. 92 (cca. Devices can run over a year on a single battery. So ota is unlikely. Jun 30, 2023 · Xiaomi Miija. 35 (cca. Status: waiting for you to connect a device. Keep things clearly separated. Upload it to /config/zigbee2mqtt/ota. Windows USB-COM Flasher. When updating these with the Telink flasher (like I did), the bind-key is removed! (Telink Flasher) Flashing them back to factory firmware seems to fail more often than it is successful, so I will not go that route. Verbose logs show ATC is visible, but does not popup as Discovered in HomeAssistant: [13:44:15][C][logger:275]: Logger: [13:44:15][C][logger:276]: Level: VERBOSE Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter - atc1441/ATC_MiThermometer Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter NimBLE-Arduino 12 667 3. info/devices/xiaomi/xiaomi-mi-temperature-and-humidity-monitor-2/ Learn how to reset XIAOMI Mi Temperature and Humidity Dec 27, 2023 · Stop Zigbee2MQTT. c Custom firmware for the Xiaomi Thermometers and Telink Flasher C 2. An alternative Telink Flasher by atc1441 also allows you to generate new bind keys, and supports even more Xiaomi devices compared to the Telink Flasher by pvvx. 0. About the LYWSD03MMC. Hello Via Telink Flasher v7. hardreset. Am I right to assume the Telink Flasher only works on Android phones, or at least not iPhones? I've tried following the tutorial a couple of times, but tapping connect doesn't seem to do anything? Sep 16, 2020 · When working with the Mi app and Telink Flasher, make sure that the battery in the sensor is good. You don’t need the ESPHome integration, you can use the bluetooth proxy installer instead. This firmware does send data more frequently and is a bit more power hungry than the stock firmware. Connect to the Xiaomi thermometer; searching may take a while as it broadcasts not so often for better battery life. Their seamless integration with ESPHome thorugh the versitile ESP 32 allows users to transmit data directly to Home Assistant, bypassing the need for any additional apps. This repo is made together with this explanation video:(click on it) Sep 30, 2020 · So I made it work. Mar 23, 2021 · Custom firmware for the Xiaomi Thermometers and Telink Flasher (by pvvx) NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Es erscheint eine Liste an Bluetooth-Geräten, die in Empfangsreichweite sind. Feb 3, 2021 · Hi All, At the beginning I would like to thank @atc1441 for his great job with providing flashing tool and custom firmware support. Download your firmware file to your PC. Temp/Humidity: waiting for data after connecting. Thanks to the help of @rezmus it is now much easier than before to get the required keys. Clear Log Oct 28, 2022 · I have used Telink Flasher v4. Configuration. At "Advertising type" uncheck "AdFlags" and check "Encrypted beacon" for shortest encrypted packet Aug 16, 2022 · 1-Power on the Xiaomi sensor (not reflashed) 2-Wait time until HA recognize the sensor 3-Wait time until HA show a warning with the request of the bindkey 4-Run Telink flasher. $5. The text was updated successfully, but these errors were encountered: 😕 6 kquinsland, scharmach, metgen, paroczigergo, sidianneng, and vmavromatis reacted with confused emoji Dec 9, 2020 · For your info i’m using 5 LYWSD03MMC thermometers with custom firmware and an esp32 with openmqttgateway. a" library from Xiaomi, obtained by subscription: (I want to use thermometer in xiaomi app and HA so i need Nov 1, 2023 · This guide describes how I got the Xiaomi Mijia LYWSD03MMC Temperature and Humidity sensors working in September 2022. Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter - atc1441/ATC_MiThermometer Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter. I installed the latest image of Home Assistant on an micro SD Card, and put this into my Raspberry Pi 4 Model B with 4GB Ram. Works on Windows as well as Linux. yaml - platform: mitemp_bt mac: 'A4:C1:38:A7:C9:1A' name: Living Room Temp force_update: true median: 1 cache_value: 10 monitored_conditions: - temperature Mar 29, 2023 · Xiaomi Miija. Oct 8, 2020 · This solution would apply to ALL custom advertising data solutions, not just Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter. To use the sensor again with the Xiaomi Mi Home app, the device needs to be removed and then re-added inside the Mi Home app. Custom firmware for Zigbee 3. py: Just comment away the adv_index and add the rest of the code. Temp 0,5°C instant alarm. The name varies, but I think the correct one is “Mijia Bluetooth Thermometer 2”. Open the Telink Flasher web tool – LINK from a Laptop or Phone with Bluetooth enabled in any of the supported browsers (I used Chrome). 1°C and 1% being pushed immediately. Contribute to pvvx/pvvx. Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter. When I add them to Homey through the Home Assistant app, I can easily detect all the “entities” (except battery state, don’t Oct 30, 2023 · Xiaomi LYWSD03MMC Zigbee Firmware. To set other values use the text input with FC+temp alarm or FD+humi alarm with uint8_t values. It’s a square thermometer with an LCD screen and without a clock. After that every time I am connecting back in ~10 seconds it will automatically disconnect. Download the ATC_Thermometer. Telink Flasher v4. )~ The idea is to provide drivers with as many automatic functions as possible. 9 an upda BTHome is an open standard for broadcasting sensor data and button presses over Bluetooth LE. 55 (cca. I actually used 3 of those with two strategically placed ESP boards for coverage in my house. I had to make some changes in sensor. After I was done with the second thermometer. I added the following code to ArduinoBLE BLEDevice. Humi 5% instant alarm. The small 4$ sensors that are quadratical. I tried to use the bluetooth binding, however it is not detecting any device at all. Select Firmware: Clear Log. 4 I loaded the software onto the thermometer with one click. Then I also got 2 devices detected per physical device: a “Xiaomi BLE” one and a “BTHome” one. Mar 28, 2023 · Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter - GitHub - atc1441/ATC_MiThermometer: Custom firmware for the Xiaomi Thermometer LYWSD03MMC and The screen will briefly display “---” (for devices using a screen with fast refresh capabilities, not E-Ink). 6 and B1. Flash the ATC OTA firmware. Using sudo bluetoothctl via SSH i can find Apr 4, 2022 · Custom firmware for the Xiaomi Thermometers and Telink Flasher via USB to Serial converter. Read more 348 Commits; 1 Branch; 9 Tags; README; MIT No Attribution Jan 1, 2021 · Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter ATC_MiThermometer. I am running home assistant on a Raspberry Pi4. Looks like you stock data/ original packet is from an LYWSD03MMC but we need a original packet from another Xiaomi thermometer without encytion. Note that I am not an expert in this area, I read a lot and spent a lot of time on this. You need an ESP32 board such as the ESP32 D1 Mini . The custom firmware can be flashed from here GitHub - pvvx/ATC_MiThermometer: Custom firmware for the Xiaomi Thermometers and Telink Flasher . Connect Reconnect Hide unknown Mar 6, 2022 · Trying to develop a binding for Xiaomi Mijia Thermometer with a custom “pvvx” firmware (GitHub - pvvx/ATC_MiThermometer: Custom firmware for the Xiaomi Thermometers and Telink Flasher via USB to Serial converter). If you want to use the Xiaomi BLE integration, you need the “bind key”. 1_0068 according to Mi Android app) and it announces itself as MJ_HT_V1 with MAC '4C:65:A8:'. A flashing “BT” icon is called by the identify command. When flashing the thermometer with the original Xiaomi software release, the flashing process works but when restarting the thermometer after the downgrade (battery out/in), the software is still the custom firmware. Get Advertising MACBLE device name prefix filter (s) Connect. 4, B1. Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter C 2. py tool. Hello all, i am trying to integrate a XIAOMI Mijia Bluetooth Thermometer 2 device into my openhab 2 (runing on a RPI 3b+). Use your laptop (with BT device) and go to Telink flasher (link in resource above) In the name prefix, use “LYWS” and click on Connect Jun 1, 2021 · Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter - atc1441/ATC_MiThermometer. Using these devices in conjunction with Home Assistant, you now have a winning combination. Reconnect. 8k 196 ZigbeeTLc ZigbeeTLc Public. 1. I decided to switch off smiley and battery update on display on the first one. I think is is a good direction to move core Bluetooth LE interface out of Home Assistant. 05. k. 0 IoT devices on the TLSR825x chip Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter. Xiaomi Mijia (LYWSD03MMC) Project repo Advertising CustPower DevPoint GraphAtc GraphAtc1 GraphAtc2 GraphMemo GraphMemoOriginal OriginalPower TelinkMiFlasher TelinkOTA Custom firmware for the Xiaomi Thermometer LYWSD03MMC and Telink Flasher via USB to Serial converter - ATC_MiThermometer_atc1441/README. Contribute to erdose/xiaomi-mi-lywsd03mmc development by creating an account on GitHub. jpg to the USB to UART converter and run the TLSR825xComFlasher. They are using BLE. bin". To use this mode, copy or set a new 32 char hexadecimal key (see example ini, note the preceding k is only in ini file) by pressing "Show all mi keys" in Telink Flasher and in case of setting a new one pressing button "Set new Token & Bind keys". Sensors are around NZ$8. This will work out of the box with Tasmota. Mit dem Smartphone muss die Webseite des Telink Flashers aufgerufen werden. 5. You can get this with: call Telink Flasher, connect thermometer via Bluetooth, then run “Do Activation”. Just my assumption Sep 7, 2021 · I have bought 4 Xiamoi Thermometer of the 2nd generation. This is a program for OTA projects with Telink SDK, no third-party (mijia) protections. 08:38:01: Not connected 08:38:03: Searching for devices 08:38:39: Connecting to: LYWSD03MMC 08:38:46: Detected Mi Thermometer 08:38:47: Connected 08:39:05: Activating now, please wait Jan 17, 2021 · Flashen der Custom-Firmware. Contribute to devbis/z03mmc development by creating an account on GitHub. If the Mi app cannot pair with (or the Telink Flasher cannot connect to) the sensor right next to my mobile phone then most likely I needed to put a fresher battery. Now I am trying to connect this sensors with Home Assistant Oct 24, 2022 · I will try to add ATC thermometers i’ve flashed manually. I have been very successful with this code, below, I wrote and run on a Raspberry Pi. Do the activation to have the bindkey 5-Copy the bindkey created in Telink to HA 6-HA report that the bindkey is wrong May 27, 2022 · Summary. Use TelinkOTA to flash old or alternative versions . 577×577. This is likely to change soon as Bluetooth functionality is being built into Home Assistant Core, but for now it’s probably fairly accurate. ESPHome could be an extra moving part though. Thank you! I followed instructions and flashed the latest custom firmware to my LYWSD03MMC device. Yeelight Remote (YLYK01YL) and dimmers (YLKG07YL and YLKG08YL) can use V2/V3 MiBeacon encryption, although more recent devices seem to be supplied with V4/V5 encryption. github. Removing the battery in the sensor invalidates the bind key. Warning: The new bind key will work with ESPHome, but the Mi Home app will not recognise the sensor anymore once the device has been activated by the TeLink flasher application. Warning: Firmware LYWSD03MMC version 2. Telink OTA ⓘ Live Data ; Graph Atc 1 Start Flashing. In this case, 1141-0206-99993001-CGDK2_v46. Unfortunately, after a week the battery dropped to 0%. be/NXKzFG61lNsSince Xiaomi released new Hardware revisions B1. az yw ih ba en pu jn ij az kn