{"id":9201,"date":"2025-11-14T10:29:08","date_gmt":"2025-11-14T08:29:08","guid":{"rendered":"https:\/\/www.sigalou-domotique.fr\/?p=9201"},"modified":"2026-01-12T20:03:03","modified_gmt":"2026-01-12T18:03:03","slug":"je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2","status":"publish","type":"post","link":"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2","title":{"rendered":"I switch from the Zigbee Nabucasa ZBT-1 controller to the ZBT-2"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6ae45e7286477\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6ae45e7286477\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#Migration_du_controleur_Zigbee_Nabucasa_ZBT-1_vers_le_ZBT-2\" >Migration of the Zigbee Nabucasa ZBT-1 controller to the ZBT-2<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#Presentation_de_Nabucasa\" >Presentation of Nabucasa<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#Mon_experience_avec_le_controleur_Zigbee_ZBT-1\" >My experience with the Zigbee ZBT-1 controller<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#Ma_decouverte_du_nouveau_controleur_ZBT-2\" >My discovery of the new ZBT-2 controller<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#Ou_acheter_cet_equipement\" >Where to buy this equipment?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#Pourquoi_jai_decide_de_migrer_vers_le_ZBT-2\" >Why I decided to migrate to ZBT-2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#Etapes_detaillees_de_la_migration_technique\" >Detailed steps of technical migration<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#1_Je_change_lIEEE_du_nouveau_ZBT-2\" >1. I am changing the IEEE of the new ZBT-2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#2_Jarrete_proprement_Zigbee2MQTT\" >2. I properly stop Zigbee2MQTT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#3_Jinstalle_physiquement_le_ZBT-2\" >3. I physically install the ZBT-2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#4_Jidentifie_le_port_serie_stable_du_ZBT-2\" >4. I identify the stable serial port of the ZBT-2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#5_Je_configure_et_relance_Zigbee2MQTT\" >5. I configure and relaunch Zigbee2MQTT<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-bascule-du-controleur-zigbee-nabucasa-zbt-1-vers-le-zbt-2\/#Mon_avis_final_apres_migration\" >My final opinion after migration<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"Migration_du_controleur_Zigbee_Nabucasa_ZBT-1_vers_le_ZBT-2\"><\/span>Migration of the Zigbee Nabucasa ZBT-1 controller to the ZBT-2<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2><span class=\"ez-toc-section\" id=\"Presentation_de_Nabucasa\"><\/span>Presentation of Nabucasa<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-9206 aligncenter\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/Main_Color-on-Light.jpg\" alt=\"Nabucasa logo\" width=\"180\" height=\"118\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/Main_Color-on-Light.jpg 2000w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/Main_Color-on-Light-600x393.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/Main_Color-on-Light-300x197.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/Main_Color-on-Light-1024x671.jpg 1024w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/Main_Color-on-Light-768x503.jpg 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/Main_Color-on-Light-1536x1006.jpg 1536w\" sizes=\"auto, (max-width: 180px) 100vw, 180px\" \/><\/p>\n<p>Nabucasa is the official manufacturer of the hardware dedicated to Home Assistant, an open source home automation platform that focuses on data privacy. The company offers simple, reliable solutions that are fully compatible with Zigbee, Thread and the emerging Matter standard. These controllers make it possible to centralize the management of all connected home devices directly from Home Assistant, without any dependence on external cloud services, thus guaranteeing total and local control of your home automation installation.<!--more--><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Mon_experience_avec_le_controleur_Zigbee_ZBT-1\"><\/span>My experience with the Zigbee ZBT-1 controller<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-7497\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2024\/06\/20240601_203652-225x300.jpg\" alt=\"ZBT-1 controller\" width=\"225\" height=\"300\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2024\/06\/20240601_203652-225x300.jpg 225w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2024\/06\/20240601_203652-rotated-600x800.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2024\/06\/20240601_203652-768x1024.jpg 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2024\/06\/20240601_203652-1152x1536.jpg 1152w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2024\/06\/20240601_203652-rotated.jpg 1500w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/p>\n<p>I used the ZBT-1, formerly known as SkyConnect, for several years. This USB dongle is based on a Silicon Labs EFR32MG21 chip and has enabled me to manage a stable and efficient Zigbee network, compatible with a wide range of everyday devices such as bulbs, motion sensors, connected sockets or switches. Its native integration into Home Assistant offered a plug-and-play experience: All you have to do is plug it in to make everything work without complex configuration. To find out more about my first installation, you can consult my detailed feedback:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.sigalou-domotique.fr\/en\/jinstalle-une-nabu-casa-skyconnect-sur-une-nabu-casa-green\/\" target=\"_blank\" rel=\"noopener\">Installation of a Nabu Casa Skyconnect on a Nabu Casa Green<\/a>.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Ma_decouverte_du_nouveau_controleur_ZBT-2\"><\/span>My discovery of the new ZBT-2 controller<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-9207\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/2_Recommended_Packshot_01-300x200.jpeg\" alt=\"ZBT-2 controller\" width=\"300\" height=\"200\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/2_Recommended_Packshot_01-300x200.jpeg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/2_Recommended_Packshot_01-600x400.jpeg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/2_Recommended_Packshot_01-1024x683.jpeg 1024w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/2_Recommended_Packshot_01-768x512.jpeg 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/2_Recommended_Packshot_01-1536x1024.jpeg 1536w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/2_Recommended_Packshot_01-2048x1365.jpeg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>The <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a> marks a significant evolution from ZBT-1 thanks to the introduction of a more powerful Silicon Labs MG24 chipset and an optimised antenna that improves signal range and overall network responsiveness. This dongle is about four times faster than its predecessor, while maintaining perfect compatibility with Zigbee, Thread and Matter. It integrates a dedicated migration wizard into Home Assistant, which greatly simplifies the transition for existing users by preserving already paired configurations and devices. Its advanced features include support for ZHA (Zigbee Home Automation), Zigbee2MQTT, OpenThread Border Router for Thread networks, as well as OTA (Over-The-Air) updates to keep connected devices up-to-date without manual intervention.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ou_acheter_cet_equipement\"><\/span>Where to buy this equipment?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Here is the link to his page dedicated to the <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a>. I referenced the sellers and prices.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Pourquoi_jai_decide_de_migrer_vers_le_ZBT-2\"><\/span>Why I decided to migrate to ZBT-2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Here are the main reasons that convinced me to migrate from the ZBT-1 to the <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a> :<br \/>\n<strong>Quadrupled speed<\/strong> : the MG24 chipset combined with the optimised antenna makes the network much more responsive and stable, particularly useful with a large number of devices.<br \/>\n<strong>Flexible choice of network<\/strong> : possibility to select Zigbee or Thread directly during initial installation, to adapt to current or future needs.<br \/>\n<strong>Extended and long-lasting compatibility<\/strong> : ready for Matter and Thread, ensuring a sustainable solution to changing home automation standards.<br \/>\n<strong>Open and modular design<\/strong> : easy to modify or customize thanks to open source tools, ideal for home automation DIYers.<br \/>\n<strong>Attractive price<\/strong> : approx. \u20ac45 or \u20ac49 $, This represents a reasonable investment for a high-end controller.<\/p>\n<p>I chose this migration to benefit from a more reliable, faster and future-ready network, while maintaining full local control and data privacy via Home Assistant.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Etapes_detaillees_de_la_migration_technique\"><\/span>Detailed steps of technical migration<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1_Je_change_lIEEE_du_nouveau_ZBT-2\"><\/span>1. I am changing the IEEE of the new ZBT-2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To avoid disruption of the existing Zigbee network, it is essential to retrieve the IEEE address (Extended Unique Identifier, a unique 64-bit identifier for each controller) from the ZBT-1 and inject it into the <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a> before it is put into service. This allows the new dongle to pretend to be the old dongle with all the devices already paired, thus avoiding a complete re-pairing that could take hours.<\/p>\n<p>I first identify the IEEE address in the Zigbee2MQTT interface, under the \u2018Perms\u2019 tab or in the coordinator\u2019s logs:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9267\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/ieee-02.jpg\" alt=\"Address statement IEEE in Zigbee2MQTT\" width=\"159\" height=\"90\" \/><\/p>\n<p>In my specific case, the address was: <code>048727fffe20536d<\/code>.<\/p>\n<p>Then, on a Windows computer (or Linux\/Mac with adaptations), I launch a command prompt (CMD as administrator) and install the necessary tools to flash the firmware:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"powershell\">python -m pip install --upgrade pip python -m pip install universal-silabs-flasher<\/pre>\n<p>If Python is not installed on your machine, download it easily from <a href=\"https:\/\/www.python.org\/downloads\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.python.org\/downloads\/<\/a> and check the \u2018Add Python to PATH\u2019 option during installation to simplify the commands.<\/p>\n<p>I then connect the <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a> via USB and I pick up its COM port in Windows Device Manager (e.g. COM4). I put the dongle in bootloader mode (unplug the USB from ZBT-2 press + hold the small button on the dongle + replug USB by holding the button for 5 seconds, then release) and write the new IEEE with these precise commands:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"powershell\">python -m universal_silabs _flasher --device COM4 --bootloader-reset baudrate probe python -m universal_silabs _flasher --device COM4 write-ieee --ieee 048727fffe20536d<\/pre>\n<p>If the operation is successful, the console displays a confirmation message similar to this, indicating the old and new IEEE:<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"powershell\">2025-11-25 19:44:11.971 PC--Win11 universal_silabs_flasher.flasher INFO Probing ApplicationType.GECKO_BOOTLOADER at 115200 baud 2025-11-25 19:44:14.063 PC--Win11 universal_silabs _flasher.flasher INFO Probing ApplicationType.EZSP at 115200 baud 2025-11-25 19:44:21.667 PC----Win11 universal_silabs _flasher.flasher INFO Probing ApplicationType.EZSP at 460800 baud 2025-11-25 19:44:23.122 PC---Win11 universal_silabs _flasher.flasher INFO Detected ApplicationType.EZSP, version '7.4.4.6 build 0 (20251117162546)' (7.4.4.6) at 460800 baudrate (booter baudrate None) 2025-11-25 19:44.553-Win11 _-Flasher Universal _silflasher f0:74:bf:ff:fe:40:6f:3b 2025-11-25 19:44:29.648 PC--Win11 universal_silabs_flasher.flasher INFO Wrote new device IEEE: 04:87:27:ff:fe:20:53:6d<\/pre>\n<h3><span class=\"ez-toc-section\" id=\"2_Jarrete_proprement_Zigbee2MQTT\"><\/span>2. I properly stop Zigbee2MQTT<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Before any physical manipulation, stop the Zigbee2MQTT service to avoid corruption of device databases. Go to <strong>Home Assistant \u2192 Settings \u2192 Add-ons \u2192 Zigbee2MQTT<\/strong> and click on \"Stop\". Wait for the status to change to \"stopped\" to be sure that the process is interrupted.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-9217\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-11-300x174.jpg\" alt=\"Stop of Zigbee2MQTT\" width=\"300\" height=\"174\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-11-300x174.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-11-600x348.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-11-1024x595.jpg 1024w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-11-768x446.jpg 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-11.jpg 1040w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Jinstalle_physiquement_le_ZBT-2\"><\/span>3. I physically install the ZBT-2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Choose a location away from sources of electromagnetic interference such as microwaves, Wi-Fi routers or power switching. Position the antenna vertically for optimal radio signal coverage. Plug in the <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a> USB-C on your Home Assistant Green (version 2025.10.1 or higher). <strong>Unplug the old ZBT-1 before connecting the new one to avoid port conflicts.<\/strong> The status LED lights up to confirm the detection.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-9209\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-1-1-300x126.jpg\" alt=\"Detection of ZBT-2\" width=\"300\" height=\"126\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-1-1-300x126.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-1-1.jpg 343w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>In <strong>Settings \u2192 Devices and Services<\/strong>, on <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a> appears automatically. Click on \u2018Add integration\u2019 to launch the wizard.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-9210\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-2-300x215.jpg\" alt=\"Addition of ZBT-2\" width=\"300\" height=\"215\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-2-300x215.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-2.jpg 350w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Select \"Zigbee\" as the main protocol.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-9212\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-4-300x186.jpg\" alt=\"Choice of the Zigbee protocol\" width=\"300\" height=\"186\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-4-300x186.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-4.jpg 481w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Go for \u2018Custom\u2019 to access the dedicated migration wizard.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-9218\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-13-300x175.jpg\" alt=\"Migration Assistant\" width=\"300\" height=\"175\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-13-300x175.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-13.jpg 432w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Select \"Other\" since you are using Zigbee2MQTT as your stack.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-9214\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-6-300x162.jpg\" alt=\"Choice Zigbee2MQTT\" width=\"300\" height=\"162\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-6-300x162.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-6-600x324.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-6.jpg 614w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Jidentifie_le_port_serie_stable_du_ZBT-2\"><\/span>4. I identify the stable serial port of the ZBT-2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The migration wizard does not offer an automatic tool for Zigbee2MQTT, so manually identify the serial port. Go to <strong>Settings \u2192 System \u2192 Hardware \u2192 All Hardware<\/strong>.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9222\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-16.jpg\" alt=\"List of equipment\" width=\"481\" height=\"552\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-16.jpg 481w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-16-261x300.jpg 261w\" sizes=\"auto, (max-width: 481px) 100vw, 481px\" \/><\/p>\n<p>Always choose the path by unique ID (e.g. <em>\/dev\/serial\/by-id\/usb-Nabu_Casa_ZBT-2_10B41DE59878-if00<\/em>), because it remains stable even after restarting, unlike generic ports like \/dev\/ttyACM0 that can change.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9223\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-17.jpg\" alt=\"ZBT-2 Serial Port\" width=\"557\" height=\"712\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-17.jpg 557w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-17-235x300.jpg 235w\" sizes=\"auto, (max-width: 557px) 100vw, 557px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Je_configure_et_relance_Zigbee2MQTT\"><\/span>5. I configure and relaunch Zigbee2MQTT<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Go back to <strong>Home Assistant \u2192 Settings \u2192 Add-ons \u2192 Zigbee2MQTT \u2192 Configuration tab<\/strong>. Replace the old port with the ID path identified and <strong>increase the baudrate to 460800<\/strong> (instead of 115200 for the ZBT-1). This higher setting takes full advantage of the speed of the new MG24 chipset for smoother, more responsive communication.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9226\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-18-1.jpg\" alt=\"Configuration Zigbee2MQTT\" width=\"1020\" height=\"716\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-18-1.jpg 1020w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-18-1-600x421.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-18-1-300x211.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-18-1-768x539.jpg 768w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/><\/p>\n<p>Save, then restart Zigbee2MQTT. The controller resets automatically, and all devices reconnect within minutes with significantly improved responsiveness.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9227\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-19.jpg\" alt=\"Zigbee2MQTT connected\" width=\"1033\" height=\"596\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-19.jpg 1033w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-19-600x346.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-19-300x173.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-19-1024x591.jpg 1024w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2025\/11\/zbt2-19-768x443.jpg 768w\" sizes=\"auto, (max-width: 1033px) 100vw, 1033px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Mon_avis_final_apres_migration\"><\/span>My final opinion after migration<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Migration to the <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a> is a natural evolution for any Zigbee installation under Home Assistant. At the initial date of this test, ZBT-1 remained an excellent and reliable product. <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a> did not yet bring sufficiently dramatic gains to justify a systematic replacement among all users. If you are new to home automation or investing in a first controller, go for it without hesitation. <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a> thanks to its simplicity of installation, superior performance and durability with future standards, while preserving privacy via a 100-point control% local.<\/p>\n<p>However, the ZBT-1 remains an excellent low-cost promotional or second-hand option: it will survive several more years without problem for those who do not wish to spend for the <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a>.<\/p>\n<p><strong>Note of 26\/12\/2025<\/strong> : I finally switched to ZBT-1 because, at the time of the in-depth tests, the <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/nabu-casa-adaptateur-usb-zigbee-home-assistant-connect-zbt-2\/\" target=\"_blank\" rel=\"noopener\">ZBT-2<\/a> There were still minor instabilities. Firmware and software updates are planned by Nabucasa, and everything is expected to work out quickly in the coming weeks.<\/p>","protected":false},"excerpt":{"rendered":"<p>Migrating the Zigbee Nabucasa ZBT-1 controller to the ZBT-2 Presentation of Nabucasa Nabucasa is the official hardware manufacturer dedicated to Home Assistant, an open source home automation platform that focuses on respecting data privacy. The company offers simple, reliable solutions that are fully compatible with Zigbee, Thread and [...]<\/p>","protected":false},"author":1,"featured_media":9202,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14,166,108,68],"tags":[],"class_list":["post-9201","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-domotique","category-retex","category-test-produit","category-zigbee-materiels"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/posts\/9201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/comments?post=9201"}],"version-history":[{"count":0,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/posts\/9201\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/media\/9202"}],"wp:attachment":[{"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/media?parent=9201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/categories?post=9201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/tags?post=9201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}