Upgraded Home Assistant from 2026.2.2 to 2026.3.3 last night and it stopped reading the status of my zigbee devices via MQTT.

I'm running HAOS in a proxmox VM and zigbee2mqtt 2.1.1 in a docker container hosted in a different physical with a ConBee2 radio.

To check connectivity issues I had the integration listen for # and saw state updates for my zigbee sensors.

What finally fixed it was going into zigbee2mqtt's settings and disabling and re-enabling Home Assistant integration.

#homeAssistant #zigbee2mqtt @homeassistant #mqtt

🔎 **MQTT hoạt động như thế nào trong IoT?**

Thay vì kết nối phức tạp, MQTT dùng mô hình cực thông minh:
👉 Publish / Subscribe

📌 Nghĩa là:
Client gửi dữ liệu 📤
Broker tiếp nhận 🧠
Broker phân phối 📡

💥 Nhờ vậy:
✔️ Giảm tải hệ thống
✔️ Tối ưu băng thông
✔️ Tăng độ ổn định

🚀 Đây chính là lý do MQTT trở thành “cầu nối” giữa IoT và Cloud!

👉 Xem chi tiết: https://nhanhoa.com/tin-tuc/mqtt-la-gi.html

#nhanhoa #mqttlagi #iotplatform #cloud #mqtt

So a small thing on #AI #llm code generation.

Something I’ve actually found it useful for, and feel comfortable using it for, is throwing together quick throwaway tooling for testing or debugging. Last night I was chasing down an issue in some #MQTT messages and being able to throw together a quick TUI that filtered out the noise to find just what I was looking for was very useful.

If I was ever going to turn that tool into something more permanent I’d rewrite it though.

Um não tão novo post: do Blink para o controle remoto real — ESP32 + MQTT + Mosquitto local + app no celular.

O modelo pub/sub do MQTT encaixa bem em embarcados: o ESP32 não abre porta, não conhece o IP do cliente, só mantém conexão com o broker e reage a mensagens. O firmware fica event-driven, sem polling.

Documentei a arquitetura, o código completo em C com ESP-IDF, e os problemas que apareceram.

https://www.riverfount.dev.br/posts/controlando-hardware-pelo-celular-esp32-mqtt/

#ESP32 #MQTT #IoT #Embarcados #C

Moin Gemeinde,

Wenn man mit #homeassistant anfängt, hat man die Wahl bei Zigbee zwischen #zha (einfache Installation) oder #mqtt (nicht ganz so Einfach als Anfänger). Was man aber vorher Wissen sollte, dass man #zigbee2mqtt nehmen sollte, wenn man schon #huelampen besitzt. Denn bei #mqtt erhalten die Lampen auch ein Update. Habe ich in keinem Video gehört, zumindest bei denen die Ich mir angeschaut habe.

Current status: Writing an #MQTT client in C to integrate specifically with #Meshtastic

I don't know what this program is gonna do in the long term. In the short term, I'm looking to build a purpose-driven program for injecting malicious payloads and performing other devious tasks.