Full-MQTT-Demo

CM Full MQTT Demo (Full-MQTT-Demo)

This example focuses on the optional MQTT module (cm::MQTTManager) and its integration into the ConfigurationsManager Web UI.

What it demonstrates

• Core settings templates: WiFi + System + NTP via cm::CoreSettings
• Settings-driven startup via ConfigManager.startWebServer() (DHCP/static/AP fallback)
• MQTT module usage via explicit include: #include "mqtt/MQTTManager.h"
• MQTT connection state + last message visible in the Runtime view

Dependency

This example adds:

• knolleary/PubSubClient@^2.8

How to run

From the repo root:

pio run -d examples/Full-MQTT-Demo -e usb
pio run -d examples/Full-MQTT-Demo -e usb -t upload

First start / AP mode

If no SSID is configured yet, the device starts in AP mode. Open the printed AP URL from Serial (usually http://192.168.4.1) and configure WiFi via the Web UI.

MQTT configuration

After WiFi is configured:

• Set MQTT: Enable = true
• Configure MQTT: Server + MQTT: Port
• Optional: MQTT: Username + MQTT: Password
• Optional: MQTT: Subscribe Topic (example: cm/demo/#)

Then watch the MQTT runtime card for status updates.

Screenshots