Mist Controller Dashboard

PWA dashboard for monitoring and controlling the mist-controller ESP8266 device (temperature, humidity, mist/LED relay status).

Live dashboard: https://volskyi.github.io/mist-controller-dashboard/

What it does

• Live temperature/humidity readings, RSSI, online/offline status
• 24h high/low and a "last 60 min" sparkline (1-point/min resolution, hover for crosshair+tooltip)
• Mist relay control: on / off / auto (auto = maintain a target humidity)
• LED relay control: on / off / auto (auto = follow a 4-slot daily schedule, editable in-app)
• Installable as a PWA (add to home screen); service worker uses network-first caching so updates show without a manual cache clear

How it connects

Plain static site (index.html + app.js + mqtt.min.js, no build step). Connects directly from the browser over MQTT-over-WebSockets (WSS) to a HiveMQ Cloud broker:

• Host: 35902b51ff004900a09ea8c4c2875495.s1.eu.hivemq.cloud, port 8884, path /mqtt
• On first load it prompts for the MQTT username/password (same credentials the firmware uses to connect); these are then cached in the browser's localStorage (mist_user / mist_pass) so you're not asked again on that device
• All app state comes from retained MQTT topics published by the firmware — see the mist-controller README for the full topic reference

Deploying

Static site served via GitHub Pages from main branch, root path — pushing to main deploys automatically.