Raspberry Pi: time-series dashboards with InfluxDB + Grafana
The self-hosted dashboard stack: InfluxDB stores sensor time series, Grafana graphs them. Install, wire an ESP32's MQTT feed, retention included.
Tag
#dashboard
2 tutorials
ESP32: WebSocket server, the right protocol for live dashboards
Build a WebSocket server on the ESP32 with ESPAsyncWebServer. Push sensor readings to a browser at 10 Hz without polling, with the ping/pong heartbeat that keeps the connection alive.