Gas readings, device commands, and alert history in one operator view.

Built for a local ESP32 and MQ-2 setup: see current PPM, review safety state, and send device commands without leaving the dashboard.

Sensor node

ESP32_01

Gas channel

MQ-2

Poll cadence

5 sec

Preflight console

System snapshot

Ready for login

PPM trace

Representative signal path from sensor to dashboard

58 peak

Safety state

Normal

Bridge

MQTT ready

Read combustible gas concentration as the sensor stream updates.

Adjust relay, buzzer, LED, and OLED messages from the operator surface.

Filter historical readings and export alert logs for follow-up.