Greenhouse node
esp-c3-01 · ESP32-C3 / MQTT
Firmware signed-1.4.2
Beacon 21/min · baseline 21/min
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Independent project · current
IoT Security Monitor
Python- and cloud-oriented concept for real-time monitoring and anomaly detection across IoT devices, combining ESP32 embedded-security work with a simple analytics pipeline.
Fleet
4
Open alerts
2
Transport
MQTT + cloud analytics
Lab door contact
esp-door-02 · ESP32 / BLE+WiFi
Firmware signed-1.3.0
Beacon 8/min · baseline 8/min
Yard camera
cam-03 · RTSP / ONVIF
Firmware vendor-2024.11
Beacon 64/min · baseline 64/min
MQTT broker
broker-04 · Mosquitto / TLS
Firmware 2.0.20
Beacon 12/min · baseline 12/min
Anomaly and hardening findings
IOT-12highcam-03
Unsigned firmware and default ONVIF credentials still enabled on the yard camera.
IOT-13mediumbroker-04
Anonymous MQTT listener detected on 1883. Lab policy requires TLS 8883 only.
Concept
Python collector on the LAN (see labs/iot-security-monitor) tails MQTT topics, scores beacon rate with a simple z-score, and flags unsigned firmware or open brokers. The greenhouse ESP32-C3 is the noisy node in this demo so the detector has something to catch. This is a lab — traffic is simulated in the browser.