Low Cost IOT Based Smart Monitoring System

Modern surveillance systems with motion detection are widely available. This paper presents a costeffective prototype for a smart monitoring system designed using Espressif’s ESP32 microcontroller. The system incorporates motion-triggered image capture technology alongside a Passive Infrared (PIR) sensor.The monitoring system utilizes a PIR sensor and vibration sensor to detect motion and activate an ESP32 CAM module, which captures images of detected subjects. These images are then securely transmitted to a designated Telegram account over a continuous Wi-Fi connection. Additionally, a DHT11 sensor is integrated to measure environmental parameters like temperature and humidity, with the collected data uploaded to the ThingSpeak platform for remote monitoring and analysis. A connected bulb can also be controlled on demand, reducing power consumption and increasing energy efficiency. This intelligent system not only provides enhanced security but also contributes to sustainable energy management.