Abstract: The “IOT Based Smart Weighing System” is of large scope project designed to make safety and effective operations. The system engages the services of various sensors and cloud connectivity to perform the parameters such as load weighing, air quality and fire hazards. Firstly, a load sensor is used to detect the weight of item to be placed. This sensor connected with an ESP8266 microcontroller which will transmit the data to Blynk cloud platform. In addition to this, the project also deals with air quality sensor to detect the harmful air quality levels such as Carbon monoxide or volatile organic compounds when it is detected a buzzer is triggered to alert and for create safe working environment. Furthermore, the system also had a fire detection sensor which is used to detect the abnormal increase in temperature or presence of smoke if it is detected it will activate the buzzer to alert the surroundings. Overall, this system approaches the safety and efficiency activity by using sensors and cloud connectivity to create secure environment.

Keywords: ESP8266/Node MCU microcontroller, Weighing load cell, MQ 135 Air quality/Gas detector, Flame sensor, Arduino IDE.

| DOI: 10.17148/IARJSET.2024.11522