Arduino based Fire Alarm – Circuit and Working. Fig. 2 presents the circuit diagram for the fire alarm using a flame sensor and Arduino Nano. The system is powered by a step-down transformer (X1), a ...

Circuit and working. The circuit diagram of the multi-utility protection system for agricultural equipment is shown in Fig. 1. It comprises LCD (JHD162A), Arduino Uno, piezo buzzer, SIM900A GSM module ...

The Fire Alarm System is a project developed using Arduino microcontroller along with a GSM module, buzzer, and flame sensor. It is designed to detect the presence of fire and send an alert message to ...

Block diagram. Circuit Setup. Connecting the IR Flame Sensor to ESP32: Connect the digital output pin of the IR flame sensor module to GPIO pin 15 on the ESP32. Optionally, connect an LED to GPIO pin ...