Fire Alarm Science Project Without Arduino

DIY Flame Detection Alarm Kit Without Arduino This fire alarm science project is a complete DIY kit designed for detecting flames using a 4-pin flame sensor and triggering a loud buzzer. Ideal for students, hobbyists, or science fair projects, this circuit runs without any Arduino, making it beginner-friendly and affordable. Powered by a rechargeable 18650 battery with a step-up module to ensure stable 5V output. Great for practical demonstrations and safety learning purposes. Specifications: 4-Pin Flame Sensor Module (5V) BC557 PNP Transistor for signal boosting 1k Ohm Resistor (0.25W) for base current control 5V Active Buzzer for sound alert 18650 3.7V Li-Ion Rechargeable Battery Single Cell 18650 Battery Holder TP4056 Battery Charging Module (1A) Mini Boost Converter (3.7V to 5V Output) SPDT Rocker Switch (On/Off/On) 22AWG Cable for wiring