Rain Alert Alarm DIY Science Project for Students

Rain Sensor Alarm DIY Project Kit for Science Fair Build your own Rain Alert Alarm with this complete DIY science project kit, specially designed for students and science fair enthusiasts. This project is a fantastic introduction to electronics, sensors, and alert systems. When the highly sensitive sensor module detects raindrops, it sends a signal to the circuit, activating a loud 5V buzzer. The kit is fully functional and includes a complete rechargeable power system, featuring an 18650 battery, a TP4056 charger, and a boost converter to safely power the 5V components from the 3.7V battery. It's a fun, educational, and practical project all in one. Package Contents: 1 x Rain Detection Sensor Module - To detect raindrops 1 x 18650 3.7V Li-Ion Battery - To power the project 1 x 1 Chamber 18650 Battery Holder Case - To hold the battery 1 x TP4056 1A Li-Ion Battery Charger Module - To recharge the battery 1 x 3.7V to 5V Mini Boost Step Up Module - To convert 3.7V to 5V for the sensor/buzzer 1 x 5V Active Buzzer - To make an alarm sound 1 x BC557 PNP Transistor - To switch the buzzer on from the sensor signal 1 x 1K Ohm Resistor - To limit current to the transistor base 1 x 2 Pin Rocker Switch (SPST) - To turn the project ON/OFF 1 x 1.6mm Slim 22AWG Cable - For connections and wiring 1 x Large Glue Gun Stick - To assemble and secure parts