Quantity   Component name
1 × RCWL-0516 Microwave radar sensor
1 × SIM800L GSM module
1 × 3.7V to 5V boost Converter Provide power for the modules
1 × Switch Key opereted
1 × Microcontroller Arduino pro mini 168 (5V-16M)
1 × 240VAC to 5VDC converter AC/DC power supply
1 × Li-ion Batteries 18650 Li-ion battery (any 3.7V Li battery)
1 × Li Battery Charger and Protection Module TP4056
1 × Piezo Siren Module From 5V siren
1 × Enclosure 3D printed
1 × LED Bar DIY using 8x0603 LEDs, 8x0805 resistors and 1xSN74HC595 Shift Register