Quantity   Component name
1 × Arduino Pro Mini 3.3v 8MHz 5v 16MHz is also acceptable, but requires different firmware
1 × MH-SR602 MINI Motion Sensor
1 × SIM800C(L) GSM Module
1 × CP2102 MICRO USB to UART TTL Module
1 × DS3231 RTC Module For Raspberry Pi
1 × MOSFET in SOT-23 any >0.5A logic-level P-channel
1 × reed switch
1 × buzzer 3 to 5v
1 × electret microphone
1 × photoresistor