PIR HC-SR501 Motion Sensor

Infrared Remote Receiver Module

Piezoelectric Vibration Sensor (Analog)

MQ-5 LPG/Natural Gas Module

MQ-3 Alcohol Gas Module

MQ-7 CO Gas Module

MQ-6 LPG/Butane Module

MQ-2 Flammable Gas/Smoke Module

MQ-9 CO/Flammable Gas Module

MQ-8 Hydrogen Gas Module

MQ-4 Methane Gas Module

MT3608 Step-Up Boost Converter (Type-C)