Quantity   Component name
1 × Sensor de Gás MQ-2 Inflamável e Fumaça Semiconductors and Integrated Circuits / Misc. Semiconductors and Integrated Circuits
1 × LED RGB 4 Pinos Catodo 5mm
1 × D1 mini V2.2.0 WEMOS-ESP8266 WIFI
1 × Buzzer
1 × Resistor 150 ohm
2 × Resistor 100 ohms
1 × Resistor 330 ohms