Quantity   Component name
1 × 555 timer IC
1 × IR sensor
2 × BC547 Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs
2 × 10k resistor
2 × 1k resistor
1 × 220k resistor
1 × 220nf cap
1 × 5-volt relay
1 × diode 1n4007