Quantity   Component name
1 × 2N2222 https://www.utsource.net/sch/2N2222
1 × BC558 view more: https://www.utsource.net/sch/BC558
1 × 220K Resistor https://www.utsource.net/sch/220K%20Resistor
1 × 5V Relay https://www.utsource.net/sch/5V%20Relay
1 × 1N4001 Diode https://www.utsource.net/sch/1N4001%20Diode