Quantity   Component name
1 × LM555C Clock and Timer ICs / Timer ICs
5 × BC547 Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs
4 × 1N5817-T Discrete Semiconductors / Diodes and Rectifiers
1 × capacitor 6.8uF
1 × capacitor 22uF
1 × capacitor 10nF
1 × resistor 470R
4 × resistor 10K
4 × resistor 1K
1 × relay 12V
4 × 1N4007 Discrete Semiconductors / Diodes and Rectifiers
4 × Relay 12V