rocker switch 2 pin 2 position switch with 20cm DuPont male cable 15x21mm

Slide switch for breadboard 3 pin  SS12D00G2 

24k 1/4w carbon film resistor

Metal Detector Kit Electronic Soldering Practice Kit Non-Contact Sensor Board Module Electronic Part Metal Detector DIY DC 3V-5V 60mm  

2k 1/4w carbon film resistor

ON-OFF, Latching, Black head - IC185 PLASTIC SWITCH - Black

ON-OFF, 3 Pin Round Light - IC131 Round Lighted Switch

ON-OFF, 6 Pin Light - IC101 Double Light Switch

2 Dip Switch

40 Pin PRC Socket

4N25

End stop switches