Quantity   Component name
1 × DE-9F solder-type connector Connectors and Accessories / D-Subminiature Connectors
2 × DE-9M solder-type connector Connectors and Accessories / D-Subminiature Connectors
1 × Small 5V 180 degree servo Servo
1 × Red LED Light-emitting Diode
1 × 330 Ohm resistor Resists the flow of current
1 × 5V microcontroller board Arduino, etc.
1 × Pack of breadboard wire Common wire is sufficient
1 × Soldering iron & solder Optional. Crimp-style connectors may also prove useful.