Quantity   Component name
1 × Arduino uno https://www.utsource.net/sch/Arduino%20uno
1 × buzzer https://www.utsource.net/sch/buzzer
1 × ultrasonic sensor https://www.utsource.net/sch/ultrasonic%20sensor
1 × jumper wires https://www.utsource.net/sch/jumper%20wires
1 × programming cable https://www.utsource.net/sch/programming%20cable