Quantity   Component name
1 × HC-SR04 Ultrasonic Sensor module
1 × Attiny2313 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × USBport You can use any type that you want..
2 × LEDs in your desired colours..
1 × Button That makes Click! :D
1 × 16mhz Quarz
6 × Resistors
2 × Diodes any type that has a voltage drop of about 0.6v
3 × Capacitors 1x 4.7uf and 2x between 22pf-27pf