Ultrasonic sensor

3$

Arduino Uno

7$

Arduino Nano

6.5$

Jumper PCB board test Male to Male

0.76$

Jumper Male to Male

0.72$

LED Blue (3mm)

0.16$

LED Blue(5mm)

0.02$

LM7812 Voltage Regulator

0.15$

NE555N Timer IC

0.09$

2N2222 Transistor

0.02$

Crystal Oscillator

0.08$

Switch 3Pins

0.01$

Switch 2Pins

0.08$

3Pins SPDTT Toggle Switch

0.1$

Push Button/TACT Switch

0.02$