Elektroniikan perusteet 2 course project. If you have any questions about the project, feel free to message me.
Used parts:
Elegoo Uno R3 1
Breadboard 1
Led 2 (1 green, 1 red)
Resistor 2 (220 Ω) for the leds
Summer (active) 1
Ultrasound sensor (HC-SR04) 1
9 Volt battery 1 (can also be run with any other power source(change the resistors according to need))
batter cables 1
kaypad (4x4) 1
cables about 28
(icecream box) 1 (you can make it fancier)