Button

it will be able to sense modern and will light up and make sound based on it

Step 1:

Go to maker case.com and copy the dimensions to what is shown in photo then cut holes for sensors and then cut

Step 2:

Grab your ultrasonic sensor and plug in wires as shown and then grab the argrino and plug in wires

Step 3:

Tape the sensors into the holes and then wire them into the argino as shown

Step 4:

once connected use it and test Wirth computer too see if lights up

Step 5:

Put the mini bred bored in and plug iun wires as shown in photo after plugging in and then wire it to all of the other ones in the box