1, Logic DC Jack(Mainboard) from Techbox Tricks ×1
2, Grove – Universal 4 Pin Buckled Cables ×2
3, Grove – Touch Switch ×1
4, Grove – Buzzer ×1
5, 9V to Barrel Jack Adapter ×1
6, 9V Battery ×1
7, Colored Papers
Step 1 Connect thetouch switch with logic DC jack (left side) using one universal 4 pin buckledcable.
Step 2 Connect thebuzzer with logic DC jack (right side) using one universal 4 pin buckled cable.
Step 3 Slide switchof the logic DC jack to the right “AND” place.
Step 4 Connect theDC battery with logic DC jack using the barrel jack adapter.
Step 5 Make a buswith colored papers, put the buzzer grove into it, and stick together.
Finally,a bus with horn is completed and it will sound when you touch the touch switchfrom above.