Of course you can use a vibrator motor in place of buzzer and advance a lot more using your creativity. The whole project has been designed on eagle. The same circuit prototype can be made using a breadboard or zero pcb.
smart and green led leuchten
solar energy roof orientation
small wooden table for patio
small plastic water barrels
smart siding 9
sneaking out through the roof
small wood stove fireplace inserts
small bedroom layout single bed
