I have a truck that does deliveries for me but I want to know where all my customers are. Now all I could think of is a thing that you can give to the driver and tell him "When you stand in front of the costumer's door press the green button" so then this thing would remember his coordinates and all the customers names so when I plug it into my computer it can give me the coordinates of each customer and I can put them into Google-Earth.
Were can I get such thing and what is it called?
Thanks in advance
Were can I get such thing and what is it called?
Thanks in advance