getting started Answered

hi,every body its my first post here .
i like this site a lot .i want to say that i have to do a project soon but i don't know what to do
am good at programming with microcontroller  but  i was surpresid that no one here use it i mean you use ready things and hacked ones.
could any one help me to choose a good project

i want also to ask about the charging .if i want to make a charger for many things i saw some project in this site from usb port to charge a mobile you calculate the voltage but the current>???? i mean this will not burn the mobile or anything how do you ensure that the current is suitable?


i want also to ask about the solar cell?how we can create it from scratch or where can i find a ready one?if i don't want to buy it



thanx sorry about my bad english