International Journal of Innovative Research in Science, Engineering and Technology (IJIRSET)
The mobile phones are play's vital role in the present communication world as well as day-to-day life. This paper describes the mobile charger using solar tracking system based on the coin. The mobile phone business is currently worth billions of dollars and supports of most number of features in every mobile phone with different operating systems. So to operate these mobile phones public charging is needed, and it should be useful to public. This is designed based on ATMEL 89c51 a 40-pin micro controller that does the countdown timings for a period of 3 minutes with LCD displays showing the actual time left.