Project Topics

Engineering Projects


Our project mainly aims in charging the cell phones through solar power based on coin system


The main idea behind this project is that the cell phones can be charged based on the coins inserted into the box and the no of coins inserted are indicated by LCD display. The power to charge the phones are obtained through solar energy.

The various cell phone modules (e.g. Samsung, nokia etc) are there which can be selected by the user to deliver appropriate voltage output to the corresponding model.

We can select the model of our phone through the keypad arrangement provided with the system, when the particular key of the related cell phone is pressed that corresponding cell phones get charged.

The power required to charge the phones are obtained from solar energy. The input is given to micro controller section and this controls all the other process