With the existing push in the direction of sustainable, clean sources of power, it is no surprise that solar power has become one of the most popular alternative energy sources. Solar power is amazing. On average, every square meter of Earth’s surface receives 164 watts of solar energy. In other words, you could stand a really powerful (150 watt) table lamp on every square meter of Earth’s surface and light up the whole planet with the Sun’s energy! Or, to put it another way, if we covered just one percent of the Sahara Desert with solar panels, we could generate enough electricity to power the whole world. That’s the good thing about solar power: there’s an awful lot of it—much more than we could ever use. Free and available everywhere, the power of the sun can be employed to power everything like cell phones and MP3 player. The sun’s energy is usually harvested through solar panels that are made up of photovoltaic cells. These cells can convert the sun’s power into electricity that can be used for a number of purposes. For private use, a handheld solar hybrid charger can be employed to recharge little device for instance a MP3 player, a cell phone, or a camera.

The main features of this project are:

1. Mobile can be charged even while travelling.
2. Simple Circuitry.
3. Easy to operate.

The major building blocks of this project are:

1. Solar cell/plate.
2. Regulator
3. Mobile battery

Block diagram:

video:

A piezoelectric sensor is a device that uses the piezoelectric effect, to measure changes in pressure, acceleration, temperature, strain, or force by converting them to an electrical charge. The prefix piezo- is Greek for ‘press’ or ‘squeeze’.

The main controlling part of the whole system is Micro controller. In this project Piezo sensors, LCD are interfaced to micro controller section. Micro controller reads the values from the piezo sensors. Energy values displayed on the LCD which is interfaced with the controller unit. The energy from the sensors is stored by using battery, and it is helpful to charge the mobile.

Major features of this project:

1. Efficient and low-cost design.
2. Low power consumption.

Major blocks present in this system:

1. Battery
2. Micro controller
3. Piezo sensors
4. Charging circuit
5. LCD

Software’s used:

1. Arduino IDE
2. Express SCH for Circuit Design

Block diagram:

video: