Unplug and Power Up: Build a Sustainable Solar Charger and Launch Your Business Dream

Project Title: सूर्य ऊर्जा से चलने वाला मोबाइल चार्जर(Solar Mobile Charger)

Materials:

• सोलर पैनल (Solar Panel) - 5V, minimum 100mA (milliamperes) - Converts sunlight into electricity.
• डायोड (Diode) - 1N4001 or similar - Allows current to flow in one direction only, protecting the circuit.
• वोल्टेज रेगुलेटर (Voltage Regulator) - 7805 IC - Regulates the voltage output to 5V, suitable for mobile charging.
• USB पोर्ट (USB Port) - Female connector for mobile phone charging.
• तार (Wire) - Red, black, and green for connecting components.
• ब्रेडबोर्ड (Breadboard) (Optional) - Reusable prototyping platform for easy circuit assembly.
• स्विच (Switch) (Optional) - To control power on/off (recommended for safety and battery preservation).
• छोटा डिब्बा (Chota Dibba) (Optional) - Small box to house the completed circuit for a portable charger.

Tools:

• तार काटने का औजार (Wire Cutter) - For cutting wires to desired lengths.
• तार छीलने का औजार (Wire Stripper) - For removing insulation from wire ends.
• सोल्डरिंग आयरन (Soldering Iron) (Optional) - For permanent connections (use adult supervision if necessary).
• ग्लू गन (Glue Gun) (Optional) - For securing components in a project box (use adult supervision if necessary).

Safety Precautions:

• Adult supervision is recommended for soldering and using electrical tools.
• Handle components carefully to avoid damage.
• Double-check connections before powering on the circuit.
• Do not overload the charger with devices exceeding its capacity.
• Direct sunlight is crucial for efficient solar charging.

Project Steps (Hindi and English):

1. सोलर पैनल को कनेक्ट करें (Connect the Solar Panel):

   • Connect the positive wire of the solar panel to the positive terminal of the breadboard (or directly to the voltage regulator if not using a breadboard).
   • Connect the negative wire of the solar panel to the negative terminal of the breadboard.

2. डायोड जोड़ें (Add the Diode):

   • Identify the banded end of the diode (cathode).
   • Insert the diode onto the breadboard with the banded end (cathode) connected to the positive output of the solar panel and the non-banded end (anode) to a new row on the breadboard.

3. वोल्टेज रेगुलेटर लगाएं (Attach the Voltage Regulator):

   • Locate the pins of the 7805 IC: input (Vin), ground (GND), and output (Vout).
   • Connect the input (Vin) pin of the voltage regulator to the positive output of the diode (the row where the non-banded end is connected).
   • Connect a wire from the ground (GND) pin of the voltage regulator to the negative terminal of the breadboard.

4. USB पोर्ट जोड़ें (Connect the USB Port):

   • Identify the positive and negative pins of the USB port (usually red and black wires).
   • Connect the positive pin of the USB port to the output (Vout) pin of the voltage regulator.
   • Connect the negative pin of the USB port to the negative terminal of the breadboard.

5. स्विच लगाएं (Optional: Add a Switch): (Recommended for safety and battery preservation)

   • Introduce a switch into the positive wire connecting the solar panel to the voltage regulator. This allows you to turn the charger on and off.

6. परिक्षण करें (Testing):

   • Place the solar panel in direct sunlight.
   • Connect your mobile phone to the USB port.
   • If the phone charges, your solar mobile charger is working!

Additional Notes:

• The output current of the charger depends on the solar panel's capacity. Larger panels provide more current for faster charging.
• Consider incorporating a battery (with proper charging circuit) for nighttime or cloudy weather charging.
• A project box can be used to house the completed circuit for