This project presents a Solar-Based Wireless Charging and Battery Level Management System utilizing inductive coupling between two copper coils for efficient energy transfer. The system comprises a transmitter section and a receiver section. In the transmitter section, a 12V battery charged by a solar panel powers an Arduino Nano, which controls a MOSFET driver board connected to a copper transmitting coil. In the receiver section, a receiving coil is connected to an 8V battery managed by a PIC microcontroller. This section includes two voltage sensors, an LCD display, and a relay module. When the two coils are aligned, power is wirelessly transmitted from the transmitter to the receiver. Simultaneously, the voltage levels of both batteries are sensed and displayed on the LCD. This system demonstrates an effective method for wireless charging and real-time battery monitoring, offering a cleaner and more flexible solution for portable power applications.    

Features:

• Solar-powered wireless charging system
• Inductive power transfer using two copper coils
• Arduino Nano-based transmitter control
• MOSFET board for driving the transmitting coil
• PIC microcontroller in receiver section
• Real-time battery voltage monitoring
• Dual battery support: 12V (transmitter) & 8V (receiver)
• Two voltage sensors for accurate readings
• LCD display for showing both battery voltages
• Relay module for control operations

  Components used:

• Step down transformer 230v to 12volts, 3 amps.
• Pulse generator
• Two copper coils.
• Rechargeable battery.
• Solar Panel
• Charging circuit.
• Relay with driver
• Voltage sensor
• Arduino NANO microcontroller.
• PIC micro controller.
• Reset button.
• LED indicator.

Software’s used:

• Arduino IDE for dumping code into Micro controller.
• PIC kit 2 programmer for dumping code into PIC Micro controller.
• Express SCH for Circuit design.
• Embedded C programming.

  Block Diagram:  

video: