Solar Panel Charge Controller Using Arduino Microcontroller

Above is a generic arduino nano but the code will work on any arduino style microcontroller.

Solar panel charge controller using arduino microcontroller.

12 volt solar panel outputs 17 20 volt. Therefore the microcontroller must be able to tolerate a variety of voltages as low as 3 7v and up to 6v dc. The solar charge controller circuit diagram comprises of the following hardware components. Solar panel battery charge controller switching circuit.

If you decide to use a 5v arduino simply add a boost converter after the 3 3v supply amazon model xl6009 dc to dc converter. The lithium ion battery is rated at 2000 mah. The microcontroller used is in this controller is arduino nano. Microcontroller based solar pv system s charge controller inverter powerbank led lamp with menu based navigation system on lcd display.

Use an arduino two small. This design is suitable for a 50w solar panel to charge a commonly used 12v lead acid battery. The microcontroller used is in this controller is arduino nano. This is a simplified version of my solar panel battery charge controller using arduino.

I combine both the energy meter and charge controller in this design. Given these we must choose a solar panel capable of at least 5 7 v 164 mah and a lithium battery rated at 1044 mah. Arduino pwm solar charge controller v 2 02 to solve this problem i made this new version charge controller so that anyone can use it without changing the hardware and software. Specification of version 2 charge controller.

For example you have a 12 volt battery and you want to charge it with 12 volt solar panel. This design is suitable for a 50w solar panel to charge a commonly used 12v lead acid battery. The solar charger s load pins will provide 3 7v battery power when no solar power exists but will be powered directly from the solar panel if it s plugged in and sunny. But ordinary cheap ones are not efficient enough to use with maximum power from solar panels.

Project tutorial by abhi verma. At89c2051 microcontroller serial adc0831 voltage regulator 7805 mosfet lcd display and few discrete components such as solar panel rechargeable battery dusk to dawn sensor charge control and load control. There is also a 5 volt arduino pro mini available that runs a 16 mhz clock. So to avoid failure of batteries before time solar charge controller is used.

To be conservative my solar panel is rated at 6 v 500 mah. You can also use other arduino board like pro mini micro and uno. Use of batteries with solar panels is usually not good. 1 charge controller as well as energy meter 2.

Arduino pv mppt solar charger. In your design you can use nano if you need the extra clock speed or possibly need to attach 5 v peripherals.