Solar Panel Charge Controller Using Arduino Microcontroller

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.

Solar panel charge controller using arduino microcontroller. Therefore the microcontroller must be able to tolerate a variety of voltages as low as 3 7v and up to 6v dc. Nowadays the most advance solar charge controller available in the market is maximum power point tracking mppt. 1 charge controller as well as energy meter 2. Arduino pv mppt solar charger.

So to avoid failure of batteries before time solar charge controller is used. I combine both the energy meter and charge controller in this design. The solar charge controller circuit diagram comprises of the following hardware components. The lithium ion battery is rated at 2000 mah.

Specification of version 2 charge controller. But ordinary cheap ones are not efficient enough to use with maximum power from solar panels. 12 volt solar panel outputs 17 20 volt. 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.

Solar panel battery charge controller switching circuit. In your design you can use nano if you need the extra clock speed or possibly need to attach 5 v peripherals. 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. Use an arduino two small.

Project tutorial by abhi verma. There is also a 5 volt arduino pro mini available that runs a 16 mhz clock. 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. 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. 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. This is a simplified version of my solar panel battery charge controller using arduino. The microcontroller used is in this controller is arduino nano.

You can also use other arduino board like pro mini micro and uno. To be conservative my solar panel is rated at 6 v 500 mah. 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.

Use of batteries with solar panels is usually not good. Microcontroller based solar pv system s charge controller inverter powerbank led lamp with menu based navigation system on lcd display.