Solar Panel Charge Controller Using Arduino Microcontroller

You can also use other arduino board like pro mini micro and uno.

Solar panel charge controller using arduino microcontroller.

12 volt solar panel outputs 17 20 volt. For example you have a 12 volt battery and you want to charge it with 12 volt solar panel. One can easily add the ideas from that project to this one. Project tutorial by abhi verma.

Specification of version 2 charge controller. You can also use other arduino board like pro mini micro and uno. Solar panel battery charge controller switching circuit. 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.

To be conservative my solar panel is rated at 6 v 500 mah. Use an arduino two small. Nowadays the most advance solar charge controller available in the market is maximum power point tracking mppt. I combine both the energy meter and charge controller in this design.

The microcontroller used is in this controller is arduino nano. Arduino pv mppt solar charger. Above is a generic arduino nano but the code will work on any arduino style microcontroller. 1 charge controller as well as energy meter 2.

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. The lithium ion battery is rated at 2000 mah. Microcontroller based solar pv system s charge controller inverter powerbank led lamp with menu based navigation system on lcd display. The microcontroller used is in this controller is arduino nano.

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. In your design you can use nano if you need the extra clock speed or possibly need to attach 5 v peripherals. Use of batteries with solar panels is usually not good. So to avoid failure of batteries before time solar charge controller is used.

The solar charge controller circuit diagram comprises of the following hardware components. But ordinary cheap ones are not efficient enough to use with maximum power from solar panels. This is a simplified version of my solar panel battery charge controller using arduino. 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. Therefore the microcontroller must be able to tolerate a variety of voltages as low as 3 7v and up to 6v dc.