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.

Use an arduino two small. 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. This is a simplified version of my solar panel battery charge controller using arduino.

Solar panel battery charge controller switching circuit. Nowadays the most advance solar charge controller available in the market is maximum power point tracking mppt. There is also a 5 volt arduino pro mini available that runs a 16 mhz clock. Specification of version 2 charge controller.

The lithium ion battery is rated at 2000 mah. You can also use other arduino board like pro mini micro and uno. This design is suitable for a 50w solar panel to charge a commonly used 12v lead acid battery. I combine both the energy meter and charge controller in this design.

But ordinary cheap ones are not efficient enough to use with maximum power from solar panels. Project tutorial by abhi verma. To be conservative my solar panel is rated at 6 v 500 mah. 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.

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. 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 of batteries with solar panels is usually not good. 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.

1 charge controller as well as energy meter 2. The microcontroller used is in this controller is arduino nano. The solar charge controller circuit diagram comprises of the following hardware components. 12 volt solar panel outputs 17 20 volt.

This design is suitable for a 50w solar panel to charge a commonly used 12v lead acid battery. Arduino pv mppt solar charger. Therefore the microcontroller must be able to tolerate a variety of voltages as low as 3 7v and up to 6v dc. You can also use other arduino board like pro mini micro and uno.

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 microcontroller used is in this controller is arduino nano.