Solar Panel Charge Controller Using Arduino Microcontroller

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.

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

So to avoid failure of batteries before time solar charge controller is used. The microcontroller used is in this controller is arduino nano. Specification of version 2 charge controller. This is a simplified version of my solar panel battery charge controller using arduino.

For example you have a 12 volt battery and you want to charge it with 12 volt solar panel. 12 volt solar panel outputs 17 20 volt. Nowadays the most advance solar charge controller available in the market is maximum power point tracking mppt. Arduino pv mppt solar charger.

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. This design is suitable for a 50w solar panel to charge a commonly used 12v lead acid battery. The solar charge controller circuit diagram comprises of the following hardware components. 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. Microcontroller based solar pv system s charge controller inverter powerbank led lamp with menu based navigation system on lcd display. One can easily add the ideas from that project to this one. Solar panel battery charge controller switching circuit.

Project tutorial by abhi verma. 1 charge controller as well as energy meter 2. 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. There is also a 5 volt arduino pro mini available that runs a 16 mhz clock.

Above is a generic arduino nano but the code will work on any arduino style microcontroller. You can also use other arduino board like pro mini micro and uno. In your design you can use nano if you need the extra clock speed or possibly need to attach 5 v peripherals. But ordinary cheap ones are not efficient enough to use with maximum power from solar panels.

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. 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.