Solar Panel Charge Controller Using Arduino Microcontroller

This design is suitable for a 50w solar panel to charge a commonly used 12v lead acid battery.

Solar panel charge controller using arduino microcontroller.

In your design you can use nano if you need the extra clock speed or possibly need to attach 5 v peripherals. For example you have a 12 volt battery and you want to charge it with 12 volt solar panel. Use of batteries with solar panels is usually not good. Arduino pv mppt solar charger.

This is a simplified version of my solar panel battery charge controller using arduino. 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. You can also use other arduino board like pro mini micro and uno.

Specification of version 2 charge controller. The microcontroller used is in this controller is arduino nano. I combine both the energy meter and charge controller in this design. Microcontroller based solar pv system s charge controller inverter powerbank led lamp with menu based navigation system on lcd display.

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. You can also use other arduino board like pro mini micro and uno. Above is a generic arduino nano but the code will work on any arduino style microcontroller.

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. The lithium ion battery is rated at 2000 mah. 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. There is also a 5 volt arduino pro mini available that runs a 16 mhz clock. 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. The microcontroller used is in this controller is arduino nano.

Therefore the microcontroller must be able to tolerate a variety of voltages as low as 3 7v and up to 6v dc. One can easily add the ideas from that project to this one. 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.

Nowadays the most advance solar charge controller available in the market is maximum power point tracking mppt. Use an arduino two small.