Hence you need to increase the surface area of your solar array by 3 22 times.
Solar panel arduino enough.
Arduino pro mini with no load draws less than 5ma.
For the solar panels i chose a 330 ohm burden which allows a maximum of 10a which is more than enough for a 1kw system.
There are lots of forums that discuss how to put the arduino in sleep mode so that it consumes 5ma or less.
But for this exercise we will use the 3 3 v pro mini.
In this system solar panel will move in the direction of sun from sun rise to sun set.
For the voltage measurement circuit i found as well a tutorial at openenergymonitor.
Our indoor lighting test earlier gave a reading of around 2 5v so connecting the two made the led light up.
For calculation of the burden resistors please check the link to the openenergymonitor building block.
Arduino pv mppt solar charger.
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.
It depends on what mode the arduino is in and what peripherals you have running.
But ordinary cheap ones are not efficient enough to use with maximum power from solar panels.
There is also a 5 volt arduino pro mini available that runs a 16 mhz clock.
We used a green led with a forward voltage of 2 0v meaning that it should light up as long as our solar panel can output at least 2 0v.
Before wiring the solar panel to the arduino we should do a test run using an led first.
Find these and other hardware projects on arduino project hub.