I am looking to build a self sustaining arduino with a battery for night when its dark can anyone help me pick a pannel and battery that will last all night for up to 16 hours?
What is the average current draw of arduino?
Then multiply the current by the 16 hours of battery operation.
xxAmps * 16 hr = yy Amp-Hr is then the minimum capacity requirement of the battery.
The solar panel calculations works the same by using the total A-hr and sun light time to determine the average current output required.
The battery charging voltage (plus regulation drop) and current is used to chose a solar panel.
What battery and charger are you using?