I am try to add a solar panel and rain drop detector.

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I also found:

For Arduino L9110S H-Bridge Stepper Motor Dual Dc Motor Driver Controller Board

https://www.ebay.co.uk/itm/For-Arduino-L9110S-H-Bridge-Stepper-Motor-Dual-Dc-Motor-Driver-Controller-Board/382067633549?epid=1437337515&hash=item58f5016d8d:g:zGoAAOSwMVdYISg-

I've been look up about Shield but not sure if it need one.