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Note : the power should be stabilivolt 5-5.5V, and it cannot connect the solar board. when the motor connects the board, there is no difference of positive and negative. When testing, if the motor rotates toward the opposite direction of the light source, then change the motor wire position.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.