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The ELEGOO UNO R3 puts SDA and SCL pins beside the AREF. Besides, there are two new pins placed near the RESET pin. The ELEGOO UNO R3 board can be powered via the USB connection. ELEGOO UNO R3 Project Super Starter Kit with Tutorial.
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.