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About product and suppliers:
        Alibaba.com offers 1,709 arduino uno r3 products. About 42% of these are integrated circuits, 39% are other electronic components, and 1% are wireless networking equipment. 

A wide variety of arduino uno r3 options are available to you, such as drive ic, logic ics, and voltage regulator. You can also choose from free samples, paid samples. 

There are 1,711 arduino uno r3 suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and United States, which supply 99%, 1%, and 1% of arduino uno r3 respectively. 

Arduino uno r3 products are most popular in North America, Western Europe, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 37 with ISO9001, 12 with Other certification.