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About product and suppliers:
        Alibaba.com offers 1,677 arduino uno r3 products. About 44% of these are integrated circuits, 38% are other electronic components, and 1% are other consumer electronics. 

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

There are 1,677 arduino uno r3 suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% 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, 16 with Other certification.