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Happy Chinese New Year!Elecrow will be on holiday from February 14–22 (GMT+8). You may still place orders of products and
manufacturing services as usual, and we will resume production and shipping by February 25.
To get this chip work, you will need an external 16MHz crystal or resonator, and a 5V power supply to create the minimum Arduino system. If you are not comfortable doing this, we recommend you purchase the Crowduino board that has all of these built into the board.