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Hello there friend! SparkFun will be closed on 8/17/2018 @2pm for a company event. We will not be offering our normal Friday tour or Local Pickups during this time. We will resume normal operations on Monday 8/20/2018. Any orders placed after 2pm MT on 8/17/2018 will be processed when we resume normal operations. Have a great day!

Member #496045

Member Since: December 5, 2013

Country: United States

  • I set up my Arduino Micro with this step up powered by 2 AA batteries and plugged into the 5V and GND. Can I leave it plugged into 5V and GND with the batteries switched off when I plug the Arduino into the USB or would the 5V output of the Arduino cause problems in the step up?

    AA Batteries –/–> 5V DC Step Up —-> Arduino 5V & GND <—- Arduino Reg <—- USB

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