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USB explorer 3.3V power pin

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The USB Explorer from Sparkfun seems to be the preferred way to access the xbee pins on a breadboard.
Can you explain how the device can be powered when the USB is NOT plugged in? There is a 5V pin and a 3.3V pin. I would assume that either can be used -- but not both. Also, I notice that when the 3.3V pin is used for power, that the LEDs do not function to show tx, rx, power. Is this correct? Would these lights work if I used the 5V pin for input?

Also, can you state how the remaining pins such as RTS, DTR, etc should be set (float, high, low).
asked Oct 26, 2015 in RF Solutions and XBee by jekain314 New to the Community (5 points)

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1 Answer

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As the board you are referring to is manufactured by Spark Fun Electronics, I would strongly recommend asking Spark Fun this question.
answered Oct 27, 2015 by mvut Veteran of the Digi Community (13,087 points)
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