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SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!

Member #409860

Member Since: February 16, 2013

Country: United States

  • What are the levels on pins other than 3v3 on the 5V version of this board? Are they all 3v3 level or are some of them 5V? I know in another breakout a logic pins were 3v3 except for DTR to compensate for the Arduino for example.

    I use this as a 5V power supply sometimes so would like to see if I could also use it in a 3v3 environment using on the GND, TXO, and RXI pins.

    Thanks! Karl

  • Thanks! One more question. Based on the description, are all pins other than VCC and 5V operating at 3.3v levels? If so, if I only use the 3.3v pin for power and never go near VCC/5V is there any reason for me to cut the trace to use this as a 3.3v board?

  • The product description indicates that it ships 3.3v by default. Is that correct?

    Also are dtr and vcc only broken out on the front? Looking at this for use on a breadboard and it looks like you’d have to pick the front or sides for headers.

    Thanks, Karl

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