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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 #412246

Member Since: February 23, 2013

Country: United States

  • I bought 2 of these. One is connected to arduino Uno and acts as a reciever the other connects to arduino nano and acts as transmitter. The problem is that they can’t communicate with each other using the 3.3V coming from the arduinos. Only when connecting an external 3.3V for any of the RFM22 I get great communication. Is that makes sense??

No public wish lists :(