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SparkFun will be closed May 25, 2015 for Memorial Day. Orders placed after 2pm on Friday the 22nd will ship out on Tuesday. 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 :(