SparkFun will be closed Nov 26th and 27th for the Thanksgiving holiday. Orders placed after 2:00pm MT on the 25th will ship out Monday the 30th.

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??

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