In SX Microcontrollers, SX/B Compiler and SX-Key Tool, originator99 wrote:

I am going to prototype  a project using the SX28 and Xbee's.  The Xbee runs on 3.4v max.  I understand the Xkey needs 5 volts.  I really dont want to put a 5v and 3.3v regulator in the Tx remote, but, if I want to leave the system in tact for testing and real time code tweaking without loading chips in and out, I don't see any options.  I am actually using the Blitz, but I assume it is the same deal.  Can the Xkey run on 5volt rail and thre SX being programmed stay at 3.3?

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