Dual RFM12B board testing notes

Now I am using a bread board to make aSPI signal routing board for both RFM12Bs.  Previously I was using jumper wires to jump between two RFM12Bs.   This is a bit error prone and I worry that I might made another careless mistake connecting wrong ends and damage something.  I am using this bread board to hard  wire all the connections, so that I need to change jumpers by hand when switching from one RFM to another.

Earlier I also selected RFMs by shorting the nSEL to ground, because I found the SPI select signals seems not working.  This time I double checked and found that it is indeed working.

So I can now use SPI Select 0, Select 1 to choose either RFM12B.

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