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Member Since: January 16, 2012

Country: United States

  • Apparently the D3 pin needs to be used for the SPI CS line.

  • Yes, that is correct, I am using the same scheme although I haven't tested it on the new board yet. I'm assuming WP stands for write protection, but not sure what to connect to that pin if I am not using it. The datasheet says to put pull-up resistors on any unused connections namely D1 and D2.

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