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rsbohn/pi2pi.txt

Created January 17, 2022 11:34
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pi2pi.txt
Connect UART and SPI0 between to Pi devices.
[3v3] :: [5v]
GPIO2 [CTS] :: [5v]
GPIO3 [RTS] :: [Gnd]
GPIO4 [TXD?] :: GPIO14 [TXD*]
[Gnd] :: GPIO15 [RXD*]
GPIO17 [RTS] :: GPIO18
GPIO27 :: [Gnd]
... pin 19::20
GPIO10 [SPI0 MOSI SDO] :: [Gnd]
GPIO9 [SPI0 MISO SDI] :: GPIO25
GPIO11 [SPI0 SCLK] :: GPIO8 [SPI0 CE0]
[Gnd] :: GPIO7 [SPI1 CE1]
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