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vesper/doc/rpi3_serial.md

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Connecting RPi3 UART

Using cp2104 usb-to-ttl converter

Download drivers from: https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

Install minicom: brew install minicom

Configure minicom to use /dev/tty.SLAB_USBtoUART port.

Connect rpi wires to cp2014:

UART0

FUNC  |  GPIO  |  PIN #  |  MODE  | Wire color
------+--------+---------+--------+------------
RXD0  | GPIO15 |   10    |  Alt0  | Brown
TXD0  | GPIO14 |    8    |  Alt0  | Red

MiniUart (UART1)

FUNC  |  GPIO  |  PIN #  |  MODE  | Wire color
------+--------+---------+--------+------------
RXD1  | GPIO15 |   10    |  Alt5  | Brown
TXD1  | GPIO14 |    8    |  Alt5  | Red
GND   | GND    |    6    |        | Green

NB: SWAP the TXD and RXD wires.

I.e. RXD pin of CP2104 should go to TXD pin on RPi and vice versa.