Sorry if I am asking something very basic, did not find any good post on how to handle this.. I am following a tutorial on how to communicate with my PI 3 using UART. I followed theses steps:

  • Delete "console=ttyAMA0,115200 kgdboc=ttyAMA0,115200" and add" enable_uart=1" in /boot/cmdline.txt

  • Delete "T0:23:respawn:/sbin/getty -L ttyAMA0 115200 vt100" in /etc/inittab

  • reboot

  • do "sudo stty -F /dev/ttyAMA0 115200 cs8 -cstopb -onlcr -echo -echoe -echok -opost"

  • plug RX and TX together (for test purpose)

Then i try to write/read data on the the serial port using the command line or/and python but nothing happens.

Could you help me please?


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