antonagestam/serial.md

Last active February 15, 2019 11:47

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serial.md

Setting up serial on Raspberry Pi 3

Disable bluetooth and setup serial on /dev/ttyAMA0

/boot/config.txt must contain:

enable_uart=1
dtoverlay=pi3-disable-bt

Remove console=serial0,115200 entry from /boot/cmdline.txt
Disable hciuart

$ sudo systemctl disable hciuart

Reboot

$ sudo systemctl reboot

Author

antonagestam commented Feb 15, 2019

Note: When setting up a Raspberry Pi 3 I failed to do step 2 which resulted in the port intermittently failing. I could send some commands but after that communication would fail and require re-opening.

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Setting up serial on Raspberry Pi 3

antonagestam commented Feb 15, 2019

Uh oh!