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- Disable serial console using raspi-config
- Put the following in /boot/config.txt
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enable_uart=1
core_freq=250
========
- Change serial port in 3 places to /dev/ttyS0 in /lib/systemd/system-shutdown/mopower-ups-timed-shutdown.sh
- Change /dev/ttyAMA0 to /dev/ttyS0 in 2 places (or 4, 2 are comments) in the file mopower-ups.py
- REBOOT!
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