33 lines
711 B
Bash
Executable File
33 lines
711 B
Bash
Executable File
#!/bin/bash
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set -x
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echo "Setting up the real time clock module, part 2"
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echo ds1307 0x68 | sudo tee /sys/class/i2c-adapter/i2c-3/new_device
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# Load RTC clock at boot
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sudo sed -i "s/^exit 0$//" /etc/rc.local
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sudo cat << EOF | sudo tee -a /etc/rc.local
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echo ds1307 0x68 | sudo tee /sys/class/i2c-adapter/i2c-3/new_device
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sudo hwclock -s
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exit 0
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EOF
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# Set system time to Internet time
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echo "Restarting systmd-timesyncd to update system time"
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sudo systemctl restart systemd-timesyncd
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echo "System time now:"
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date
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# Write system time to the RTC module
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echo "Hardware clock time now:"
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sudo hwclock -r
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echo "Writing system time to hardware clock"
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sudo hwclock -w
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echo "Hardware clock time now:"
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sudo hwclock -r
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