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https://github.com/jayofelony/pwnagotchi.git
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dff77e105d
PiSugar 3 users need graceful shutdown with e-ink feedback, boot-loop prevention when charging from dead battery, and automatic recovery when pisugar-server loses I2C connection after MCU wake. - safe-shutdown.sh: stops pwnagotchi, draws sleeping face on e-ink, powers off. Boot-loop guard skips shutdown when battery <10% and charging. - pisugar-watchdog.sh + systemd timer: detects MCU wake from deep sleep and restarts pisugar-server when I2C is present but daemon reports disconnected. - epd-shutdown.py / epd-startup.py: e-ink display faces for Waveshare V4. Exit silently on non-V4 displays. Signed-off-by: CoderFX <4704376+CoderFX@users.noreply.github.com>
43 lines
1.5 KiB
Bash
43 lines
1.5 KiB
Bash
#!/bin/bash
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# Show shutdown face on e-ink display, then power off.
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# Called by PiSugar soft_poweroff_shell (power button or battery protect).
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#
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# Requires: PiSugar 3 (pisugar-server on port 8423).
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# On non-PiSugar setups the nc commands return empty — shutdown proceeds normally.
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#
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# Boot-loop guard: if battery is low AND charging (USB-C plugged in),
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# skip shutdown — the Pi just auto-started to charge, don't kill it.
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#
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# Install:
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# sudo cp safe-shutdown.sh /usr/local/bin/ && sudo chmod +x /usr/local/bin/safe-shutdown.sh
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# Then set in PiSugar config: "soft_poweroff_shell": "sudo /usr/local/bin/safe-shutdown.sh"
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PISUGAR="127.0.0.1 8423"
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# Query PiSugar battery level and charging status
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BATTERY=$(echo "get battery" | nc -q 1 $PISUGAR 2>/dev/null | grep -oP '[\d.]+' | head -1)
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CHARGING=$(echo "get battery_power_plugged" | nc -q 1 $PISUGAR 2>/dev/null)
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# Guard: low battery + charging = skip shutdown (charging from dead)
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if echo "$CHARGING" | grep -q "true"; then
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BAT_INT=${BATTERY%.*}
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BAT_INT=${BAT_INT:-0}
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if [ "$BAT_INT" -lt 10 ] 2>/dev/null; then
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echo "Charging at ${BAT_INT}% — skipping shutdown" > /tmp/.pwnagotchi-button-msg
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exit 0
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fi
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fi
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# Normal shutdown flow
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echo "Shutting down..." > /tmp/.pwnagotchi-button-msg
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# Stop pwnagotchi first to release the SPI bus
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systemctl stop pwnagotchi 2>/dev/null
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sleep 2
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# Draw sleeping face on e-ink (full refresh, persists after power cut)
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/home/pi/.pwn/bin/python3 /usr/local/bin/epd-shutdown.py 2>/dev/null
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# Power off
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shutdown -h now
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