mirror of
https://github.com/jayofelony/pwnagotchi.git
synced 2026-03-12 21:02:52 -07:00
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>
78 lines
2.2 KiB
Python
78 lines
2.2 KiB
Python
#!/home/pi/.pwn/bin/python3
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"""Draw a sleeping face on the Waveshare V4 e-ink before shutdown.
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Requires: Waveshare 2.13" V4 display (250x122).
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On non-V4 displays the import will fail and the script exits silently.
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Install: sudo cp epd-shutdown.py /usr/local/bin/ && sudo chmod +x /usr/local/bin/epd-shutdown.py
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"""
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import sys
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sys.path.insert(0, '/home/pi/.pwn/lib/python3.13/site-packages')
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try:
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from pwnagotchi.ui.hw.libs.waveshare.epaper.v2in13_V4.epd2in13_V4 import EPD
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except ImportError:
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sys.exit(0) # not a V4 display — nothing to do
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from PIL import Image, ImageDraw, ImageFont
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WIDTH = 250
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HEIGHT = 122
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FONT_NAME = 'DejaVuSansMono'
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FONT_BOLD = 'DejaVuSansMono-Bold'
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def load_font(name, size):
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try:
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return ImageFont.truetype(name, size)
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except (IOError, OSError):
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return ImageFont.load_default()
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def main():
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epd = EPD()
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epd.init()
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img = Image.new('1', (WIDTH, HEIGHT), 255)
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draw = ImageDraw.Draw(img)
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# Sleeping face ( -_- ) Zzz
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face_font = load_font(FONT_BOLD, 28)
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face = "( -_- )"
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face_bbox = draw.textbbox((0, 0), face, font=face_font)
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face_w = face_bbox[2] - face_bbox[0]
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face_h = face_bbox[3] - face_bbox[1]
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face_x = (WIDTH - face_w) // 2 - 15
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face_y = (HEIGHT - face_h) // 2 - 12
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draw.text((face_x, face_y), face, font=face_font, fill=0)
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z1_font = load_font(FONT_BOLD, 16)
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z2_font = load_font(FONT_BOLD, 12)
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z3_font = load_font(FONT_BOLD, 9)
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zx = face_x + face_w + 4
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draw.text((zx, face_y - 2), "Z", font=z1_font, fill=0)
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draw.text((zx + 12, face_y + 12), "z", font=z2_font, fill=0)
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draw.text((zx + 20, face_y + 22), "z", font=z3_font, fill=0)
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sm_font = load_font(FONT_NAME, 10)
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off_text = "powered off"
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off_bbox = draw.textbbox((0, 0), off_text, font=sm_font)
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off_w = off_bbox[2] - off_bbox[0]
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off_x = (WIDTH - off_w) // 2
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draw.text((off_x, face_y + face_h + 16), off_text, font=sm_font, fill=0)
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# Full refresh persists after power cut
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img = img.rotate(180)
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epd.display(epd.getbuffer(img))
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epd.sleep()
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if __name__ == '__main__':
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try:
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main()
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except Exception as e:
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print(f"epd-shutdown: {e}", file=sys.stderr)
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