34cd247dca
Touchscreen kiosk for the Raspberry Pi HQ camera (IMX477) used as a microscope: live preview from boot, raw frame recording, full-resolution stills, and automatic capture-SSD mounting. - app.py: GTK3 fullscreen UI over cage — preview, REC/STOP, PHOTO, 90-degree rotate button, tap-to-open exposure/gain/settings sliders, and an "SSD NOT MOUNTED" badge - camera.py: picamera2 wrapper with separate video (ISP preview + packed 12-bit raw) and still (4056x3040) configurations - recorder.py: writer thread turning the raw stream into one Bayer frame per file plus index.jsonl/session.json, with dropped/missed accounting - photos.py: still capture to DNG + JPEG, and a background worker that renders a viewable 16-bit sRGB TIFF from the 12-bit Bayer frame - storage.py: SSD mount state and the date/time/format session layout - tools/unpack_raw.py: desktop-side unpacker/demosaicer - system/ + install.sh: systemd units, udev rule, mount helper, sudoers Note: raw frames are written byte-for-byte as the sensor produced them, so they stay decodeable regardless of how the stills pipeline evolves.
36 lines
1007 B
Desktop File
36 lines
1007 B
Desktop File
[Unit]
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Description=Microscope camera kiosk (cage + capture UI)
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Documentation=file:/opt/microscope-camera/README.md
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After=systemd-user-sessions.service systemd-logind.service
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Wants=systemd-logind.service
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Conflicts=getty@tty1.service
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After=getty@tty1.service
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ConditionPathExists=/opt/microscope-camera/app.py
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[Service]
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Type=simple
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User=tyler
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Group=tyler
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# A logind session on tty1 gives cage DRM master plus input device access.
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PAMName=login
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TTYPath=/dev/tty1
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TTYReset=yes
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TTYVHangup=yes
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TTYVTDisallocate=yes
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StandardInput=tty
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StandardOutput=journal
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StandardError=journal
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Environment=XDG_RUNTIME_DIR=/run/user/1000
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Environment=HOME=/home/tyler
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Environment=PYTHONUNBUFFERED=1
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ExecStartPre=/bin/sh -c 'install -d -m 700 -o tyler -g tyler /run/user/1000'
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ExecStart=/usr/bin/cage -s -- /usr/bin/python3 /opt/microscope-camera/app.py
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Restart=always
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RestartSec=2
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# Keep the recorder alive long enough to flush its last frames on restart.
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KillSignal=SIGTERM
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TimeoutStopSec=30
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[Install]
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WantedBy=multi-user.target
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