daviddoran / whiteboard-capture

Capture what's on your whiteboard using a physical trigger, fswebcam, CloudFiles and HipChat.

Whiteboard Capture

The small tools in this project will help you capture what's on your whiteboard using a webcam, fswebcam, Rackspace CloudFiles and HipChat.

Each program has a small job:

button-listener.py

Waits for a GPIO pin to be triggered (voltage goes high or low), for example by a button or a sensor.

When triggered, the script pipeline.sh will be run.

capture-frame.php

Captures a single frame from the webcam using fswebcam, saves it to file and outputs the filename to stdout. If an error is encountered then nothing is written to stdout, the exit code will be non-zero and a message will be written to stderr.

Example:

$ ./capture-frame.php
/tmp/whiteboardlRbHQt

save-to-cloudfiles.php

Saves the data in the file given on stdin to a CloudFiles container and outputs the public CDN URL to stdout. Debugging output is written to stderr. If there's an error then the exit code will be non-zero.

Example:

$ echo '/tmp/whiteboardlRbHQt' | ./save-to-cloudfiles.php
http://04e[...].rackcdn.com/362dcaa9e9eb3d4c495adb815a82033d8366a20e.jpg

post-to-hipchat.php

Posts the message given on stdin to a HipChat room. If there's an error then the exit code will be non-zero.

Example:

$ echo 'This is a message' | ./post-to-hipchat.php