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tyrelsouza/README

Last active January 17, 2017 22:01
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Take shot and timestamp and SIGUSR rpi
Raw
README
1. Install imagmagick, nginx, and raspistill.
2. Set a call to take_shot.sh in cron.
3. Drop html to be served by nginx.
Raw
index.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="refresh" content="30" />
</head>
<body>
<img src="latest.jpg">
</body>
</html>
Raw
take_shot.sh
#!/bin/bash
DATE=$(date +"%m/%d/%Y %R")
# Run raspistill as a cheap daemon.
ps aux|grep [r]aspistill || raspistill -o /var/www/html/pre_timestamp.jpg --nopreview -q 75 --metering spot --mode 1 -e jpg -s -t 0 &
# Send Signal to raspistill to take a picture
pkill -SIGUSR1 raspistill
# crop picture, and add timestamp
convert /var/www/html/pre_timestamp.jpg -crop 524x750+796+876 -font AvantGarde-Book \
-pointsize 20 -fill white -annotate +846+926 "$DATE" \
/var/www/html/latest.jpg
# make a backup
cp /var/www/html/latest.jpg /var/www/html/images/shot-$(date +"%Y-%m-%d_%H%M").jpg
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