alarmpi.sh

#!/bin/bash
#
# Alarm script for working along with crond on a Raspberry Pi board plugged in a HDTV.
# Deps: cec-client, mpd, mpc, tty-clock
#
# Rodrigo Abreu <rodrigo@ilostmyself.org>

TERM=xterm
export TERM

TIME=75                                         # Alarm runtime period (in minutes)

echo "on 0.0.0.0" | cec-client -s > /dev/null   # Turns on the TV
echo -ne '\033[9;0]' > /dev/tty1                # Unblanks screen
setterm -blank 0 -powerdown 0 > /dev/tty1       # Prevents the TV from blanking during alarm runtime
mpc clear > /dev/null                           # Clears MPD's queue
mpc load alarm > /dev/null                      # Loads alarm playlist to MPD's queue
mpc repeat on > /dev/null                       # Enables repeat
mpc disable "Behringer UCA202" > /dev/null      # It's recommended to disable any other audio output
mpc enable HDMI > /dev/null                     # Enables HDMI audio output
mpc play > /dev/null                            # Play
tty-clock -S -c -t -d 3 > /dev/tty1 &           # Runs tty-clock (a ncurses clock) to be shown on the HDTV screen
sleep $[$TIME*60]                               # Sleeping beauty
TTY_CLOCK_PID=$(pidof tty-clock)                # Gets tty-clock PID
mpc stop > /dev/null                            # Stops MPD after sleeping beauty
mpc disable HDMI > /dev/null                    # Disables HDMI audio output
mpc enable "Behringer UCA202" > /dev/null       # Enables any other audio output
kill -9 $TTY_CLOCK_PID > /dev/null              # Kills tty-clock
clear > /dev/tty1                               # Clears and blanks the screen after a few seconds
# echo "standby 0" | cec-client -s > /dev/null  # Turns off the TV. See if this line works isolatedly before to uncomment.