I updated a few Rpi from 1.18b to 1.21g
All went fine bar one which which crapped out. This one ran a script
(/home/tc/relay.sh) which drove a GPIO pin to initiate a power on / off
for my DAC.
Today I found a backup of 1.18b + relay.sh and after re flashing normal
service was resumed.
So I then did the 1.18b to 1.21g upgrade again, this time ending up with
a success in so much as I had a player playing streams. But the script
seemed to have disappeared.
I then restored the 1.18b + relay.sh version for now.
Is there a reason why the script would have apparently disappeared
following a 1.18b to 1.21g upgrade?
The scripts is Gregs with a little of my ham fisted hacking.
Code:
--------------------
cat /home/tc/relay.sh
#!/bin/sh
# Version: 0.01 2014-11-28 GE
# Original.
#===========================================================================
# This script polls LMS at a regular interval to determine the current
# status of the Squeezelite process on piCorePlayer. i.e. play or stop.
#
# A GPIO is then set/reset depending on the result of this status check.
#
# There is an adjustable relay off delay that can be used as an inactivity
# timing.
#---------------------------------------------------------------------------
#===========================================================================
# Possible issues
#---------------------------------------------------------------------------
# 1. Initial relay status during booting. It is probably better to start
# this script before starting Squeezelite. Also, a pull-up or pull-down
# resistor may be needed to ensure initial state of GPIO.
# 2. If setting MAC address manually, pay close attention to the physical,
# wireless and fake MAC addresses.
# 3. This script hasn't been tested on synced players.
#---------------------------------------------------------------------------
#===========================================================================
# Test procedure
#---------------------------------------------------------------------------
# sudo killall relay.sh
# sudo sh -c 'echo "17" > /sys/class/gpio/unexport'
# sudo ./relay.sh > /dev/null &
#---------------------------------------------------------------------------
#set -x
#. /home/tc/www/cgi-bin/pcp-functions
#pcp_variables
#===========================================================================
# Set the following according to your setup
#---------------------------------------------------------------------------
MAC_ADDR=b8:27:eb:ac:7c:b2 # Raspberry Pi MAC address
#MAC_ADDR=$(pcp_controls_mac_address) # Set by pCP
LMS_IP=192.168.1.97 # LMS IP address
#LMS_IP=$(pcp_lmsip) # Set by pCP
INTERVAL=0.5 # Set
Poll interval
GPIO=17
# Set GPIO
COMMAND="status 0 0" # LMS player
status command
DELAYOFF=10
# Delay in no. of intervals
COUNT=0
DEBUG=0
#---------------------------------------------------------------------------
if [ $DEBUG = 1 ]; then
echo
echo "MAC_ADDR : "$MAC_ADDR
echo "LMS_IP : "$LMS_IP
echo "INTERVAL : "$INTERVAL
echo "GPIO : "$GPIO
echo "COMMAND : "$COMMAND
echo "DELAYOFF : "$DELAYOFF
echo
fi
get_mode() {
RESULT=`( echo "$MAC_ADDR $COMMAND"; echo exit ) | nc $LMS_IP 9090`
echo $RESULT | grep "mode%3Aplay" > /dev/null 2>&1
if [ $? == 0 ]; then
echo "Playing. Count: $COUNT"
COUNT=0
echo "1" > /sys/class/gpio/gpio$GPIO/value
sleep 0.5
echo "0" > /sys/class/gpio/gpio$GPIO/value
sleep 3
echo "1" >
/sys/class/gpio/gpio$GPIO/value
sleep 0.5
echo "0" >
/sys/class/gpio/gpio$GPIO/value
sleep 3
echo "1" >
/sys/class/gpio/gpio$GPIO/value
sleep 0.5
else
if [ $COUNT -ge $DELAYOFF ]; then
#echo "Stopped. Count: $COUNT"
echo "0" > /sys/class/gpio/gpio$GPIO/value
COUNT=0
else
#COUNT=`expr $COUNT + 1` #or
COUNT=$(($COUNT + 1))
echo "Stopped. Count: $COUNT"
fi
fi
}
#===========================================================================
# Initial GPIO setup
#---------------------------------------------------------------------------
sudo sh -c 'echo '"$GPIO"' > /sys/class/gpio/export'
sudo sh -c 'echo "out" > /sys/class/gpio/gpio'"$GPIO"'/direction'
# My relay is active low, so this reverses the logic
sudo sh -c 'echo "0" > /sys/class/gpio/gpio'"$GPIO"'/active_low'
echo "1" > /sys/class/gpio/gpio$GPIO/value
#---------------------------------------------------------------------------
#===========================================================================
# Loop forever. This uses less the 1% CPU, so it should be OK.
#---------------------------------------------------------------------------
while true
do
get_mode
sleep $INTERVAL
done
#---------------------------------------------------------------------------
--------------------
And is called here.
Code:
--------------------
tc@piCorePlayer:~$ cat /opt/bootlocal.sh
#!/bin/sh
# put other system startup commands here
#amixer cset numid=3 2
sleep 5
sudo /home/tc/relay.sh > /dev/null &
#mnt/mmcblk0p2/tce/OliWeb-master/ivySox/myweb/do_rebootstuff.sh
/home/tc/www/cgi-bin/do_rebootstuff.sh
--------------------
------------------------------------------------------------------------
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View this thread: http://forums.slimdevices.com/showthread.php?t=97803
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