csb502iot_setup.sh

#!/bin/bash

set -e

if [[ $EUID -ne 0 ]]; then
    echo "must be run as root. try: sudo $0"
	exit 1
fi

echo -n "Configuring system for CSB502IOT Board..."

# make backup
cp /boot/config.txt /boot/config.bk

#enable i2c1, alias i2c_arm
grep -q '^i2c-dev' /etc/modules && sed -i 's/^i2c-dev.*/i2c-dev/' /etc/modules || echo 'i2c-dev' >> /etc/modules
grep -q '^dtparam=i2c_arm' /boot/config.txt && sed -i 's/^dtparam=i2c_arm.*/dtparam=i2c_arm=on/' /boot/config.txt || grep -q '^dtparam=i2c1' /boot/config.txt && sed -i 's/^dtparam=i2c1.*/dtparam=i2c_arm=on/' /boot/config.txt || echo 'dtparam=i2c_arm=on' >> /boot/config.txt

# setup dallas 1-wire temp sensor
grep -q '^ds2482' /etc/modules || echo 'ds2482' >> /etc/modules
grep -q '^echo ds2482 0x18 > /sys/bus/i2c/devices/i2c-1/new_device' /etc/rc.local || sed -i '/^exit 0/ iecho ds2482 0x18 > /sys/bus/i2c/devices/i2c-1/new_device' /etc/rc.local

# setup rtc
grep -q '^rtc-ds1307' /etc/modules || echo 'rtc-ds1307' >> /etc/modules
grep -q '^sudo hwclock -s' /etc/rc.local && sed -i 's/^sudo hwclock -s.*/hwclock -s/' /etc/rc.local || grep -q '^hwclock -s' /etc/rc.local || sed -i '/^exit 0/ ihwclock -s' /etc/rc.local
grep -q '^echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device' /etc/rc.local || sed -i '/^hwclock -s/ iecho ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device' /etc/rc.local

# setup pcm5102a dac
grep -q '^dtoverlay=hifiberry-dac' /boot/config.txt || echo 'dtoverlay=hifiberry-dac' >> /boot/config.txt

echo "done"

read -r -p "Would you like to setup Wifi network name and password? [y/N] " response
case $response in
    [yY][eE][sS]|[yY])  
	echo -n "Enter the network name (ESSID, case sensitive):" 
	read essid
	echo -n "Enter the network password (case sensitive):"
	read wifipass

	#remove old entry for network={...}
	sed -i /^network=/,/}/d /etc/wpa_supplicant/wpa_supplicant.conf

	echo "network={" >> /etc/wpa_supplicant/wpa_supplicant.conf
	echo "    ssid=\"$essid\"" >> /etc/wpa_supplicant/wpa_supplicant.conf
	echo "    psk=\"$wifipass\"" >> /etc/wpa_supplicant/wpa_supplicant.conf
	echo "}" >> /etc/wpa_supplicant/wpa_supplicant.conf
        ;;
    *)
        echo "OK, not configuring network name/pass"
        ;;
esac

#install necessary packages
apt-get update
apt-get install -y i2c-tools
apt-get install -y python-smbus
apt-get install -y git
#clone GrovePi git repo
git clone https://github.com/DexterInd/GrovePi

sync
echo
echo "Configuration Complete! Please Reboot..."
echo

exit 0