added ppp_installer

ppp_installer/chat-connect

@@ -0,0 +1,14 @@
+# /etc/chatscripts/chat-connect
+ABORT "BUSY"
+ABORT "NO CARRIER"
+ABORT "NO DIALTONE"
+ABORT "ERROR"
+ABORT "NO ANSWER"
+TIMEOUT 30
+"" AT
+OK ATE0
+OK ATI;+CSUB;+CSQ;+COPS?;+CGREG?;&D2
+OK AT+CGDCONT=1,"IP","\T",,0,0
+#EXTRA
+OK ATD*99#
+CONNECT

ppp_installer/chat-disconnect

@@ -0,0 +1,8 @@
+# /etc/chatscripts/quectel-chat-disconnect
+ABORT "ERROR"
+ABORT "NO DIALTONE"
+SAY "\nSending break to the modem\n"
+""  +++
+""  +++
+""  +++
+SAY "\nGoodbye\n"

ppp_installer/install.sh

@@ -0,0 +1,135 @@
+#!/bin/sh
+# How to use case-esac
+
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+SET='\033[0m'
+
+echo "${YELLOW}Please choose your Sixfab Shield:${SET}"
+echo "${YELLOW}1: GSM/GPRS Shield${SET}"
+echo "${YELLOW}2: 3G, 4G/LTE Base Shield${SET}"
+echo "${YELLOW}3: Cellular IoT Shield${SET}"
+
+read answer
+case $answer in
+    1)    echo "${YELLOW}You chose GSM/GPRS Shield${SET}";;
+    2)    echo "${YELLOW}You chose Base Shield${SET}";;
+    3)    echo "${YELLOW}You chose Cellular Iot Shield${SET}";;
+    *)    echo "${YELLOW}You did not chose 1, 2 or 3${SET}"; exit 1;
+esac
+
+echo "${YELLOW}Downloading setup files${SET}"
+wget --no-check-certificate  https://raw.githubusercontent.com/sixfab/rpiShields/master/ppp_installer/chat-connect -O chat-connect
+
+if [ $? -ne 0 ]; then
+    echo "${RED}Download failed${SET}"
+    exit 1; 
+fi
+
+wget --no-check-certificate  https://raw.githubusercontent.com/sixfab/rpiShields/master/ppp_installer/chat-disconnect -O chat-disconnect
+
+if [ $? -ne 0 ]; then
+    echo "${RED}Download failed${SET}"
+    exit 1;
+fi
+
+wget --no-check-certificate  https://raw.githubusercontent.com/sixfab/rpiShields/master/ppp_installer/provider -O provider
+
+if [ $? -ne 0 ]; then
+    echo "${RED}Download failed${SET}"
+    exit 1;
+fi
+
+while [ 1 ]
+do
+	echo "${YELLOW}Do you have updated kernel ? [Y/n] ${SET}"
+	read answer2
+	
+	case $answer2 in
+		Y)  break;;
+		
+		n)  echo "${YELLOW}rpi-update${SET}"
+			rpi-update
+		    break;;
+		*)  echo "${YELLOW}You did not choose y, N${SET}";;
+	esac
+done
+
+echo "${YELLOW}ppp install${SET}"
+apt-get install ppp
+
+echo "${YELLOW}What is your carrier APN?${SET}"
+read carrierapn 
+
+echo "${YELLOW}What is your device communication PORT? (ttyS0/ttyUSB3/etc.)${SET}"
+read devicename 
+
+EXTRA='OK AT+QCFG="nwscanseq",01,1\nOK AT+QCFG="nwscanmode",1,1\nOK AT+QCFG="iotopmode",2,1'
+
+mkdir -p /etc/chatscripts
+if [ $answer -eq 3 ]; then
+  sed -i "s/#EXTRA/$EXTRA/" chat-connect
+else
+  sed -i "/#EXTRA/d" chat-connect
+fi
+
+mv chat-connect /etc/chatscripts/
+mv chat-disconnect /etc/chatscripts/
+
+mkdir -p /etc/ppp/peers
+sed -i "s/#APN/$carrierapn/" provider
+sed -i "s/#DEVICE/$devicename/" provider
+mv provider /etc/ppp/peers/provider
+
+if ! (grep -q 'route' /etc/ppp/ip-up ); then
+    echo "sudo route del default" >> /etc/ppp/ip-up
+    echo "sudo route add default ppp0" >> /etc/ppp/ip-up
+fi
+
+if [ $answer -eq 2 ]; then
+	if ! (grep -q 'max_usb_current' /boot/config.txt ); then
+		echo "max_usb_current=1" >> /boot/config.txt
+	fi
+fi
+
+while [ 1 ]
+do
+	echo "${YELLOW}Do you want to activate auto connect/reconnect service at R.Pi boot up? [Y/n] ${SET}"
+	read answer3
+
+	case $answer3 in
+		Y)    echo "${YELLOW}Downloading setup file${SET}"
+			  
+			  wget --no-check-certificate https://raw.githubusercontent.com/sixfab/rpiShields/master/ppp_installer/reconnect_service -O reconnect.service
+			  
+			  if [ $answer -eq 1 ]; then
+			  
+				wget --no-check-certificate  https://raw.githubusercontent.com/sixfab/rpiShields/master/ppp_installer/reconnect_gprsshield -O reconnect.sh
+			  
+			  elif [ $answer -eq 2 ]; then 
+			  
+				wget --no-check-certificate  https://raw.githubusercontent.com/sixfab/rpiShields/master/ppp_installer/reconnect_baseshield -O reconnect.sh
+				
+			  elif [ $answer -eq 3 ]; then 
+			  
+				wget --no-check-certificate  https://raw.githubusercontent.com/sixfab/rpiShields/master/ppp_installer/reconnect_cellulariot -O reconnect.sh
+			  
+			  fi
+			  
+			  mv reconnect.sh /usr/src/
+			  mv reconnect.service /etc/systemd/system/
+			  
+			  
+			  systemctl daemon-reload
+			  systemctl enable reconnect.service
+			  
+			  break;;
+			  
+		n)    echo "${YELLOW}To connect to internet run \"sudo pon\" and to disconnect run \"sudo poff\" "
+			  break;;
+		*)   echo "${YELLOW}You did not chose Y, N${SET}";;
+	esac
+done
+
+reboot
+

ppp_installer/provider

@@ -0,0 +1,35 @@
+# /etc/ppp/peers/provider
+/dev/#DEVICE 115200
+# The chat script, customize your APN in this file
+connect 'chat -s -v -f /etc/chatscripts/chat-connect -T #APN'
+# The close script
+disconnect 'chat -s -v -f /etc/chatscripts/chat-disconnect'
+# Hide password in debug messages
+hide-password
+# The phone is not required to authenticate
+noauth
+# Debug info from pppd
+debug
+# If you want to use the HSDPA link as your gateway
+defaultroute
+# pppd must not propose any IP address to the peer
+noipdefault
+# No ppp compression
+novj
+novjccomp
+noccp
+ipcp-accept-local
+ipcp-accept-remote
+local
+# For sanity, keep a lock on the serial line
+lock
+modem
+dump
+updetach
+# Hardware flow control
+nocrtscts
+remotename 3gppp
+ipparam 3gppp
+ipcp-max-failure 30
+# Ask the peer for up to 2 DNS server addresses
+usepeerdns

ppp_installer/reconnect_baseshield

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+	while true; do
+
+	ping -c 1 8.8.8.8
+
+	if [ $? -eq 0 ]; then
+		echo "Connection up, reconnect not required..."
+	else
+		echo "Connection down, reconnecting..."
+		sudo pon
+	fi
+
+	sleep 1
+done

ppp_installer/reconnect_cellulariot

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+gpio -g mode 20 in
+gpio -g mode 11 out
+gpio -g mode 26 out
+
+gpio -g write 26 0
+sleep 1
+gpio -g write 26 1
+
+while true; do
+
+	if [ $(gpio -g read 20) = "1" ]; then
+		echo "Power up"
+
+		gpio -g write 11 0
+		gpio -g write 11 1
+		sleep 2
+		gpio -g write 11 0
+		sleep 2
+	else
+		ping -c 1 8.8.8.8
+
+		if [ $? -eq 0 ]; then
+			echo "Connection up, reconnect not required..."
+		else
+			echo "Connection down, reconnecting..."
+			sudo pon
+		fi
+	fi
+
+	sleep 1
+done

ppp_installer/reconnect_gprsshield

@@ -0,0 +1,28 @@
+#!/bin/sh
+
+gpio -g mode 19 in
+gpio -g mode 26 out
+
+while true; do
+
+	if [ $(gpio -g read 19) = "0" ]; then
+		echo "Power up"
+
+		gpio -g write 26 0
+		gpio -g write 26 1
+		sleep 2
+		gpio -g write 26 0
+		sleep 2
+	else
+		ping -c 1 8.8.8.8
+
+		if [ $? -eq 0 ]; then
+			echo "Connection up, reconnect not required..."
+		else
+			echo "Connection down, reconnecting..."
+			sudo pon
+		fi
+	fi
+
+	sleep 1
+done

ppp_installer/reconnect_service

@@ -0,0 +1,14 @@
+[Unit]
+Description=PPP Auto Connection
+After=network.target
+
+[Service]
+ExecStart=/bin/sh /usr/src/reconnect.sh
+WorkingDirectory=/usr/src/
+StandardOutput=inherit
+StandardError=inherit
+Restart=always
+User=pi
+
+[Install]
+WantedBy=multi-user.target