Hello, I am trying to use a BG77 module to provide internet access to a Raspberry pi. No calls and sms are needed.
What drivers do I need to install?
Do I have to use USB interface? or does it also work over UART?
Is there any user guide for this topic?
Thanks.
I think you can use the PPP.
#!/bin/sh
#quectel-pppd devname apn user password
echo "quectel-pppd options in effect:"
QL_DEVNAME=/dev/ttyUSB3
QL_APN=3gnet
QL_USER=user
QL_PASSWORD=passwd
QL_PDP=1
QL_IP=IP #IP, IPV4, IPV6, IPV4V6
if [ $# -ge 1 ]; then
QL_DEVNAME=$1
echo "devname $QL_DEVNAME # (from command line)"
else
echo "devname $QL_DEVNAME # (default)"
fi
if [ $# -ge 2 ]; then
QL_APN=$2
echo "apn $QL_APN # (from command line)"
else
echo "apn $QL_APN # (default)"
fi
if [ $# -ge 3 ]; then
QL_USER=$3
echo "user $QL_USER # (from command line)"
else
echo "user $QL_USER # (default)"
fi
if [ $# -ge 4 ]; then
QL_PASSWORD=$4
echo "password $QL_PASSWORD # (from command line)"
else
echo "password $QL_PASSWORD # (default)"
fi
CONNECT="'chat -s -v ABORT BUSY ABORT \"NO CARRIER\" ABORT \"NO DIALTONE\" ABORT ERROR ABORT \"NO ANSWER\" TIMEOUT 30 \
\"\" AT OK ATE0 OK ATI\;+CSUB\;+CSQ\;+CPIN?\;+COPS?\;+CEREG?\;\&D2 \
OK AT+CGDCONT=$QL_PDP,\\\"$QL_IP\\\",\\\"$QL_APN\\\",,0,0 OK ATD*99***$QL_PDP# CONNECT'"
OPTIONS="noauth debug defaultroute noipdefault novj novjccomp noccp ipcp-accept-local ipcp-accept-remote ipcp-max-configure 30 local lock modem dump nodetach nocrtscts usepeerdns"
if [ "$QL_IP" == "IPV6" ]; then
OPTIONS="$OPTIONS noip +ipv6"
fi
if [ "$QL_IP" == "IPV4V6" ]; then
OPTIONS="$OPTIONS +ipv6"
fi
pppd $QL_DEVNAME 115200 user "$QL_USER" password "$QL_PASSWORD" \
connect "'$CONNECT'" \
disconnect 'chat -s -v ABORT ERROR ABORT "NO DIALTONE" SAY "\nSending break to the modem\n" "" +++ "" +++ "" +++ SAY "\nGood bay\n"' \
$OPTIONS &
You can use
sh quectel-pppd.sh /dev/Main_uart