¶ How to use BPI-4G LTE module with BPI-R2
¶ Get startting
Forum pthread for discuss : http://forum.banana-pi.org/t/how-to-use-bpi-4g-lte-module-with-bpi-r2/5223/4
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Firstly, use R2 connects LTE module by USB or 14pin Headers. then execute command "lsusb" to have a look if R2 have drove the module. The red box is the id of 4G module.
After seeing this, execute command "ls /dev/ttyUSB*" to make sure the 4G module have been recognised as USB devs.
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Execute the "./ppp1.sh &"
then execute command “ifconfig -a”，you will see ppp0
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Execute command ”wget -O speedtest-cli https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py” to download speed test tool.
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Execute command "chmod +x speedtest-cli", then execute "./speedtest-cli"
¶ FAQ
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You could get ppp1.sh from here : https://pan.baidu.com/s/1yu0nTNQKPNPzprVPjhOPUA
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Q: What should I do, if you meet this "expect (OK) ^M alarm Failed "
A:The root cause is the Modem.service has used the module usbserial, so the 4G module can’t use usbserial; we can solve the problem by using command "systemctl disable ModemManager.service " or "systemctl stop ModemManager.service "
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Q：How to test the communication between SIM card and 4G module？
A:Use minicom， ”minicom -D /dev/ttyUSB2”，and then use AT commands to test, such as ”at”，”at+csq”，“at+ccid”，if you get response without error，that means the communication is OK.
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Q: How to install libqmi?
A: Download from here: http://www.linuxfromscratch.org/blfs/view/cvs/general/libqmi.html ; then make and make install.
If you meet this:
you need to install libgudev-1.0-dev， then make and make install again.
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Q：How to use qmi-wwan？
A：There is a very easy way to use，I’ve put quectel-CM in home path of root，just execute “./quectel-CM &”，then execute “dhclient wwan0”，now you have finished the configurations.
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Q：How to use GPS？
A：BPI-4G module supports GPS and BeiDou，execute “minicom -D /dev/ttyUSB2”，then input AT commands like this：
If you want to use BeiDou，just input AT commands like this：
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Here are kernel configurations and driver patch for kernel 4.14.
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Support areas:
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EC25-E support: EMEA/Thailand/India/South Korea
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EC25-AU support: Australia
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EC25-V/-A support：North America
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Openwrt Supported:
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Clone the source code from this link : BPI-R2 OpenWrt(LEDE) Souce code : 2018-04-11
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Add qmi-wwan driver to this project :
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Execute “./scripts/feeds/ install minicom” to install minicom to openwrt project
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Execute “./scripts/feeds/ install python” to install python to openwrt project
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Execute “make menuconfig”
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Add minicom “Utilities —> Terminal —> minicom”
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Add python “Languages —> Python”
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Add driver “Network —> wwan …Genetic OpenWrt 3G/4G proto handler”
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Add "Kernel modules —> USB Support —>
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kmod-usb-core
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kmod-usb-net —> kmod-usb-net-qmi-wwan
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kmod-usb-ohci
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kmod-usb-serial —> kmod-usb-serial-option , kmod-usb-serial-wwan
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kmod-usb-uhci
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kmod-usb2-*
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Use these source files to replace your openwrt project source files (“build_dir/target-arm_cortex-a7+neon-vfpv4_musl_eabi/linux-mediatek_32/linux-4.9.44/drivers/usb(or net)/…”) :
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Image & Stuff Link :
Baidu Drive : https://pan.baidu.com/s/1e6bvsznfFW3PuaONz0OR1Q
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Cross-Compile quectel-CM Copy “quectel-CM” to Linux host PC，and change “Makefile” under the “quectel-CM”，change tools like this：The tools are under openwrt project，you can find them according to the following picture.
If ping Domain name fail，add “nameserver 8.8.8.8” to /etc/resolv.conf
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If you use mPCIE interface 4G module to connect R2 by 14 pin header，use these cmds to enable 4G module，after you did these steps，USB0 port will be disable.
cd /sys/class/gpio/ echo 266 > export 【# 266(gpio_offset) = 232(base) + 34(GPIO_34)】 cd gpio266/ echo out > direction echo 1 > value