This commit adds support for the Cudy LT400E v1, an indoor 4G/LTE WiFi router. It has 4x10/100 Mbps Ethernet ports, a 2.4 GHz radio, and a Quectel 4G/LTE EC200A modem. Hardware: SoC: MediaTek MT7628NN Flash: 8 MiB SPI RAM: 64 MiB Ethernet: 4x10/100 Mbps WiFi: 2.4 GHz (embedded MT7628, 802.11n) WWAN: Quectel EC200A-EL 4G/LTE Cat 4 modem SIM: nano-SIM slot Buttons: 1 Reset button, 1 WPS button LEDs: 10x (blue) Power: 12 V DC barrel jack Installation: The stock firmware is a customized variant of OpenWrt, which implements a signature check that only allows flashing official firmware. Cudy offers, on their website [1][6], intermediate OpenWrt firmware images which do not implement the signature check. After flashing the intermediate image, the upstream (i.e., official) OpenWrt image can be installed. See the device's entry in OpenWrt's Wiki for more details [2]. Cellular network: The Quectel EC200A modem is internally connected to the SoC via USB, and operates in ECM mode, supported by the CDC Ether driver [3]. When inserting a SIM card in the slot, if no PIN is needed, the network interface "usb0" is brought up and the cellular connection works out of the box. To interact with the modem directly (unlock the PIN, change APN and PDP settings, etc.), AT commands can be sent with picocom to serial port /dev/ttyUSB2 [4]. Recovery: The stock firmware can be recovered via TFTP, as the bootloader (based on U-Boot) implements a recovery client. Set up a TFTP server on your computer with IP 192.168.88.1/24 serving the stock firmware from Cudy's website renamed to "recovery.bin". Press the Reset button (keep it pressed), power on the device, wait for the TFTP server to send the recovery.bin file, then release the Reset button. The router will take a couple of minutes to reboot and set up the stock firmware. See the device's entry in OpenWrt's Wiki for more details [2]. Discussion: Use the dedicated thread in OpenWrt's forum to discuss any aspects [5]. Acknowledgments: The code to support this device is largely based on the sources kindly provided by Cudy in compliance with the GPL license. Thanks for supporting the OpenWrt community. Links: [1] https://www.cudy.com/blogs/faq/openwrt-software-download [2] https://openwrt.org/toh/cudy/lt400e_v1 [3] https://openwrt.org/docs/guide-user/network/wan/wwan/ethernetoverusb_cdc [4] https://openwrt.org/docs/guide-user/network/wan/wwan/at_commands [5] https://forum.openwrt.org/t/242466 [6] https://drive.google.com/drive/folders/1BKVarlwlNxf7uJUtRhuMGUqeCa5KpMnj Co-authored-by: rogerpueyo <roger.pueyo@guifi.net> Signed-off-by: Kamil Jońca <kjonca@onet.pl> Link: https://github.com/openwrt/openwrt/pull/21246 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
Sunshine!
Download
Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.
If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.
An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:
Development
To build your own firmware you need a GNU/Linux, BSD or macOS system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.
Requirements
You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.
binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.7+ rsync subversion unzip which
Quickstart
-
Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.
Related Repositories
The main repository uses multiple sub-repositories to manage packages of
different categories. All packages are installed via the OpenWrt package
manager called opkg. If you're looking to develop the web interface or port
packages to OpenWrt, please find the fitting repository below.
-
LuCI Web Interface: Modern and modular interface to control the device via a web browser.
-
OpenWrt Packages: Community repository of ported packages.
-
OpenWrt Routing: Packages specifically focused on (mesh) routing.
-
OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).
Support Information
For a list of supported devices see the OpenWrt Hardware Database
Documentation
Support Community
- Forum: For usage, projects, discussions and hardware advise.
- Support Chat: Channel
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0
