Techdata: MediaTek LinkIt Smart 7688 Duo

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For conventions / allowed values, see below
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Searching for installation instructions, bootlogs, other info? See link to Device Page below.

Dataentry

Device Type:: Single Board Computer
Brand:: MediaTek
Model:: LinkIt Smart 7688
Version:: Duo
FCCID:: https://fcc.io/Z4T/-LINKITS7688D
Where available:: seeedstudio.com
Supported Since Commit:: https://git.lede-project.org/?p=source.git;a=commit;h=51dd991d3957a33f102c9887da379263599c395f
Supported Since Rel:: 15.05.1
Supported Current Rel:: 23.05.4
Gluon support:: unknown
Target:: ramips
Subtarget:: mt76x8
Package architecture:: mipsel_24kc
Bootloader:: U-Boot
CPU:: MediaTek MT7688AN
CPU Cores:: 1
CPU MHz:: 580
Flash MB:: 32, microSD
RAM MB:: 128
Ethernet 100M ports:: 1
Ethernet 1Gbit ports:: -
Ethernet 2.5Gbit ports:: -
Ethernet 5Gbit ports:: -
Ethernet 10Gbit ports:: -
SFP ports:: -
SFP+ ports:: -
Switch:: -
VLAN:: ¿
Modem:: -
WLAN Hardware:: MediaTek MT7688AN
WLAN 2.4GHz:: b/g/n
WLAN 5.0GHz:: -
WLAN Comments:: 1x1:1 MIMO
WLAN driver:: mt76
Detachable Antennas:: 1
Bluetooth:: -
miniPCI ports:: -
USB ports:: 1x 2.0, 1x µUSB (power)
SATA ports:: -
Video ports:: -
Audio ports:: -
Phone ports:: -
Serial:: Yes
Serial connection parameters:: 57600 / 8N1
Serial connection voltage:: 3.3
JTAG:: Yes
LED count:: 2
Button count:: 2
GPIOs:: more than 20
Power Supply:: 5 VDC, 2.0 A
Outdoor:: No
OpenVPN performance:: ¿
Wireguard performance:: ¿
Device Page:: linkit7688
Forum search:: LinkIt Smart 7688
Git search:: LinkIt Smart 7688
WikiDevi URL:: https://wikidevi.wi-cat.ru/SeeedStudio_LinkIt_Smart_7688_Duo
WikiDevi ID:: SeeedStudio_LinkIt_Smart_7688_Duo
OEM Device Homepage URL:: https://www.seeedstudio.com/LinkIt-Smart-7688-Duo.html
Firmware OEM Stock URL:: https://¿
Firmware OpenWrt Install URL:: https://downloads.openwrt.org/releases/23.05.4/targets/ramips/mt76x8/openwrt-23.05.4-ramips-mt76x8-mediatek_linkit-smart-7688-squashfs-sysupgrade.bin
Firmware OpenWrt Upgrade URL:: https://downloads.openwrt.org/releases/23.05.4/targets/ramips/mt76x8/openwrt-23.05.4-ramips-mt76x8-mediatek_linkit-smart-7688-squashfs-sysupgrade.bin
Firmware OpenWrt snapshot Install URL:: https://downloads.openwrt.org/snapshots/targets/ramips/mt76x8/openwrt-ramips-mt76x8-mediatek_linkit-smart-7688-squashfs-sysupgrade.bin
Firmware OpenWrt snapshot Upgrade URL:: https://downloads.openwrt.org/snapshots/targets/ramips/mt76x8/openwrt-ramips-mt76x8-mediatek_linkit-smart-7688-squashfs-sysupgrade.bin
Installation method(s):: U-Boot USB recovery
Recovery method(s):: U-Boot USB recovery
Picture:
Comments:: Contains ATmega32u4 and is compatible with Arduino Yún sketches

Conventions for dataentry values

General nomenclature

¿         : unknown (ALT+168; used for filtering reasons. Please avoid '?' and use '¿' instead)
¿ xxx     : unknown, xxx is a qualified guess (only for non-dropdown fields)
-         : not applicable / hardware not present
8, 16, 32 : different configurations available (',' = OR; use space after ',' to allow linebreaking)

Conventions per characteristic

Details

underlined characteristic = mandatory

Characteristic	Description	Example	Datatype	Datatype alias	Convention / allowed values

General
Device Type	Device Type	Wireless router	select (dropdown)	_devicetype	WiFi AP, WiFi Router, Router, Travel Router, Travel Router - Battery powered, Range Extender, Single Board Computer, Modem, NAS, unknown, other If 'other' → request new devicetype @wiki admin
*Brand*	Brand of the device	D-Link	select (dropdown)	_brand	Too many to show here. If 'other' → request new Brand @wiki admin
*Model*	Exact Model	DIR-509	textbox		no restrictions, anything is possible
Version	HW revision	v0.99	textbox		empty (default) / v1 / v1, v2 / ... (no restrictions, anything is possible) Multiple entries (comma separated) allowed if same hardware specs. If hardware different (e.g. v1=32MB RAM; v2=64MB RAM) → add new dataentry-page.
FCCid	FCC id	https://fcc.io/KA2/IR505A1	_urls		link-scheme: https://fcc.io/yourFCCid
Availability	Availability / Discontinuation of the device	Available 2020	select (dropdown)	_availability	Can you buy it TODAY? → Available <year-of-today>; DO NOT enter a year in the past! Make sure to check multiple sites over the globe! unknown 2020, unknown 2019, unknown 2018, Available 2020, Available 2019, Available 2018, Available 2017, Discontinued 2020, Discontinued 2019, Discontinued 2018, Discontinued 2017, Discontinued 2016, Discontinued 2015, Discontinued 2014, Discontinued 2013, Discontinued 2012, Discontinued 2011, Discontinued 2010, Discontinued
Where available	Website where this device can be purchased	amazon.com	textbox		website without http... and no deep link, just the website, eg. amazon.com. List multiple values comma separated.
OpenWrt Support
Supported since commit	git commit, which provided first ever support for this device; “Birthpoint” of support	https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=42914b0b0e47237400a825a54189d707abd86693	textbox	_git	empty (default) / Link scheme: https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=<commithash> Find commit via the search on https://git.openwrt.org/?p=openwrt/openwrt.git;a=summary
Supported since release	First official release (no snapshot)	17.01	select (dropdown)	_releasesince	¿, 17.01, 17.07, 18.01
Supported current release	Current official release	17.01	select (dropdown)	_releasecurrent	¿, 17.01, snapshot “snapshot” for devices that don't have major release yet. If device no longer supported, then 'Current support' means 'Last support'.
Image too big	Release which is too big to save settings	18.06.0	select (dropdown)	_releasecurrents	CTRL+click for multiselect; Report devices which can't save settings due to too big image in the OpenWrt forum. Devices with non-empty datafield will be shown in Table of Hardware: Image too big to save overlay / save settings
Unsupported functions	Describe what is not supported	5GHz wifi, ADSL, FXS	page	_unsupporteds	Values in this field link to pages explaining in detail what is unsupported and why, what the concequences are and what you can do about it. List multiple values comma separated. Keep the values as short as possible, don't write books in here!
Gluon support	Gluon support status	unknown	select (dropdown)	_gluonsupport	Yes, No, Broken, unknown
Hardware
Target	Target	ar71xx	select (dropdown)	_target	Only existing targets allowed, i.e. only what can be found here: http://downloads.openwrt.org/snapshots/ or here targets (¿=unknown, -=architecture not supported)
Subtarget	Subtarget	generic	textbox
Package architecture		mips_24kc	select (dropdown)	_pkg-arch	See targets
Bootloader	Bootloader	U-Boot 1.1.4	select (dropdown)	_bootloader	If 'other' → request new bootloader @wiki admin
CPU	Platform / SoC	Atheros AR9331	textbox		see soc
CPU cores	Number of CPU cores	2		_numcores_	¿, 1, 2, 4, 6, 8, 10, 12, 14, 16, more than 16
CPU MHz	the obvious	400	textbox		numerical values w/o MHz or GHz
Flash MB	the obvious	8	select (dropdown)	_mbflashs	Multiple values allowed; CTRL-click for multiselect; ¿, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 64NAND, 128NAND, 256NAND, 512NAND, 1024NAND, 2048NAND, 4096NAND, 8192NAND, more than 8GB, more than 8GB NAND, SD, microSD, microSDHC, CF, mSATA
RAM MB	the obvious	64	select (dropdown)	_mbram	¿, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, more than 4GB
Network
Ethernet 100M ports	Number of 100Mbit ethernet ports	1	select (dropdown)	_numethport	¿, -, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, more than 20
Ethernet GBit ports	Number of Gbit ethernet ports	1	select (dropdown)	_numethport	¿, -, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, more than 20
Switch	Switch hardware	Broadcom BCM5325	textbox
VLAN	VLAN capability	Yes	select (dropdown)	_yesno	¿, Yes, No
Modem	Type of integrated modem	xDSL	select (dropdown)	_modem	¿, Yes, No, ADSL, ADSL2+, ADSL2+ Annex A, ADSL2+ Annex B, xDSL, DOCSIS, Powerline, Mobile Wireless/Cellular network http://wiki.openwrt.org/meta/template_device#info
Comments network ports	Comments on Ethernet, Fibre and Modem		textbox		If PoE supported, enter below under “Power Supply”
Wireless
WLAN Hardware		Broadcom BCM43225	textbox		“Manufacturer Model# [(onboard/integrated/(mini-)PCI(e))]” / “#x (mini-)PCI(e)”
WLAN 2.4GHz	Wireless standard(s) the device is capable of	b/g/n	select (dropdown)	_wlan24	¿, -, b, b/g, b/g/n
WLAN 5.0GHz	Wireless standard(s) the device is capable of	a/n/ac	select (dropdown)	_wlan50	¿, -, a, a/n, a/n/ac
WLAN Comments	MIMO and other WIFI information	2×2 MIMO	textbox
WLAN drivers	WLAN driver	b43	select (dropdown) page	_wlan_drivers	, -, ath5k, ath9k, ath10k, b43, b43 legacy, brcmfmac, brcmsmac, mt76, mwlwifi, rt2500pci, rt2800pci, rt2800usb, rtl819x, unknown, other See WLAN drivers
Detachable Antennas	# of detacheable antennas	3	select (dropdown)	_numdetachantenna	¿, -, Yes, No, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, more than 10
Bluetooth	Bluetooth version	4.2	select (dropdown)	_bluetooth	¿, -, 4.0, 4.1, 4.2, 5.0, BLE, other
Other interfaces
miniPCI Ports	# of mini-PCI ports	3x miniPCIe	select (dropdown)	_port-minipci	Select number of miniPCI(e) ports
USB ports	# of USB 2.0 + USB 3.0 ports	1x 2.0, 2x 3.0	multiselect	_usbmultiselect	¿, -, Yes, 1x 1.1, 1x 1.1 Device, 1x 2.0, 1x 2.0 Device, 2x 2.0, 3x 2.0, 4x 2.0, 5x 2.0, 6x 2.0, more than 6x 2.0, 1x 3.0, 2x 3.0, 3x 3.0, 4x 3.0, 5x 3.0, 6x 3.0, more than 6x 3.0, Mod, 1x Device, 1x Header, 1x OTG, 1x µUSB (charging), 1x Power only Notes: - Device = Slave = Client (= everything that's not a host); Device preferred over the others. - use “Host” only when needed - if “mod” → provide URL to Howto/Forum
SATA ports	# of SATA or eSATA ports	2	select (dropdown)	_numsataport	¿, -, 1, 2, 3, 4, 5, 6, more than 6
Comments USB SATA ports	the obvious	?	textbox
Video ports	Kind of video port	HDMI	select (dropdown)	_port-videos	Multiple possible; CTRL-click for multiselect; ¿, -, Composite, DP, mDP, HDMI, LVDS, VGA, other
Audio ports	Kind of audio port	Line out	select (dropdown)	_port-audios	Multiple possible; CTRL-click for multiselect; ¿, -, Line, Headphone jack, HDMI, S/PDIF, other
Phone ports		2	select (dropdown)	_port-phones	Multiple possible; CTRL-click for multiselect; ¿, -, 1, 2, 3, 4, 5, 6, more than 6, POTS, DECT
Comments AV ports	Comments on Audio, Video, Phone ports	Requires a special cable in order to use composite video	textbox
Serial	Availability of serial access	Yes	select (dropdown)	_yesno	¿, Yes, No
Serial connection parameters	the obvious	115200 / 8N1	select (dropdown)	_serialparam	¿, 19200 / 8N1, 38400 / 8N1, 57600 / 8N1, 115200 / 8N1
Serial voltage level	the obvious	3.3	select (dropdown)	_serialvoltage	¿, 5, 3.3, 2.5, 1.8, 15
JTAG	Availability of JTAG access	Yes	select (dropdown)	_yesno	¿, Yes, No
Other hardware
LED Count	# of LEDs	5	select (dropdown)	_numled	¿, -, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, more than 20 → relevancy? see https://forum.openwrt.org/viewtopic.php?pid=275491#p275491
Buttons	Button/switch types available	WPS	select (dropdown)	_numbutton	¿, -, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, more than 20 → relevancy? see also https://forum.openwrt.org/viewtopic.php?pid=275491#p275491
GPIOs	Number of readily accessible GPIOs (e.g. via pinheader)	17	select (dropdown)	_numgpio	¿, -, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, more than 20
Power supply	Specifications of Power Supply (Volt, Amp, PoE) or Battery (Volt, mAh)	12 VDC, 1.2 A, PoE 802.3af	textbox		If PoE capable: PoE <PoE spec>, e.g. PoE 802.3af
OpenVPN performance	max Mbit achievable with OpenVPN	23	textbox		max Mbit achievable with OpenVPN
Wireguard performance	max Mbit achievable with Wireguard	68	textbox		max Mbit achievable with Wireguard
Links
Device Page	Link to Wiki-page	toh:d-link:dir-509	page		toh:brand:model
Device Techdata	How the link to the dataentry page will be named (not the link itself)	Techdata		_hidden / _pageid	Techdata (fixed setting for all devices, not to be edited) Mandatory usage of types: `_hidden` = in the dataentry → will not be shown `_pageid` = in datatables / datalists → shows up as link
OWrt Forum Topic URL	Link(s) to forum thread(s)	https://forum.openwrt.org/t/dir-505-successor/21420	textbox	_urls	https://forum.openwrt.org/...
Forum search	query to search for latest forum postings related to this device	DIR-505	textbox	_search-forums
Git search	query to search for latest git commits related to this device; might need some tweaking to deliver useful results.	DIR-505	textbox	_search-gits
WikiDevi URL	Link to wikidevi	https://wikidevi.wi-cat.ru/wiki/D-Link_DIR-515	textbox	_url	https://wikidevi.wi-cat.ru/wiki/...
WikiDevi ID		D-Link_DIR-515	textbox	_hwinfo-id	Enter only <yourdevice> from https://wikidevi.wi-cat.ru/<yourdevice>
OEM device homepage	Link to manufacturers device page	https://us.dlink.com/products/connect/shareport-mobile-companion/	textbox	_url	https://...
Firmware OEM Stock	Link to original OEM firmware	http://support.dlink.com/ProductInfo.aspx?m=DIR-505L	textbox	_url	https://... Do not link directly to the file, but rather to the download or support page. This avoids the need for updating the link with each new firmware revision.
Firmware OpenWrt Install	Link to OpenWrt release factory image	http://downloads.openwrt.org/releases/17.01.4/targets/ar71xx/generic/lede-17.01.4-ar71xx-generic-dir-505-a1-squashfs-factory.bin	textbox	_urls	http://downloads.openwrt.org/releases/...factory.bin
Firmware OpenWrt Upgrade	Link to OpenWrt release sysupgrade image	http://downloads.openwrt.org/releases/17.01.4/targets/ar71xx/generic/lede-17.01.4-ar71xx-generic-dir-505-a1-squashfs-factory.bin	textbox	_urls	http://downloads.openwrt.org/releases/...sysupgrade.bin
Firmware OpenWrt snapshot Install	Link to OpenWrt snapshot factory image	http://downloads.openwrt.org/snapshots/targets/ar71xx/generic/lede-ar71xx-generic-dir-505-a1-squashfs-factory.bin	textbox	_urls	http://downloads.openwrt.org/snapshots/targets/...factory.bin
Firmware OpenWrt snapshot Upgrade	Link to OpenWrt snapshot sysupgrade image	http://downloads.openwrt.org/snapshots/targets/ar71xx/generic/lede-ar71xx-generic-dir-505-a1-squashfs-sysupgrade.bin	textbox	_urls	http://downloads.openwrt.org/snapshots/targets/...sysupgrade.bin
Installation methods	Installation methods available for this device	D-Link recovery GUI	select (dropdown) page	_method-installations	CTRL+click for multiselect TFTP, GUI, CLI, D-Link recovery GUI, unknown, other
Comment installation		Rename image to 'firmware.bin' before flashing.	textbox		SHORT (!) comments like “rename image to 'firmware.bin' before flashing.”
Recovery methods	Installation methods available for this device	TFTP	select (dropdown) page	_method-recovery	CTRL+click for multiselect TFTP, GUI, CLI, D-Link recovery GUI, unknown, other
Comment recovery		Rename image to 'firmware.bin' before flashing.	textbox		SHORT (!) comments like “rename image to 'firmware.bin' before flashing.”
Picture	Single general picture (outside/case) to identify the device; Put more detail pictures (inside/PCB) on device page	`:media:dlink:dir-509.jpg`		_img100s	1) Get picture from OEM website (min 640×480; max 1280×720, max 1MB) 2) Store it in the OpenWrt wiki via the media-manager: `media:toh:brand:brand_model_general_view.jpg` 3) Get link to picture: Find picture in media manager, click on it, scroll down, copy the link 4) Add link to the dataentry. Do not link to OEM website, because that link may change.
Misc
Comments	Anything that's worth mentioning	Nice colour! Small formfactor (wallwart-sized)	textbox		The only restriction: Keep it SHORT! Put any detailed content which needs more space on the devicepage.

Techdata: MediaTek LinkIt Smart 7688 Duo

Usage

Dataentry

Conventions for dataentry values

General nomenclature

Conventions per characteristic