FAQ

Frequently asked questions and answers about FlashAir

The SSID must be between 1 - 32 characters, without spaces.

The default network key is "12345678".

Please set Network security key using 8 - 64 characters without spaces. You can also set it to "0", which will disable the security key.

For general usage inquiries (e.g. Compatible devices, how to use iOS/Android apps, how to connect to WiFi, etc), FlashAir failure, and connection trouble, please contact local dealers or the following support center directly.
https://business.toshiba-memory.com/en-jp/contact.html

Anyone can check the SSID in the CONFIG file. Password characters you set will be replaced with "*" by restarting FlashAir, so it can be unknown to anyone other than the setter.

The master code is a 12-digit hexadecimal number which is used as a password to set the SSID (APPSSID) and network security key (APPNETWORKKEY).
If the master code is not yet set, please set it via config.cgi before changing any other settings.

The master code is written in the CONFIG file on the FlashAir.
The CONFIG file is located in /SD_WLAN/, and you can open it with general text editors.

Please confirm the browser terminal and the wireless LAN parent device are compatible with protocols FlashAir supports (NetBIOS over TCP/IP and Bonjour). For more information, see "Supported protocols" in Advanced Tutorials - Using Station Mode.

By default, the function of uploading data to FlashAir is disabled. For more information about how to activate it and upload data, please refer to the following pages.

• API Guide - upload.cgi
• Advanced Tutorials - Uploading to FlashAir

Yes, you can. There are two methods, to edit the CONFIG file and to execute a Lua script.

Method 1: Editing the CONFIG file

Add and edit the following specification to the CONFIG file.
From top to bottom, disabling DHCP, IP address you want to specify for FlashAir, subnet mask of wireless LAN, and default gateway of wireless LAN (Note: Please configure the value according to an environment of a wireless access point).

DHCP_Enabled=NO
IP_Address=192.168.43.10
Subnet_Mask=255.255.255.0
Default_Gateway=192.168.43.1

Method 2: Executing a Lua script

Insert the following Lua function to a script to be executed.
From left to right, IP address you want to specify for FlashAir, subnet mask of wireless LAN, and default gateway of wireless LAN. (Note: Please configure the value according to an environment of a wireless access point).

fa.ip("192.168.11.2", "255.255.255.0", "192.168.11.1")

For more information about the each above, see API Guide - CONFIG and Lua Function Reference - ip.

It is possible to connect with FW 4.00.03 or higher. For details, please see the API Guide - CONFIG EAPTYPE.

The "/" slash at the end of the folder name is not necessary. Please delete it and try again.

command.cgi?op=101 returns the number of non-hidden files/folders.
On the other hand, command.cgi?op=100 returns the number of all files/folders.

command.cgi?op=105 is available only when the FlashAir is set as an Access Point.
To learn more about Access Point mode, please read Wireless LAN mode.

command.cgi?op=111 is available only when the FlashAir is set to boot Wireless LAN functionality when the card is turned on (APPMODE=4).
To learn more about APPMODE, please read Wireless LAN mode.

Yes, it is saved.

Please confirm "UPLOAD=1" is written in the CONFIG file. Without this setting, upload.cgi is disabled. For more information, see upload.cgi.

Host devices cannot recognize changes made by upload.cgi. This means the unfortunate situation of a file list from a host device not updating after a file has already been deleted. For more information, see upload.cgi.

You can avoid browser caching by setting additional parameters which will create different URLs each time CGI is issued as follows:

http://flashair/command.cgi?op=...&TIME=100	// First GET request
http://flashair/command.cgi?op=...&TIME=101	// Second GET request
http://flashair/command.cgi?op=...&TIME=102	// Third GET request
// Repeat similarly to the above.

Information about CONFIG file, please see API Guide - CONFIG.

Execute processing to clear the disk cache owned by the OS on the SD memory card host side or restart the host device.
Please refer also to the tutorial which remounts FlashAir and reloads it with OS.

Bridge operation is not available while wireless LAN is active. If you want to switch to Internet Pass-Thru Mode with Lua script, we recommend you to use the manual wireless LAN mode by setting "APPMODE=0" to the CONFIG.

Scan operation is not available while wireless LAN is active. You can use this instead by temporarily disabling a wireless LAN activation with Disconnect.

It is not available to specify SSID when using Scan.

It can be confirmed by using Control SD Interface as user I/O, and also the Lua script as follows.

local response = fa.request("http://flashair/command.cgi?op=190&CTRL=0x00&DATA=0x00")
local gpio = cjson.decode(response)
local status = gpio["STATUS"]
if status == "OK" then
-- GPIO function is enabled
elseif status == "SDERR" then
-- GPIO function is disable
end

The response of CGI executed in the first line of the above code will be, for example,

{"STATUS":"OK", "CTRL":"0x00", "DATA":"0x00"}

, and a status of GPIO function can be determined by the value of STATUS.

• When GPIO function is enabled: "OK"
• When GPIO function is disabled: "SDERR"

Originally, host processing takes priority.
In addtion, if you read and write to the same file with Lua script while writing files on the host side, Lua script processing may become unstable.

The power consumption of FlashAir is within the range of SDHC standards (up to 0.72W at 3.6V).
However, the current fluctuation during start-up and transmission may differ from a generic SDHC card.

Unfortunately, there is no way to change the power parameters.

Unfortunately, this feature is not open to the public.

Web server works with the root directory of FlashAir flash memory (a part accessible as SD card) as a document root. It will always start-up when FlashAir is powered on.

Although it can be used as an SD card, the web server will not work properly. For the FlashAir web server to work properly, the file system must be FAT.

FlashAir supports Shift-JIS for the first generation, and UTF-8 in the range of ASCII, Japanese and Chinese for the second generation and later.

The firmware can not be updated.

FlashAir IoT Hub will end its service on July 31, 2019 at 10:00(JST). Therefore, as of May 8, 2019 10:00(JST), account new registration was finished. Please use other cloud services for file upload. Please refer to the following tutorial about file upload.

• Uploading a file to Dropbox, with OAUTH2
• Uploading to Google Drive with Lua
• Connecting from FlashAir to Amazon AWS 1 (Preparation)
• Connecting from FlashAir to Amazon AWS 2 (Execution)

Please refer to Application to IoT for the systems and Web services that support FlashAir's IoT.

Regarding Internet Pass-Thru Mode, the following vulnerability exists.

1. FlashAir accepts a connection from a device on STA (station) side LAN without authentication.
2. Files and data saved in FlashAir can be altered or an arbitrary Lua script can be executed.

1. occurs when all of the following conditions are satisfied.

• Internet Pass-Thru Mode is enabled. (Refer to APPMODE)
• FlashAir and a device on STA side LAN are connected to the same access point.
• FlashAir IP address is known.

2. occurs when the following conditions are satisfied in addition to the above three.

• Upload (write) setting via wireless LAN is enabled. (Refer to UPLOAD)

The vulnerability can be avoided by setting to require authentication to the FlashAir web server.

• HTTPDMODE — Authentication method
• HTTPDUSER — Authentication user name
• HTTPDPASS — Authentication password

By default, both Internet Pass-Thru Mode and upload setting via wireless LAN are disabled and there are no impacts from the vulnerability. These settings will not be enabled unless a user explicitly changes CONFIG file directly or using Apps.
For more information about how to change these settings, see advanced tutorials - Using Internet Pass-Thru Mode and advanced tutorials - Uploading to FlashAir.

Yes. The following tutorials will be helpful to building an upload environment.

• Lua Scripting - Uploading a file with FTP
• Lua Scripting - Uploading to Facebook
• Lua Scripting - Uploading a file to Dropbox, with OAUTH2

In addition, in the case of uploading image files, you can also use an image function of FlashAir Developer service FlashAir IoT Hub.

Please contact the author mentioned in the article.

At the moment, we do not have libraries or tutorials for Arduino Due. Please refer to operation validated tutorials for Arduino Uno.

No, you can not access the data on your PC via FlashAir.

Eyefi Connected is a camera cooperative function that controls SD memory card from the camera itself. If you use it with Eyefi interlocked camera with power control, you can prevent auto power off of camera during a data transfer. For more information, please read
https://www.toshiba-memory.com/products/toshiba-wireless-sd-cards-flashair-w-04/

To use FlashAir with the Keenai™ application, please read
https://help.keenai.com/hc/en-us/sections/206542628

Please execute some processing to clear the disk cache of the OS on the SD memory card host side or restart the host device.
Please refer also to the tutorial which remounts FlashAir and reloads it with OS.
We also recommend using prototyping board if in development stage.