WiSpher RS
www.wispher.net
User Manual
Version 1.2 22.01.2013 page 1
WiSpher RS
User Manual
WiSpher RS
www.wispher.net
User Manual
Version 1.2 22.01.2013 page 2
Table of Contents
TABLE OF CONTENTS ....................................................................................................................................... 2
ACCESSORIES ................................................................................................................................................... 3
IMPORTANT INFORMATION ............................................................................................................................3
LIMITATION OF LIABILITY ................................................................................................................................3
INTRODUCTION ...............................................................................................................................................4
CONNECTION................................................................................................................................................... 5
CONTROLS ....................................................................................................................................................... 6
DEVICE STATUS ................................................................................................................................................ 6
NETWORK CONFIGURATION AND CONNECTION ............................................................................................. 8
WI-FI A
CCESS POINT MODE
...................................................................................................................................... 8
WI-FI C
LIENT MODE
................................................................................................................................................ 9
RESTORING FACTORY SETTINGS .................................................................................................................... 10
TECHNICAL SPECIFICATION ............................................................................................................................ 11
WiSpher RS
www.wispher.net
User Manual
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Accessories
Ensure that the following accessories are included with WiSpher RS device:
- WiSpher RS node
- Power Supply
- USB cable
In case any accessory is missing please contact info@wispher.net
Important Information
ATTENTION:
Before you start to use WiSpher RS please read carefully this User Manual.
WARNING:
If the device or power supply is defective DO NOT attempt to repair it yourself. In case of damage
or malfunction please contact info@wispher.net
ATTENTION:
We are not responsible for any loss or damages caused by using WiSpher RS hardware. You do it
on your own risk.
NOTE:
All trademarks used in this document like LG, Android, Wi-Fi, etc. are the property of their respective
owners.
Limitation of Liability
UNDER NO CIRCUMSTANCES WE ARE LIABLE FOR ANY OF THE FOLLOWING: 1) LOSS OF, OR
DAMAGE TO YOUR RECORDS OR DATA OR DEVICES OR 2) SPECIAL, INCIDENTAL OR INDIRECT
DAMAGES OR FOR ANY ECONOMIC CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST
SAVINGS, COVER PURCHASES EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES; OR 3) PERSONAL INJURY TO THE FULLEST EXTENT THAT CAN BE DISCLAIMED BY LAW.
WiSpher RS
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User Manual
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Introduction
The WiSpher RS is the Wi-Fi to RS-232 converter, which together with the LG YARC application can
be used to control LG screens from the smartphone. It is compatible with the 802.11b/g standards.
Currently the LG YARC application is available only for the smartphones working under Android OS
control. The list of the compatible LG TVs can be found in the LG YARC application’s help. If your LG
TV model is not listed there but has the RS-232 connector on the back side marked as “CONTROL &
SERVICE”, there is huge possibility that it is also compatible with the WiSpher control set but it
cannot be guarantee.
It’s possible to use the WiSpher RS in two configurations. In the first, the converter is connected to
your TV and to your home Wi-Fi network. The smartphone with the LG YARC application must be
then connected to the same Wi-Fi network over the AP. The LG YARC application will send control
commands over your home network to the WiSpher node. The node will convert them to the control
commands acceptable by your TV.
LG
YARC
TV
WiSp he r RS
AP / Wi Fi Ro ut er
In the second configuration, it is possible to use WiSpher RS as the Wi-Fi Access Point and connect
the smartphone directly to Wi-Fi network created by WiSpher RS.
LG
YARC
TV
WiSp her RS
Access P oint
WiSpher RS
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User Manual
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Connection
The WiSpher RS shall be connected to your LG screen like shown on the diagram below.
RS-232C IN
(CONTROL & SERVICE)
Your TV
~110 / 220 V AC
WiSpher RS
Power Supply
US B cable
The D-SUB plug of the WiSpher shall be connected to the socket placed on the back side of your TV
and marked as RS-232C IN (CONTROL & SERVICE). The delivered power supply box shall be
connected with the WiSpher with the delivered USB cable. It is also possible to supply the WiSpher
node from any other standard USB port (like PC).
WARNING:
Do not use other power supply box than the one delivered with the WiSpher RS. Using another
power supply box can damage the WiSpher RS device and lead to the electrical shock.
ATTENTION:
Do not connect USB cable of the WiSpher node with the USB port of your TV. Usually those ports are
disabled in the standby mode of the TV, which will cause switching off the WiSpher RS every time
when the TV is switched off. This will prevent the LG YARC application to connect to the WiSpher RS
and control or wake up the TV screen.
WiSpher RS
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User Manual
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Controls
1
2
3
4
5
1. RS-232 Plug. Shall be connected to the socket on the back side of the TV.
2. WPS & RESET button. Use this button to start the WPS connection to existing Wi-Fi network
or to reset WiSpher to the factory settings.
3. Status LED of Wi-Fi network association. LED blinks in case WiSpher RS is not connected to
any Wi-Fi network (client mode) or if there is no device connected to the Wi-Fi network
created by WiSpher RS (Access Point mode)
4. Status LED of data transmission.
5. Status LED of TCP connection.
Device Status
The three LEDs placed on the top of the WiSpher transceiver, inform about current status of the
device.
In the Access Point mode (default delivery state):
Red Yellow Green State
Fast
blink
OFF Slow
blink
Access Point active. No device connected to the Access Point.
OFF OFF Slow
blink
Access Point active. At least one device connected to the Wi-Fi
network.
OFF OFF ON There is active TCP connection between client (i.e. smartphone
application) and the WiSpher RS
OFF Blink ON There is active TCP connection between client and WiSpher RS and
the WiSpher transmits or receive data
During Wi-Fi Protected Setup (see chapter Network Configuration to read how to activate WPS
procedure):
Red Yellow Green State
Fast
blink
OFF Slow
blink
No WPS active.
Fast
Blink
OFF OFF Wi-Fi Protected Setup (WPS) active. WiSpher RS is scanning for WPS-
enabled access points.
OFF ON OFF WiSpher RS has found WPS-enabled Access Point. Negotiation is in
progress.
OFF OFF Slow
blink
WPS procedure successful. The WiSpher device is connected to the
Access Point.
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In the Wi-Fi client mode (after WPS)
Red Yellow Green State
Fast
blink
OFF Slow
blink
No access to the Wi-Fi Access Point or connection with AP lost.
ON OFF OFF WiSpher RS is scanning for configured Access Point (this state is
temporary, about 1 second only)
OFF OFF Slow
Blink
WiSpher RS connected to the configured Wi-Fi Access Point.
OFF OFF ON There is active network connection to the WiSpher device (e.g. from
the smartphone)
OFF Blink ON There is active network connection to the WiSpher device and the
device receives or sends data.
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User Manual
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Network Configuration and Connection
As described above, the WiSpher RS can be configured in two modes:
- Wi-Fi Access Point
- Wi-Fi Client
Wi-Fi Access Point Mode
The Access Point mode is active by default (delivery state). In this mode the WiSpher RS device
creates Wi-Fi network with open security called “WiSpher RS”, to which any smartphone with Wi-Fi
interface can connect. To do this, connect the WiSpher RS to the power supply (the red and green
status LEDs shall blink) and go to the Wi-Fi settings in the smartphone. You should be able to see
“WiSpher RS” in the available Wi-Fi networks list.
If you cannot see the WiSpher RS network, this would mean that the module has been configured
for the Wi-Fi client mode. To change back to the access point mode please reset WiSpher RS to the
factory settings (see chapter Restoring Factory Settings).
To connect to this network simply click on the “WiSpher RS“ network and connect your phone to it.
From that point of time the red status LED on the WiSpher device shall stop blinking indicating that
there is at least one client connected to the Wi-Fi Access Point. You can start the LG YARC
application and start to control TV from the phone.
The WiSpher RS Access Point has following features:
- Access Point IP address: 192.168.1.1
- Up to 7 clients can be connected to AP
- Only one client can control RS-232 port at the same time
NOTE: When using WiSpher RS in AP mode please ensure that the IP address of the TV in the LG
YARC application is set to 192.168.1.1 (default setting after application installation).
WiSpher RS
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Wi-Fi Client Mode
It is possible to connect the WiSpher RS transceiver to already existing Wi-Fi network. To be able to
do this, the already used Access Point has to support Wi-Fi Protected Setup (WPS) functionality and
Dynamic Host Configuration Protocol (DHCP). To configure WiSpher RS device for existing Wi-Fi
network follow below instructions:
1. Connect WiSpher RS device to the power supply. The red status LED (3) blinks fast and the
green (5) slow.
2. Activate on your Wi-Fi access point WPS function.
3. Press and hold WPS button (1) until the green status LED (5) stops blinking. Then release the
WPS button.
4. After the WiSpher RS has found the Wi-Fi network with active WPS function, the yellow
status LED (4) goes ON and the red LED (3) stops blinking. The protocol negotiation between
AP and WiSpher RS is in progress. When the negotiation is successful the yellow LED (4) goes
off and the green LED (5) starts blinking slow. The red LED (3) shall stay off. The WiSpher has
been connected to your Wi-Fi network.
5. Check in AP configuration which IP address has been assigned to the WiSpher RS device and
use it in the LG YARC application settings.
It is possible to start WPS function again when the WiSpher RS is already connected as a client to a
Wi-Fi network and shall be switched to another one, by following above procedure.
In the Wi-Fi client mode the WiSpher RS supports following security protocols: WEP-128, WPA-PSK
(TKIP), and WPA2-PSK (AES).
WiSpher RS
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User Manual
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Restoring Factory Settings
Default WiSpher RS settings:
Parameter Value
Wi-Fi mode Access Point
Wi-Fi security Open
IP address 192.168.1.1
To restore factory / default settings for the WiSpher RS device please follow below steps:
1. Remove WiSpher RS from the TV socket (if plugged).
2. Disconnect power supply from WiSpher RS.
3. Press WPS/RESET button (2) and hold it.
4. Connect power supply to the WiSpher RS, while WPS/RESET button is pressed. In this state
all three status LEDs shall start blinking.
5. Release WPS/RESET button (2) and then press it 5 times for 1 second with 1 second pause
between pressings. (After fifth press the device will store command for the factory reset
during next start).
6. Disconnect power supply from the WiSpher RS for longer than 1 second.
7. Connect back power supply – the WiSpher RS will start with the default setting like in the
table above.
WiSpher RS
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User Manual
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Technical Specification
Value Parameter
Min. Typical Max.
Operating Temperature 10°C 65°C
Operating Relative Humidity <90%
Current consumption1 500mA
Power Supply Voltage 4V 5V 5.5V
Radio Frequency 2.402 GHz 2.480 GHz
Radio Modulation 802.11b compatibility: DSSS (CCK-11, CCK-5.5, DQPSK-2,
DBPSK-1); 802.11g: OFDM (default)
Radio channel intervals 5MHz
Radio channels 1 14
Transmission rate for 802.11b 1Mbps 11Mbps
Transmission rate for 802.11n 6Mbps 54Mbps
Receive sensitivity -83dBm
Radio output level -2dBm +12dBm
RS-232 baud rate 9600bps
RS-232 configuration 8N1
Dimensions 70 x 41 x 24 mm
1. Measured on WiSpher RS input at 5V power supply voltage.
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