Updating Wi-Fi Settings
One of the first recommendations made to users of the REV Control System is to update Wi-Fi settings, specifically the name and the password. All REV Control Hub's come with a default network name and password. It is useful to change the name and password especially in environments where there are multiple Control Hubs running like at an event or in a classroom. Changing from the default adds the element of network security back to the Hub by reducing the potential for access from outside sources.
With the release of Robot Controller Application 5.5 there have been some major changes to the process of changing Control Hub name, password, Wi-Fi Channel, and Wi-Fi band. Previously changes to the name and password had to be made separately. Each change would reset the network and require users to reconnect to the network in order to change anything else. With 5.5 all changes can be made at once.
The Control Hub (REV-31-1595) can utilize either the 2.4 GHz or 5 GHz Wi-Fi band. In OS versions 1.1.1 and older the Control hub defaults to a channel on the 2.4 GHz band. REV Robotics advises that during competition teams utilize a 5 GHz channel for robot communication. Consult the table below for Driver Station devices that can operate on the 5 GHz band.
The following section will highlight how to access and make changes within the Wi-Fi settings. This section will use the REV Hardware Client to showcase how to make these changes. Once a user has connected to the Robot Controller Console, either via the Hardware Client or a web browser, the steps for accessing Wi-Fi settings are the same.
While in the Robot Controller Console select the menu button. In the image below the menu button is highlighted by an orange square in the upper right-hand corner.
When the menu opens, select Manage.
The Manage page is where the Wi-Fi Settings live. The following steps will show and discuss each change as it is made. Please keep in mind the following warning while moving through the steps:
You will need to reconnect to the new Wi-Fi network after changing the name and/or password. This is true for any Wi-Fi connection, but if you are accessing the REV Hardware Client via a USB connection the Hub will stay connected. Though, you may need to close and reopen the Hardware Client in order to see the changes.
Under Wi-Fi Settings, there is an option to change the name of the Control Hub.
For FTC teams you will want to change the name from the default to team number - RC. (i.e. 99999-RC)
Under Wi-Fi Settings, there is an option to change the password of the Control Hub. There are not any restrictions on the password. Changing it from the default is advised but it does not have to change to anything complicated.
The Robot Controller Console makes it easy to change between the 2.4 GHz an 5GHz bands. It is advised to check the Legal Android and Wi-Fi Band Capabilities table to determine which band to operate in.
Once a Wi-Fi band is chosen there are two options for dealing with Wi-Fi channels. One option is to let the Control Hub auto default on a channel. The other is to set a specific channel. Both options can be accessed via the drop down menu under the Wi-Fi channel section of the Wi-Fi settings.
It is valuable to know how to change the Wi-Fi Band and Channel as technical staff at an event can request to change those settings.