Connecting with App-based VEXcode IQ to an IQ (2nd gen) Brain - Android

It takes just a few steps to connect a VEX (2nd generation) IQ Brain to App-Based VEXcode IQ on your Android device. Before beginning, make sure that you know the name of your Brain. For help naming your Brain see this article.

Diagram showing how to insert the battery into the VEX IQ Gen 2 robot brain, illustrating the correct orientation and connection points for educational purposes in robotics.

Insert the Battery into the IQ Brain.

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Turn on the IQ Brain by pressing the checkmark button.

VEXcode IQ icon representing the VEX IQ Robotics platform, designed for educational purposes and beginner robotics enthusiasts, featured in the knowledge base section on connecting to the Brain using the app.

Launch app-based VEXcode IQ.

Screenshot of the VEX IQ app interface showing connection options to the robot brain, including step-by-step instructions for establishing a connection, displayed on a computer screen.

You may get a message asking you to allow the app to access your files. Select 'Allow'.

Screenshot showing the VEX IQ app interface for connecting to the robot brain, with visual instructions and options for establishing a connection, designed for educational purposes and beginner robotics enthusiasts.

Select the Device window icon to open the Devices window.

Screenshot showing the VEX IQ app interface for connecting to the robot brain, highlighting key features and options for users to establish a connection and manage their robotics projects effectively.

Select the '2nd gen' button to indicate you are connecting to a (2nd gen) Brain, then close the Devices window

Screenshot of the VEX IQ app interface showing connection options to the VEX IQ Brain, including device pairing instructions and visual indicators for successful connection.

Select the Brain Button.

Screenshot of the VEX IQ app interface showing connection options to the VEX IQ Brain, including visual indicators and instructions for establishing a connection for programming and control.

Once a Brain is chosen, select the ‘Connect to IQ (2nd Gen)’ button.

Screenshot showing the VEX IQ app interface for connecting to the robot brain, featuring connection options and settings for programming and controlling VEX IQ robotics systems.

When selecting ‘Connect to IQ (2nd Gen)’ you may receive a prompt asking to verify location access. Select ‘Allow only while using the app’.

Note: This window opens the first time you connect with an android device after installing the VEXcode IQ app, or or if you disable the location permission for the app.

Illustration of the VEX IQ Brain interface, showcasing the connection options for the VEX IQ robotics platform, designed for educational use and beginner robotics enthusiasts.

The Brain icon will turn orange and a ‘Scanning’ message will appear while the Brain is connecting.  Then, a list of available IQ Brains will appear. Select the name of the brain you want to connect to.

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Once a Brain is chosen, select the 'Connect' button.

Screenshot of the VEX IQ app interface showing steps to connect the VEX IQ brain to a device via Bluetooth, illustrating the connection process for users in the educational robotics context.

A four-digit connection code will appear on the Brain's screen.

Screenshot of the VEX IQ app interface showing connection options to the robot brain, including step-by-step instructions for establishing a connection, designed for educational use in robotics.

Type the code into the prompt in the app and select 'submit'.

Screenshot of the VEX IQ app interface showing how to connect to the Brain, featuring step-by-step instructions and visual elements to guide users in establishing a connection for programming and controlling their VEX IQ robots.

The Brain icon will turn green to indicate it is connected. If you select the Brain icon, it will indicate the name of the Brain is it connected to.


To Disconnect a VEX IQ Brain from App-based VEXcode IQ

Screenshot showing the VEX IQ app interface for connecting to the robot brain, including options for Bluetooth pairing and device selection, aimed at helping users establish communication for programming and control.

Select ‘Disconnect’ to disconnect your IQ (2nd generation) Brain from VEXcode IQ.


If You Are Experiencing Connection Issues

For more information, help, and tips, check out the many resources at VEX Professional Development Plus

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