Brain Sensing

Introduction

The Brain Sensing category includes blocks that detect input from the VEX IQ (1st gen) Brain and report internal system values. These blocks allow your project to respond to button presses, monitor battery status, and determine the current screen cursor position when printing.

These blocks are often used in tandem with visual feedback tools such as the Screen or Console blocks, helping create interactive or responsive programs during runtime.

Below is a list of all blocks:

• Brain button pressed — Reports whether a specific brain button is currently pressed.

• battery capacity — Reports the brain’s current battery percentage.

• when Brain button — Runs the attached stack of blocks when a brain button is pressed or released.

Brain button pressed

The Brain button pressed Boolean block reports whether a brain button is currently being pressed.

• True — The specified button is being pressed.

• False — The specified button is not being pressed.

    <Brain [▲ v] button pressed?>

Parameters	Description
button	The button to check for a press: ▲ ▼ Check

Example

    when started
    [Spin when a Brain button is pressed.]
    wait until <Brain [▲ v] button pressed?>
    turn [right v] for (360) degrees ▶

battery capacity

The battery capacity reporter block reports the battery level, as a percentage from 0% to 100%.

    (battery capacity in %)

Parameters	Description
	This block has no parameters.

Example

    when started
    [Display the current battery capacity.]
    print (battery capacity in %) on screen ◀ and set cursor to next row

when Brain button

The when Brain button hat block runs the attached stack of blocks when the selected brain button is pressed or released.

When brain button event hat block

    when Brain [▲ v] button [pressed v]

Parameters	Description
buttons	Determines which button will trigger the event: ▲ ▼ Check
action	Determines when the attached stack of blocks will execute: pressed will run when a button is pressed, and released will run when a button is released.

Example

When the screen is pressed, the brain displays a text.

    when Brain [▲ v] button [pressed v]
    [Display a text when the ▲ button is pressed.]
    print [Hello, IQ!] on screen ◀ and set cursor to next row