Modules

Modules provide a way to access standard functions from the brick like motors, sensors and the screen.

The module command can be used to call blocks from your wheel code.

Each module has a unique numeric id. The VM calls the module based on the id passed. Within a module procedures can be called. The addr command can be used to let the src register point to a block of data which can then be used by the module.

The following example shows a call to the light module, the src register is pointed to the color variable.

proc light(number color, number pattern)
    addr color
    mod  MODULE_LIGHT, LIGHT_UPDATE
end

Standard modules

Wheel comes with the following standard modules:

Module	Function
Bit	Bit functions
Button	Read the EV3 buttons
Device	Select EV3 or Powered Up
File	Reading and writing files
Light	Control the EV3 light
Math	Math functions
Motor	Control EV3 motors
Powered Up	Control EV3 motors
PSP	Psp controller functions for EV3
Screen	Drawing functions
Sensor	Read and configure sensors
SensorMulti	Sensor multiplexer for EV3
Sound	Play tones or samples
Standard	Core functions
String	String functions
System	System functions for EV3

To build your own interfaces to control robots from the IDE there are several component modules available.
Input components:

Image	Module	Function
	Button	Buttons
	SelectButton	A horizontal list of buttons
	Checkbox	Checkbox
	Radio	A radio group
	Dropdown	Dropdown

Text components:

Image	Module	Function
	Label	A label and value text
	Title	A title text
	Text	A text block
	ItemList	A list of items with buller points

Panel components:

Image	Module	Function
	Panel	A panel which can contain components
	Tabs	Tabs with tab panels

Graphics components:

Image	Module	Function
	Rectangle	A rectangle with an optinal border
	Circle	A circle with an optinal border
	Image	An image
	Icon	An icon with a list of icon options

Status components:

Image	Module	Function
	StatusLight	A status light
	ProgressBar	A horizontal progress bar
	LoadingDots	Animating loading dots

Device components:

Image	Module	Function
	PoweredUpDevice	Displays Powered Up port information
	EV3Motor	Displays EV3 motor port information
	EV3Sensor	Displays EV3 sensor port information

Dialog components:

Image	Module	Function
	AlertDialog	An alert dialog
	ConfirmDialog	A confirm dialog

Non visual components:

Image	Module	Function
	Interval	Schedule a repeating event
	Timer	Scedule an event