Ultrasonic Sensor

R2026b

Represent connected Ultrasonic sensor and measure distance to object

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Ultrasonic Sensor block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simulink Coder Support Package for VEX EDR V5 Robot Brain / Sensors

Description

Add-On Required: This feature requires the Simulink Coder Support Package for VEX EDR V5 Robot Brain add-on.

The Ultrasonic Sensor block represents an Ultrasonic Sensor that is connected to the 3-wire ports of VEX EDR V5 Robot Brain, and measure the distance to the object in the path of the robot. The block enables the object detection when the object is in the range of 3 to 300 centimeters (cm) from the sensor. The block outputs a value 0 for an object that is farther than 300 cm.

Ports

Output

Port_1 — Distance read from the Echo port of the Ultrasonic sensor

centimeters

The distance (in cm) as read from the Echo port of the Ultrasonic Sensor connected to VEX V5 Robot Brain.

Data Types: double

Parameters

3-Wire Expander (smart port) — Select the smart port that is used by 3-Wire Expander

None (default) | 1 to 21

If you are using a 3-Wire Expander, specify the smart port on VEX^® EDR V5 Robot Brain to which the expander is connected.

OUTPUT (Echo port) — 3-wire port to which the Output port of Optical Shaft Encoder is connected

A (default) | C | E | G

Select the 3-wire port of VEX V5 Robot Brain to which the Echo port (output) of Ultrasonic sensor is connected. To know the output port, click the What is INPUT and OUTPUT? button.

After you select the OUTPUT (Echo port) in the block, the consecutive 3-wire port is assumed to be connected to the INPUT (Ping port) of the ultrasonic sensor. For example, if you select A as the OUTPUT (Echo port), it is assumed that B is connected to the INPUT (Ping) port of the ultrasonic sensor.

Sample time — Interval at which the block reads values

0.2 (default) | positive scalar | -1

Enter the time interval at which the block reads values from the ultrasonic sensor.

When you set this parameter to -1, Simulink^® determines the best sample time for the block based on the block context within the model.

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"vexv5lib/Sensors/Ultrasonic Sensor"

Example: add_block("vexv5lib/Sensors/Ultrasonic Sensor","myModel/myBlock",MakeNameUnique="on")

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2019b