sensehat

Create a Sense HAT object passing raspi object

Add-On Required: This feature requires the MATLAB Support Package for Raspberry Pi Hardware add-on.

Syntax

mysh = sensehat(mypi)

Description

mysh = sensehat(mypi) returns a sensehat object for the SenseHAT connected to the Raspberry Pi^® board. Using the sensehat object, you can use the Humidity sensor, Pressure sensor, IMU sensor, read the joystick status, and control the LED Matrix.

SenseHAT is reserved for a single use at the time of object creation. Once an object is created for the SenseHAT, mysh in the example below, you can treat the SenseHAT as if it is connected to the host computer.

You cannot create multiple objects that refer to the same SenseHAT. You can create multiple SenseHAT objects provided that they are connected to different Raspberry Pi boards.

Use the senseHAT object to read values from different sensors as follows:

• Humidity Sensor readHumidity.

• Pressure Sensor readPressure.

• Temperature Sensor readTemperature.

• IMU Sensor:

• • Read the angular velocity measured by Gyroscope readAngularVelocity.

  • Read the acceleration measured by Accelerometer readAcceleration.

  • Read the magnetic field measured by Magnetometer readMagneticField.

• LED Matrix:

  • Write pixel writePixel.

  • Display an image displayImage.

  • Display message displayMessage.

  • Clear LED Matrix clearLEDMatrix.

• Joystick - Read the joystick status readJoystick.

Examples

Create SenseHAT object

You can create SenseHAT object passing raspi (Raspberry Pi) object as the first parameter to the constructor. Using this sensehat object, you can read the values from the sensors on-board, read the status of the job stick, and write to the LED Matrix.

Create a SenseHAT object mysh, from the MATLAB^® software to the SenseHAT Board.

mysh = sensehat(mypi);

This function creates a senseHAT object ‘mysh’ for the SenseHAT connected to a Raspberry Pi board.

Input Arguments

mypi — Connection to specific Raspberry Pi hardware board

raspi object

Connection to a specific Raspberry Pi hardware board, specified as a raspi object.

Output Arguments

mysh — Connection to Raspberry Pi SenseHAT board

Sense HAT object

Connection to Raspberry Pi SenseHAT board.

You can use mysh with the following methods:

• readHumidity

• readPressure

• readTemperature

• readAngularVelocity

• readAcceleration

• readMagneticField

• readJoystick

• writePixel

• displayImage

• displayMessage

• clearLEDMatrix

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using MATLAB® Coder™.

• You can also deploy sensehat on the Raspberry Pi hardware in MATLAB Online™.

Version History

Introduced in R2016b