Raspberry

Raspberry

Splashkit allows you to read and write to the GPIO pins on the Raspberry Pi.

Functions

Has Gpio

Checks if the system has GPIO capabilities.

Return Type: Boolean

Signatures:

C++

bool has_gpio()

C#

public static bool SplashKit.HasGpio();

Python

def has_gpio():

Pascal

function HasGpio(): Boolean

---

Raspi Cleanup

This function should be called when you are finished using the GPIO library. It sets all pin modes to INPUT and values to LOW.

Usage:

See Implemenations in Guides

• Get Started with SplashKit GPIO
• Reading Button Presses
• Using PWM to control LED brightness
• Modify PWM through button presses

Signatures:

C++

void raspi_cleanup()

C#

public static void SplashKit.RaspiCleanup();

Python

def raspi_cleanup():

Pascal

procedure RaspiCleanup()

---

Raspi Get Mode

This function retrieves the mode of the specified pin.

Parameters:

Name	Type	Description
pin	Pins	The pin to get the mode for.

Return Type: Pin Modes

Signatures:

C++

pin_modes raspi_get_mode(pins pin)

C#

public static PinModes SplashKit.RaspiGetMode(Pins pin);

Python

def raspi_get_mode(pin):

Pascal

function RaspiGetMode(pin: Pins): PinModes

---

Raspi Init

This function initializes the GPIO library for use. It should be called before any other GPIO functions.

Usage:

See Implemenations in Guides

• Get Started with SplashKit GPIO
• Reading Button Presses
• Using PWM to control LED brightness
• Modify PWM through button presses

Signatures:

C++

void raspi_init()

C#

public static void SplashKit.RaspiInit();

Python

def raspi_init():

Pascal

procedure RaspiInit()

---

Raspi Read

This function reads the value from the specified pin.

Parameters:

Name	Type	Description
pin	Pins	The pin to read the value from.

Return Type: Pin Values

Usage:

See Implemenations in Guides

• Reading Button Presses
• Modify PWM through button presses

Signatures:

C++

pin_values raspi_read(pins pin)

C#

public static PinValues SplashKit.RaspiRead(Pins pin);

Python

def raspi_read(pin):

Pascal

function RaspiRead(pin: Pins): PinValues

---

Raspi Set Mode

This function sets the mode of the specified pin to the specified mode.

Parameters:

Name	Type	Description
pin	Pins	The pin to set the mode for.
mode	Pin Modes	The mode to set for the pin.

Usage:

See Implemenations in Guides

• Get Started with SplashKit GPIO
• Reading Button Presses
• Using PWM to control LED brightness
• Modify PWM through button presses

Signatures:

C++

void raspi_set_mode(pins pin, pin_modes mode)

C#

public static void SplashKit.RaspiSetMode(Pins pin, PinModes mode);

Python

def raspi_set_mode(pin, mode):

Pascal

procedure RaspiSetMode(pin: Pins; mode: PinModes)

---

Raspi Set Pull Up Down

This function sets the pull-up/down mode for the specified pin.

Parameters:

Name	Type	Description
pin	Pins	The pin to set the pull up/down mode for.
pud	Pull Up Down	The pull up/down mode to set for the pin.

Usage:

See Implemenations in Guides

• Reading Button Presses
• Modify PWM through button presses

Signatures:

C++

void raspi_set_pull_up_down(pins pin, pull_up_down pud)

C#

public static void SplashKit.RaspiSetPullUpDown(Pins pin, PullUpDown pud);

Python

def raspi_set_pull_up_down(pin, pud):

Pascal

procedure RaspiSetPullUpDown(pin: Pins; pud: PullUpDown)

---

Raspi Set Pwm Dutycycle

This function sets the PWM duty cycle for the specified pin.

Parameters:

Name	Type	Description
pin	Pins	The pin to set the PWM duty cycle for.
dutycycle	Integer	The PWM duty cycle to set for the pin.

Usage:

See Implemenations in Guides

• Using PWM to control LED brightness
• Modify PWM through button presses

Signatures:

C++

void raspi_set_pwm_dutycycle(pins pin, int dutycycle)

C#

public static void SplashKit.RaspiSetPwmDutycycle(Pins pin, int dutycycle);

Python

def raspi_set_pwm_dutycycle(pin, dutycycle):

Pascal

procedure RaspiSetPwmDutycycle(pin: Pins; dutycycle: Integer)

---

Raspi Set Pwm Frequency

This function sets the PWM frequency for the specified pin.

Parameters:

Name	Type	Description
pin	Pins	The pin to set the PWM frequency for.
frequency	Integer	The PWM frequency to set for the pin.

Usage:

See Implemenations in Guides

• Using PWM to control LED brightness
• Modify PWM through button presses

Signatures:

C++

void raspi_set_pwm_frequency(pins pin, int frequency)

C#

public static void SplashKit.RaspiSetPwmFrequency(Pins pin, int frequency);

Python

def raspi_set_pwm_frequency(pin, frequency):

Pascal

procedure RaspiSetPwmFrequency(pin: Pins; frequency: Integer)

---

Raspi Set Pwm Range

This function sets the PWM range for the specified pin.

Parameters:

Name	Type	Description
pin	Pins	The pin to set the PWM range for.
range	Integer	The PWM range to set for the pin.

Usage:

See Implemenations in Guides

• Using PWM to control LED brightness

Signatures:

C++

void raspi_set_pwm_range(pins pin, int range)

C#

public static void SplashKit.RaspiSetPwmRange(Pins pin, int range);

Python

def raspi_set_pwm_range(pin, range):

Pascal

procedure RaspiSetPwmRange(pin: Pins; range: Integer)

---

Raspi Write

This function writes the specified value to the specified pin.

Parameters:

Name	Type	Description
pin	Pins	The pin to write the value to.
value	Pin Values	The value to write to the pin.

Usage:

See Implemenations in Guides

• Get Started with SplashKit GPIO
• Reading Button Presses

Signatures:

C++

void raspi_write(pins pin, pin_values value)

C#

public static void SplashKit.RaspiWrite(Pins pin, PinValues value);

Python

def raspi_write(pin, value):

Pascal

procedure RaspiWrite(pin: Pins; value: PinValues)

---