MAX5481

Arduino Library for the Maxim MAX5481-5484 Digital Potentiometers

This library implements functions to control the MAX5481 digital Potentiometer(s) using SPI

See the Maxim Integrated datasheet for details MAX5481

Class, Methods and Defines

Defines

MAX5481_MAJOR

MAX5481_MINOR

MAX5481_PATCH

Description

These defines can be used to determine the current version of the library being used in your code.

Constructor

MAX5481(int SSPIN)

Description

Instantiation of the Digital Potentiometer sets the Slave Select Pin. During the instantiation of the library the Slave Select Pin is pulled High

Syntax

MAX5481 myDpot(SSPIN);

Parameters

SSPIN: (parameter required) Slave Select Pin of the Digital Potentiometer on the SPI bus

Return

None

Example

// Instantiation of MAX5481 Digital Potentiometer
MAX5481 myDpot(11);

Methods

begin()

Description

Initializes the Digital Pot, setting the Slave Select Pin High

Syntax

begin();

Parameters

None

Return

None

Example

// Initializes the the MAX5481, pulling the Chip Select ping High
myDpot.begin();

---

setWiper(int value)

Description

Sets the wiper to the given value

Syntax

setWiper(value);

Parameters

value: an integer value between 0-1024

Return

None

Example

// Sets the Digital Potentiometer wiper to a given value
setWiper(wiper_value);

---

writeWiper(int value)

Description

Writes the current value of the wiper to NVM (Non-Volitle Memory)

Syntax

writeWiper();

Parameters

None

Return

None

Example

// Sets the Digital Potentiometer wiper to a given value
writeWiper();

---

readWiper(int value)

Description

Sets the value in NVM into the wiper

Syntax

readWiper();

Parameters

None

Return

None

Example

// Moves the value in NMV into the wiper
readWiper();

---

Attributions

This library was inspired by previous works done by Gabriel Staples and Others.

http://forum.arduino.cc/index.php?topic=242376.0

http://www.electricrcaircraftguy.com/2016/11/MAX5481-DigitalPotentiometer.html

Contribute

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