GpioExpander (diozero - Core 1.3.3 API)

All Superinterfaces:

AutoCloseable, DeviceInterface

All Known Implementing Classes:

MCP23008, MCP23017, MCP23S17, MCP23x08, MCP23x17, MCP23xxx, OutputShiftRegister, PCF8574
```
public interface GpioExpander
extends DeviceInterface
```
Interface for GPIO expansion boards such as the MCP23xxx family of devices

Field Summary

Fields
Modifier and Type Field Description

static byte ALL_INPUT

static byte ALL_OUTPUT

static int GPIOS_PER_PORT

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`setDirections(int port, byte directions)`	Set the directions for all pins on this port using the specified directions bit mask.
`void`	`setValues(int port, byte values)`	Set the output value for a pins on this port.

Methods inherited from interface com.diozero.api.DeviceInterface
close

- Field Detail
  - GPIOS_PER_PORT
```
static final int GPIOS_PER_PORT
```
    See Also:
    
    Constant Field Values
  - ALL_OUTPUT
```
static final byte ALL_OUTPUT
```
    See Also:
    
    Constant Field Values
  - ALL_INPUT
```
static final byte ALL_INPUT
```
    See Also:
    
    Constant Field Values
- Method Detail
  - setDirections
```
void setDirections(int port,
                   byte directions)
```
    Set the directions for all pins on this port using the specified directions bit mask. 0 = output, 1 = input
    
    Parameters:
    
    port - the bank of up to 8 GPIOs
    
    directions - bit mask specifying the directions for up to 8 GPIOs. 0 = output, 1 = input
  - setValues
```
void setValues(int port,
               byte values)
```
    Set the output value for a pins on this port.
    
    Parameters:
    
    port - the bank of up to 8 GPIOs
    
    values - bit mask specifying on/off values. 1 = on, 0 = off