MCP230xx series I2C GPIO expander

Supported interfaces

• webiopi.devices.digital.GPIOPort

Python Constructor

Use following constructors if you want to create some MCP230xx from your python scripts.

• MCP23008(slave)
• MCP23009(slave)
• MCP23017(slave)
• MCP23018(slave)

Parameters :

• slave (optional, default=0x20): I2C slave address

from webiopi.devices.digital import MCP23017

# Setup a MCP23017 on I2C slave 0x20 (default)
mcp0 = MCP23017()
# or
mcp0 = MCP23017(slave=0x20)

# Setup a MCP23017 on I2C slave 0x21
mcp1 = MCP23017(slave=0x21)

Configuration File syntax

Use following syntax to setup some MCP230xx in the webiopi service/command configuration file.

[DEVICES]
# Setup a MCP23017 on I2C slave 0x20 (default)
mcp0 = MCP23017
# or
mcp0 = MCP23017 slave:0x20

# Setup a MCP23017 on I2C slave 0x21
mcp1 = MCP23017 slave:0x21