RPiMCP23S17 0.2.0

Provided Functions

As a quick overview, the module provides the following functions. Refer to the module documentation for details:

• open

• close

• setPullupMode

• setDirection

• digitalRead

• digitalWrite

• writeGPIO

• readGPIO

Installation

If not already done, you need to install PIP via:

sudo apt-get install python-pip

The module can be installed via PIP with:

pip install RPi-MCP23S17

Alternatively, you can directly download from this repository .

Example

The following demo peridically toggles all pins of two MCP23S17 components:

mcp1 = MCP23S17(deviceID=0x00)
mcp2 = MCP23S17(deviceID=0x01)
mcp1.open()
mcp2.open()

for x in range(0, 16):
    mcp1.setDirection(x, mcp1.DIR_OUTPUT)
    mcp2.setDirection(x, mcp1.DIR_OUTPUT)

print "Starting blinky on all pins (CTRL+C to quit)"
while (True):
    for x in range(0, 16):
        mcp1.digitalWrite(x, MCP23S17.LEVEL_HIGH)
        mcp2.digitalWrite(x, MCP23S17.LEVEL_HIGH)
    time.sleep(1)

    for x in range(0, 16):
        mcp1.digitalWrite(x, MCP23S17.LEVEL_LOW)
        mcp2.digitalWrite(x, MCP23S17.LEVEL_LOW)
    time.sleep(1)

Change Log

0.2.0

• Reorganized module structure

0.1.1

• Enhanced package setup script setup.py

• Updated documentation

0.1.0

• Initial release