Qwiic_Keypad_Py

Python module for the qwiic keypad, which is part of the SparkFun Qwiic Keypad - 12 Button

This python package is a port of the existing SparkFun Qwiic Keypad Arduino Library

This package can be used in conjunction with the overall SparkFun qwiic Python Package

New to qwiic? Take a look at the entire SparkFun qwiic ecosystem.

Contents

• Dependencies
• Installation
• Documentation
• Example Use

Dependencies

This driver package depends on the qwiic I2C driver: Qwiic_I2C_Py

Documentation

The SparkFun qwiic Keypad module documentation is hosted at ReadTheDocs

Installation

PyPi Installation

This repository is hosted on PyPi as the sparkfun-qwiic-keypad package. On systems that support PyPi installation via pip, this library is installed using the following commands

For all users (note: the user must have sudo privileges):

sudo pip install sparkfun-qwiic-keypad

For the current user:

pip install sparkfun-qwiic-keypad

Local Installation

To install, make sure the setuptools package is installed on the system.

Direct installation at the command line:

python setup.py install

To build a package for use with pip:

python setup.py sdist

A package file is built and placed in a subdirectory called dist. This package file can be installed using pip.

cd dist
pip install sparkfun_qwiic_keypad-<version>.tar.gz

Example Use

See the examples directory for more detailed use examples.

import qwiic_keypad
import time
import sys
 
def runExample():
 
    print("\nSparkFun qwiic Keypad   Example 1\n")
    myKeypad = qwiic_keypad.QwiicKeypad()
 
    if myKeypad.is_connected() == False:
        print("The Qwiic Keypad device isn't connected to the system. Please check your connection", \
            file=sys.stderr)
        return
 
    myKeypad.begin()
 
    button = 0
    while True:
 
        # necessary for keypad to pull button from stack to readable register
        myKeypad.update_fifo()  
        button = myKeypad.get_button()
 
        if button == -1:
            print("No keypad detected")
            time.sleep(1)
 
        elif button != 0:
 
            # Get the character version of this char
            charButton = chr(button)
            if charButton == '#':
                print()
            elif charButton == '*':
                print(" ", end="")
            else: 
                print(charButton, end="")
 
            # Flush the stdout buffer to give immediate user feedback
            sys.stdout.flush()
 
        time.sleep(.25)
        # Development in progress