Qwiic_EEPROM_Py¶

SparkFun Qwiic EEPROM - 512Kbit

Python module for the SparkFun Qwiic EEPROM Breakout - 512Kbit

This python package is a port of the existing SparkFun External EEPROM 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.

Supported Platforms¶

The Qwiic EEPROM Python package currently supports the following platforms:

Raspberry Pi

Dependencies¶

This driver package depends on the qwiic I2C driver: Qwiic_I2C_Py

Documentation¶

The SparkFun Qwiic EEPROM module documentation is hosted at ReadTheDocs

Installation¶

PyPi Installation¶

This repository is hosted on PyPi as the sparkfun-qwiic-eeprom 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-eeprom

For the current user:

pip install sparkfun-qwiic-eeprom

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-eeprom-<version>.tar.gz

Example Use¶

See the examples directory for more detailed use examples.

from __future__ import print_function
import qwiic_eeprom
import time
import sys

def run_example():

    print("\nSparkFun Qwiic EEPROM, Example 1\n")
    my_eeprom = qwiic_eeprom.QwiicEEPROM()

    if my_eeprom.begin() != True:
        print("\nThe Qwiic EEPROM isn't connected to the system. Please check your connection", \
            file=sys.stderr)
        return

    print("\nEEPROM ready!")

    print("\nMem size in bytes: " + str(my_eeprom.length()))

    my_value1 = 200 # 0xC8
    my_eeprom.write_byte(300, my_value1)  # (location = 0x12C, data byte)
    my_read1 = my_eeprom.read_byte(300) # (location = 0x12C)
    print("\nI read: " + str(my_read1)) # Should be 0xC8 = 200

    my_value2 = -366
    my_eeprom.write_int(10, my_value2)
    my_read2 = my_eeprom.read_int(10)    # (location)
    print("\nI read: " + str(my_read2))

    my_value3 = -7.35
    my_eeprom.write_float(9, my_value3)
    my_read3 = my_eeprom.read_float(9)    # (location)
    # Round to 2-decimal point precision
    my_read3 = round(my_read3, 2)
    print("\nI read: " + str(my_read3))

if __name__ == '__main__':
    try:
        run_example()
    except (KeyboardInterrupt, SystemExit) as exErr:
        print("\nEnding Example 1")
        sys.exit(0)

Table of Contents¶

Contents:

Qwiic_EEPROM_Py

API Reference

API Reference
- qwiic_eeprom

Examples