DE2120_Py¶
Python module for the SparkFun 2D Barcode Scanner Breakout - DE2120.
This python package is a port of the existing SparkFun DE2120 Arduino Library
Supported Platforms¶
The Qwiic Button Python package current supports the following platforms:
Dependencies¶
This driver package depends on the pyserial package.
Documentation¶
The SparkFun 2D Barcode Scanner Breakout module documentation is hosted at ReadTheDocs
Installation¶
PyPi Installation¶
This repository is hosted on PyPi as the de2120-barcode-scanner 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 de2120-barcode-scanner
For the current user:
pip install de2120-barcode-scanner
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 de2120-barcode-scanner-<version>.tar.gz
Example Use¶
See the examples directory for more detailed use examples.
from __future__ import print_function
import de2120_barcode_scanner
import time
import sys
def run_example():
print("\nSparkFun DE2120 Barcode Scanner Breakout Example 1")
my_scanner = de2120_barcode_scanner.DE2120BarcodeScanner()
if my_scanner.begin() == False:
print("\nThe Barcode Scanner module isn't connected correctly to the system. Please check wiring", \
file=sys.stderr)
return
print("\nScanner ready!")
scan_buffer = ""
while True:
scan_buffer = my_scanner.read_barcode()
if scan_buffer:
print("\nCode found: " + str(scan_buffer))
scan_buffer = ""
time.sleep(0.02)
if __name__ == '__main__':
try:
run_example()
except(KeyboardInterrupt, SystemExit) as exErr:
print("\nEnding Example 1")
sys.exit(0)