Python Support for FTDI Products: A Technical Guide

Introduction

This Technical Note details the integration of Python programming with FTDI products. It covers the use of FTDI's Virtual COM Port (VCP) Driver and D2xx Driver, providing practical examples for developers. The document also lists various third-party Python libraries and resources that facilitate the use of FTDI devices.

Python Programming Overview

Python is a widely adopted, versatile programming language known for its ease of learning, rapid prototyping capabilities, and cross-platform compatibility (Windows, macOS, Linux). Its simple syntax, similar to English, allows for concise code. Python's interpreter system enables immediate execution of code, speeding up development cycles. For more information, visit the official Python website: python.org.

FTDI Driver Support with Python

FTDI products can be effectively utilized with Python through two primary driver types:

VCP Driver: Enables serial communication via virtual COM ports. Examples demonstrate opening a COM port, sending data, and receiving responses.
D2xx Driver: Provides direct access to FTDI devices. Examples include retrieving COM port numbers and device information using D2xx APIs.

Third-Party Python Resources

A variety of third-party Python libraries and projects extend the functionality for FTDI devices:

PyUSB: For easy access to the Universal Serial Bus (USB) system.
pylibftdi: A Pythonic interface to FTDI devices using libftdi.
PyFtdi: A pure Python user-space driver for FTDI devices.
Adafruit: Offers guides for using FT232H with I2C and SPI sensors, detailed at learn.adafruit.com.
ftdi-python: Provides a step-by-step approach to driving FTDI ICs.
ftd2xx ctypes Wrapper: A simple Python wrapper for the D2XX DLL.
python-ft4222: Python bindings for LibFT4222, used with FT4222H IC.

Conclusion

This technical note serves as a guide for developers looking to integrate Python with FTDI hardware, highlighting the capabilities of FTDI drivers and the broader Python ecosystem.

Contact Information

For inquiries, please refer to the contact details provided by Future Technology Devices International Limited (FTDI) for their global offices and website: ftdichip.com.

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Technical Note TN_187: Python Support for FTDI Products