The latest PyFtdi online documentation is always available from here.
Beware the online version may be more recent than the PyPI hosted version, as intermediate development versions are not published to PyPi.
PyFtdi documentation can be locally build with Sphinx, see the installation instructions.
PyFtdi releases are available from the Python Package Index from PyPi.
PyFtdi development code is available from GitHub.
PyFtdi aims at providing a user-space driver for popular FTDI devices, implemented in pure Python language.
Suported FTDI devices include:
UART and GPIO bridges
FT232R (single port, 3Mbps)
FT230X/FT231X/FT234X (single port, 3Mbps)
UART and multi-serial protocols (SPI, I2C, JTAG) bridges
FT2232C/D (dual port, clock up to 6 MHz)
FT232H (single port, clock up to 30 MHz)
FT2232H (dual port, clock up to 30 MHz)
FT4232H (quad port, clock up to 30 MHz)
PyFtdi currently supports the following features:
UART/Serial USB converter, up to 12Mbps (depending on the FTDI device capability)
GPIO/Bitbang support, with 8-bit asynchronous, 8-bit synchronous and 8-/16-bit MPSSE variants
SPI master, with simultanous GPIO support, up to 12 pins per port, with support for non-byte sized transfer
I2C master, with simultanous GPIO support, up to 14 pins per port
Basic JTAG master capabilities
EEPROM support (some parameters cannot yet be modified, only retrieved)
Experimental CBUS support on selected devices, 4 pins per port
Supported host OSes¶
Windows, although not officially supported
Starting with version v0.40.0, several API changes are being introduced. While PyFtdi tries to maintain backward compatibility with previous versions, some of these changes may require existing clients to update calls to PyFtdi.
Do not upgrade to v0.40.0 or above without testing your client against the new PyFtdi releases. PyFtdi versions up to v0.39.9 keep a stable API with v0.22+ series.
See the Major Changes section on the online documentation for details about potential API breaks.
read methods now return
bytearrayinstead of Array(‘B’) so that pyserial
readline()may be used. It also brings some performance improvements.
PyFtdi URLs now supports
bus:addressalternative specifiers, which required to augment the
open_*()methods with new, optional parameters.
SpiControllerreserves only one slave line (/CS) where it used to reserve 4 slave lines in previous releases. This frees more GPIOs when default value is used - it is nevertheless still possible to reserve up to 5 slave lines.
type hinting is used for most, if not all, public methods.
simplified baudrate divider calculation.