PMW3901 / PAA5100JE 2-Dimensional Optical Flow Sensor

Installing

Stable library from PyPi:

• Just run python3 -m pip install pmw3901

Latest/development library from GitHub:

• git clone https://github.com/pimoroni/pmw3901-python
• cd pmw3901-python
• ./install.sh

Usage

The PAA5100JE has a slightly different init routine to the PMW3901, you should use the class provided to ensure it's set up correctly:

from pmw3901 import PAA5100

And for the PMW3901, continue using the old class:

from pmw3901 import PMW3901

The example motion.py demonstrates setting up either sensor, and accepts a --board argument to specify which you'd like to use.

1.0.0

• Port to gpiod/gpiodevice
• Repackage to hatch/pyproject.toml
• BREAKING: spi_cs_gpio will not auto-detect SPI CS line, use spi_cs=(0, 1)
• BREAKING: Constants BG_CS_FRONT_BCM and BG_CS_BACK_BCM are now CS lines, not pins

0.1.0

• Add init support for PAA5100JE
• Add frame capture support

0.0.1

• Initial Release