“Gives you a reading of when an object is moving and the direction it is moving in. Would be useful to have a library for usage in .Net core. The instructions for setup aren't that clear and if something went wrong, as it did for me, the error messages don't give you enough information to resolve the issue yourself”
“Good for speed measurement with adequate lighting. Had trouble using the Optical Flow sensor with other peripherals on the same SPI bus. Pimoroni support confirmed there is a hardware design error on the version I had that prevents the board releasing the SPI bus when the chip is not selected, so beware if you need to use with other SPI devices.”
“a wonderful breakout. I use it to measure the displacement of my robot in x, y.
I use a compass (cmps03) for the turns because the PMW3901 only measures the x, y displacement.
the PMW3901 faces the ceiling.”
