ماژول سنسور flow current مدل PMW3901 برای تشخیص سطوح در دو مختصات X-Y و در جهت روبرو به کار برده می شود و به صورت HAT و از طریق اینترفیس سریال SPI تبادل داده انجام می دهد
Description:
This optical flow sensor detects motion of surfaces in front of it, from ~80mm to infinity. It's great for DIY drone builds, and it's compatible with the Breakout Garden HAT with SPI. The PMW3901 is a crafty little sensor that uses a low-resolution camera and some clever algorithms to detect motion of surfaces. A great use for it is detecting and correcting for drift of a drone by looking for x/y motion of the ground below.
The module uses the PMW3901MB optoelectronic measurement chip from the original phase technology to detect the movement of objects on the X-Y plane. An optical lens and crystal oscillator are integrated on the chip.
Application:
UAV
Indoor and outdoor X-Y positioning
where GPS cannot be located
Features:
PMW3901 optical flow sensor
6mA typical current draw
SPI interface
Voltage - Supply: 3V ~ 5V
Reverse polarity protection
Compatible with all models of Raspberry Pi and Arduino
Python library
Communication interface: 4-wire SPI@2MHz