PMW3360_Arduino

Interfacing PixArt PMW3360 with ATMega32u4 based Arduino boards

Parts info

• PMW3360 Module: https://www.tindie.com/products/jkicklighter/pmw3360-motion-sensor/ by JACK Enterprises
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• Base source code: https://github.com/mrjohnk/PMW3360DM-T2QU by mrjohnk
• Arduino Pro Micro: https://www.sparkfun.com/products/12640
  • It's compatible with Arduino Micro, Arduino Leonardo
  • Arduino Micro: https://store.arduino.cc/arduino-micro
  • Arduino Leonardo: https://www.arduino.cc/en/Main/Arduino_BoardLeonardo
  • (Theoretically possible, but not tested) Teensy 2.0 (https://www.pjrc.com/store/teensy.html) with Teensyduino (https://www.pjrc.com/teensy/teensyduino.html)

Pin connection

• MI = MISO
• MO = MOSI
• SS = Slave Select / Chip Select
• SC = SPI Clock
• MT = Motion (active low interrupt line)
• RS = Reset
• GD = Ground
• VI = Voltage in up to +5.5V

[Module] --- [Arduino]
      RS --- (NONE)
      GD --- GND
      MT --- Pin 7 (PE6, INT6) -> movement interrupt
      SS --- Pin 10 (PB6)
      SC --- SCK (PB1)
      MO --- MOSI (PB2)
      MI --- MISO (PB3)
      VI --- 5V

// in Mouse example
[Button] --- [Arduino]
    Left --- Pin 1 (PD3, INT3)
   Right --- Pin 0 (PD2, INT2)
   
* Connect the other pole of a button to GND

Sketch Descriptions

• PMW3360DM-Burst/
  • Minimal example for burst read on PMW3360 sensor
  • displacement in X and Y axis are printed when a motion is detected.
  • Serial Plotter is a nice way to visualize the result.
• PMW3360DM-Mouse/
  • Fully functional mouse (w. 1k polling rate) example with two buttons (left, right)
  • Default CPI and debounce time can be set (see #define sections in the source code)
  • Commands (newline (\n) should be placed at the end of each command)
    • Q: toggle surface quality report (can be seen thorugh Serial Monitor or Serial Plotter)
    • I: print device signature
    • C[number]: Set cpi level, example) C1600\n = set CPI to 1600.
• PMW3360DM-Camera/
  • See raw image captured from the sensor.
  • It outputs 1297 numbers in a plain text (dilimited by space character ' ')
    • [0] -- [1295]: 36x36 array of sensor image
    • [1296]: Surface quality value
  • A GUI version visualizer (PMW3360DM_Camera_Viewer/) is implemented on Processing (http://processing.org).
    • Press 's' to save the captured frame.
• (Legacy) Module/Arduino Examples/
  • Examples provided by https://github.com/mrjohnk/PMW3360DM-T2QU

How to use

• Build the circuit as described.
• (PMW3360DM-Mouse only) Copy the /library/AdvMouse/ to your Arduino library folder
• Load one of the desired skectch on Arduino IDE.
  • For PMW3360DM-Camera sketch, load PMW3360DM_Camera_Viewer sketch on Processing and run.

Wishlist

• 16-bit mouse report (https://www.overclock.net/forum/375-mice/1561041-reverse-engineering-3366-a-35.html#post26314321)
• 3D Printable mouse shell
• Test with ARM-based 32bit boards
• Deal with the scroll wheel encoder

Example construction

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