itssuzie / pmw3389_mouse

Code for a 3D printed Arduino Pro Micro mouse utilizing the PMW3389 sensor.

PMW3389 Mouse

This code is for a custom 3D printed mouse that utilizes the PMW3389 sensor. The video about this project can be found here: https://youtu.be/qmX8vL-GbxU

Code history:

• Original version of this code: https://github.com/dkao/Kensington_Expert_Mouse_PMW3389_Arduino by dkao
• Base source code: https://github.com/mrjohnk/PMW3389DM by mrjohnk

Parts list

• (1) PMW3389 Module: https://www.tindie.com/products/citizenjoe/pmw3389-motion-sensor/
  • 
• (1) Arduino Pro Micro
• (6) Switches (Kailh Choc): https://www.amazon.com/KAILH-Official-Chocolate-Mechanical-Keyboard/dp/B0B3MLZJ8K?th=1
• (6) Keycaps (Kailh Choc): https://chosfox.com/collections/low-profile-keycaps/products/chocfox-cfx-choc-keycaps
• (1) Rotary encoder - model PEC12R-4220F-S0024: https://www.digikey.com/en/products/detail/bourns-inc/PEC12R-4220F-S0024/4499653
• (1) Rotary Encoder knob: https://www.adafruit.com/product/5528
• (1) Neopixel RGBW LED: https://www.adafruit.com/product/4776
• (10) 10K Resistors
• (2) 0.1uF Capacitors
• (2) 1x8 Female headers
• (2) 1x12 Female headers
• Fine guage wire
• Mouse glides: https://www.amazon.com/dp/B07TLK4956
• USB-micro cable (can use any, but I like this one): https://www.amazon.com/dp/B018RAVXU0

Electronics and PCB Schematics

• Check the respective folders for the KiCad and Gerber files.

Sensor module pinout

• 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 (will work with 3.3v)

Sketch Descriptions

• PMW3389DM-Mouse/
  • Mouse with high polling rate and 4 main buttons: Left, Right, Middle, Back, plus 2 user-definable Keyboard buttons
  • Default CPI and debounce time can be set (see #define sections in the source code)
  • Cycle through CPI with button combo (back + right click), LED will update to show which mode is selected

3D Models

• Check the 3D_models folder

How to use

• Build the circuit as described.
• (Arduino only) Copy the /library/AdvMouse/ to your Arduino library folder
• Load PMW3389DM-Mouse on Arduino IDE.
  • Change dx, dy to positive values if input is reversed
• Upload code to Arduino
• Enjoy!