Digital 3D printer filament counter using PS/2 mouse #ArduinoMonday

Handy project from Bin Sun up on Hackster.io.

Ever wonder how much filament you actually used for a project or have an old mechanical ball mouse laying around to be recycled?

Read more.

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Each Monday is ArduinoMonday here at Adafruit! Be sure to check out our posts, tutorials and new Arduino related products. Adafruit manufactures the Arduino right here in the United States in cooperation with arduino.cc. We have a huge selection of Arduino accessories and all the code and tutorials to get you up and running in no time!