Overview

This is my 2 axis rotary encoder cnc pendant for CNC.js.

The rotary encoders send keystrokes to the host machine by emulating a USB HID keyboard. Each single-notch rotation on an encoder sends a single keystroke:

• The X-axis encoder sends LEFT_ARROW for counter-clockwise and RIGHT_ARROW for clockwise rotations.
• The Y-axis encoder sends UP_ARROW for counter-clockwise and DOWN_ARROW for clockwise rotations.

Hardware

• 1x Arduino Uno
• 2x Rotary Encoders - I'm using two of these: [SMO 100PPR Electronic Hand Wheel Manual Pulse Encoder]https://www.amazon.com/gp/product/B00PIAMLO0

Dependencies

• [HoodLoader2 Bootloader & USB Firmware] https://github.com/NicoHood/HoodLoader2
• [Arduino RotaryEncoder Library] http://www.mathertel.de/Arduino/RotaryEncoderLibrary.aspx