Breakout board designed in KiCad makes it easy to put a rotary encoder on a breadboard. Footprints on the back are meant for 1206 SMD resistors. I choose 1K resistors (marked 102) when I assembled this board.

Blog post:

• Rotary Encoder breakout with pull-ups

GitHub repo:

• pdp7/rotary-encoder-breakout
• Commit: f6ccc0b

KiCad library:

• Using Kicad symbol and footprint by mcous for sparkfun rotary encoder:
  • mcous/kicad-lib.git

Verified to work:

• SparkFun Rotary Encoder (COM-09117)
  • Alpha 318-ENC130175F-12PS datasheet
• Bourns PEC12R-4220F-S0024-ND (DigiKey)
  • PEC12R series datasheet

Source Code:

• Example for Teensy 3.2

Video:

• Rotary Encoder Breakout Board with Pull-up Resistors

Photos:

• Images in GitHub repo
• Google Photos gallery