This module is a combination of OLEDIIC interface module and EC11 rotary encoder module. The two are not related, but are placed on the same board to form an integrated module, with additional return and confirmation buttons. The button interface is also independent and can be selected for use according to actual usage. Integrated design, more concise and beautiful, convenient for DIY.

• Tested with "Adafruit SH11x" library 
• Arduino Library Installation: Library Manager --> Adafruit SH11x
• For test go to: Arduino IDE -> Examples -> Adafruit SH11X -> SH1106_128x64_i2c_QTPY

Specifications

• Input voltage: 3.3v
• OLED size: 1.3 in / 128x64 
• OLED driver: SSD1106
• OLED communication: I2C dir: 0x3C
• EC11:Plum Handle, 15mm length, 20 pulse positions

 Documents:

• OLED example
• Rotary Encoder Tutorial and Arduino Project.
• Tutorial from Instructables.com