Monochrome OLED display 0.91" 128×32 white SSD1306, SPI interface, with 3.3 V regulator – Adafruit 661

Key features

• 128 × 32 white OLED pixels, each turned on or off by the controller: no backlight, hence low power and very high contrast
• SSD1306 controller communicating over SPI only: 4 or 5 pins required
• On-board 3.3 V regulator and level shifter: compatible with 5 V microcontrollers such as Arduino
• Charge pump built into the driver that generates the high OLED drive voltage from 3.3–5 V
• SSD1306 Arduino library for text, bitmaps, pixels, rectangles, circles and lines; buffering the whole display takes 512 bytes of RAM on the microcontroller
• Note: OLED pixels kept on for over 1000 hours start to dim; switching them off when not needed keeps the display uniform

Technical specifications

• Type: monochrome OLED, white pixels, COG construction
• Diagonal: 0.91"
• Resolution: 128 × 32 pixels
• Controller: SSD1306
• Interface: 4-wire SPI
• Power and logic: 3.3–5 V (on-board 3.3 V regulator)
• Current draw: about 15–20 mA typical, depending on lit pixels
• Brightness: 150 cd/m² typical
• Active area: 22.384 × 5.584 mm
• Pixel pitch: 0.175 × 0.175 mm
• PCB dimensions: 23 × 33 × 5 mm
• Mounting holes: Ø 2 mm, 15 × 24 mm spacing

Typical uses

Displaying sensor values, menus and device status, small instruments and compact indicators, projects with Arduino and other microcontrollers.

Package contents

• 1 OLED 128 × 32 SPI display module