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WSAL13992 – 1.5inch OLED Module/en

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Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The 1.5-inch OLED module uses an SSD1327 controller with 128x128 resolution and 16 grayscale levels. It supports 4-wire SPI and I2C; the operating mode is configured via BS1/BS2 solder bridges. Demos are provided for Raspberry Pi, STM32, and Arduino.

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Technical overview

  • Controller: SSD1327
  • Resolution: 128 x 128 pixels
  • Display size: 1.5 inch
  • Dimensions: 44.5 mm × 37 mm
  • Color depth: 16-level grayscale
  • Operating voltage: 3.3 V / 5 V
  • Default mode: 4-wire SPI (BS1=0, BS2=0)
  • I2C configuration: BS1=1, BS2=1, address 0x3D by default (BS3=1) or 0x3C (BS3=0)
  • Pinout: VCC, GND, DIN/MOSI/SDA, CLK/SCK/SCL, CS, DC, RST
  • Raspberry Pi pin mapping provided for SPI/I2C
  • Demo code available in C and Python for Raspberry Pi

Commands and examples – verify before use:  

sudo raspi-config
sudo reboot
sudo ./main 1.5

Notes and version constraints

  • The exact function of BS3 depends on soldering; please verify before configuring
  • When using the Bookworm OS, only the lgpio library is usable; BCM2835 and WiringPi cannot be installed
  • The OLED will not display images without active control from the controller device
  • Prolonged display of the same image may cause afterimages
  • Do not apply reverse voltage

Source and revision record

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