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WSAL22545 – 1.51inch Transparent OLED/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

This document describes the Waveshare 1.51-inch transparent OLED module with 128×64 resolution, an SSD1309 controller, and SPI/I2C interfaces. It includes wiring examples for Raspberry Pi, STM32, and Arduino, along with test commands.

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Technical overview

  • Resolution: 128 × 64 pixels; display size 35.05 × 15.32 mm; pixel size 0.254 × 0.254 mm
  • Operating voltage: 5 V / 3.3 V; communication via 4-wire SPI or I2C
  • Integrated controller: SSD1309 with 128×64-bit SRAM; supports SPI, I2C, 6800 and 8080 parallel ports, and 256-level brightness settings
  • Pinout: VCC (5V/3.3V), GND, DIN, CLK, CS (active-low), DC (high = data, low = command), RST (active-low)
  • Hardware configuration: Two resistors on the back select the interface; factory default is 4-wire SPI; switching to I2C requires soldering the corresponding 0Ω resistors and adjusting DEV_Config.h
  • Raspberry Pi connection: VCC to 3.3 V, GND to ground, DIN to SPI MOSI or I2C SDA, CLK to SPI SCLK or I2C SCL, CS to CE0, D/C to GPIO6, RES to GPIO2
  • For Raspberry Pi, run `sudo raspi-config` in the terminal to enable SPI or I2C under Interfacing Options, then reboot
  • Libraries: BCM2835, WiringPi, and lgpio availability depends on the Debian release; on Bookworm only lgpio can be installed
  • Python environment: install python3-pip, python3-pil, python3-numpy, spidev, and python3-smbus
  • Test demo: download and extract the demo package, then run the C demo with `sudo ./main 1.51` or the matching Python script

Commands and examples – verify before use:  

sudo raspi-config
sudo reboot
sudo make clean
sudo make -j 8
sudo ./main 1.51
sudo python3 OLED_1in51_test.py

Notes and version constraints

  • The exact name of the Python test script for the 1.51-inch module is not fully specified in the source; verify before running.
  • Switching from SPI to I2C requires soldering and editing DEV_Config.h; exact steps are version-sensitive.
  • Displaying the same image for extended periods may cause afterimages and damage the OLED.
  • Do not reverse-connect the power supply; connecting only VCC and GND without program control will leave the display dark.
  • Current-consumption figures in the FAQ refer to other OLED models; specific values for the 1.51-inch transparent OLED are not provided in the source.

Source and revision record

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