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2026-09-05T22:30:10Z

Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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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 ==
Technical overview of the Waveshare 1.5-inch RGB OLED module: specifications, SPI connection, SSD1351 control, and setup instructions for Raspberry Pi, STM32 and Arduino.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL14747 WSAL14747 – 1.5inch RGB OLED Display Module, 65K RGB Colors, 128×128, SPI]

== Technical overview ==
* Resolution 128×128 pixels at 65K color depth; driver IC is SSD1351 with a 128×128×18-bit SRAM buffer.
* Two operating modes: 4-wire SPI (default) and 3-wire SPI, switchable via a solderable resistor on the module's rear side.
* In 4-wire SPI, the DC line selects mode: low = command byte, high = data byte(s).
* In 3-wire SPI, the DC signal is omitted; instead an extra bit is prepended to each transfer to distinguish command from data; transfers are 9-bit blocks.
* Pins: VCC (3.3 V or 5 V), GND, DIN (MOSI), SCL/SCK, CS (active-low), DC, RST (active-low).
* Operating voltage must be chosen between 3.3 V and 5 V; ensure supply and logic levels match, otherwise the module will not work properly.
* For Raspberry Pi: enable SPI via 'sudo raspi-config' under Interfacing Options -> SPI -> Yes, then reboot.
* Available libraries: BCM2835, WiringPi, lgpio and Python (spidev, PIL, numpy); on Bookworm only lgpio is usable.
* C test demo: run 'sudo make clean && sudo make -j 8' in the 'c' directory, then 'sudo ./main 1.5rgb'.
* Python test demo: 'cd python/example' and run 'sudo python3 OLED_1in5_rgb_test.py'.

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
sudo raspi-config
sudo reboot
sudo apt-get install wiringpi
sudo apt-get update
sudo apt-get install python3-pip
sudo apt-get install python3-pil
sudo apt-get install python3-numpy
sudo pip3 install spidev
sudo apt-get install python3-smbus
sudo apt-get install p7zip-full
sudo wget https://files.waveshare.com/upload/2/2c/OLED_Module_Code.7z
7z x OLED_Module_Code.7z
cd OLED_Module_Code/RaspberryPi
cd c
sudo make clean
sudo make -j 8
sudo ./main 1.5rgb
cd python/example
sudo python3 OLED_1in5_rgb_test.py
</syntaxhighlight>

== Notes and version constraints ==
* The source contains placeholders such as {{{name2}}} through {{{name6}}} and {{{userDefinedInfo}}}, indicating incomplete metadata – complete these before publication via human review.
* Voltage choice 3.3 V vs. 5 V: The source explicitly warns that supply voltage and logic level must match; an incorrect combination causes malfunction.
* Library usability is version-sensitive: On Bookworm, per the source, BCM2835 and WiringPi cannot be installed; only lgpio is available.
* The stated current draw (~60 mA full white / ~4 mA full black at 3.3 V) comes from the FAQ section; exact values should be confirmed with the supplier.
* The module has no backlight and only lights up after programming – without control commands the display stays dark.
* The demo file is downloaded from an external URL; if network access is unavailable or paths have changed, the download may fail.

== Source and revision record ==
* [https://www.waveshare.com/wiki/1.5inch_RGB_OLED_Module 1.5inch RGB OLED Module - Waveshare Wiki]
* Source revision: 109422
* Captured: 2026-08-30T04:29:20+00:00
* SHA-256: <code>80fa353922cb3872e0ef301ebf7ed81bbd76f73f5bb4473ec94e8abf0d66f4ea</code>

WSAL14747 – 1.5inch RGB OLED Module/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex