Quelltext der Seite 9085 – 0.96inch OLED (A)/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 ==
Concise technical guide for the Waveshare 0.96inch OLED (A) module: specifications, pinout, interface selection (3-wire SPI, 4-wire SPI, I2C), and setup instructions for Raspberry Pi, STM32, and Arduino.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/9085 9085 – 0.96inch OLED (A)]
* [https://shop.jw-tech.eu/p/WSAL9085 WSAL9085 – 0.96inch OLED (A)]

== Technical overview ==
* Operating voltage: 3.3 V or 5 V; default operation at 3.3 V.
* Driver chip: SSD1306; resolution 128×64 pixels; display size 0.96 inch.
* Interfaces: 3-wire SPI, 4-wire SPI, and I2C are selectable via two resistors (BS0/BS1) on the back of the module.
* By default, 4-wire SPI communication is active (BS0=0, BS1=0).
* For 3-wire SPI: connect BS0 to VCC and BS1 to GND.
* For I2C: connect BS0 to GND and BS1 to VCC; the DC pin sets the I2C address (GND → address 0x3C).
* Pinout: VCC, GND, DIN (SPI data input), CLK (SPI clock input), CS (chip select, low active), D/C (command/data signal), RES (reset, low active).
* Operating temperature: −20 °C to 70 °C; storage temperature: −30 °C to 80 °C; viewing angle &gt;160°.
* When connecting to a Raspberry Pi, use a 7-pin cable; pin mapping: DIN→MOSI/SDA (BCM19/3), CLK→SCLK/SCL (BCM23/5), CS→CE0 (BCM24), DC→BCM25 (pin 22), RES→BCM27 (pin 13).

'''Commands and examples – verify before use:''' 
<syntaxhighlight lang="text">
sudo raspi-config
sudo reboot
sudo ./main 0.96
sudo python3 OLED_0in96_test.py
</syntaxhighlight>

== Notes and version constraints ==
* The exact resistor wiring for interface selection must be verified physically on the module; the source only specifies logical states (0/1).
* When using I2C, the slave address depends on the DC pin; incorrect wiring may cause communication errors.
* The source contains placeholders (&#123;&#123;&#123;...&#125;&#125;), indicating incomplete documentation; certain values may be missing or outdated.
* Compatibility with specific Raspberry Pi OS versions (e.g., Bookworm) is limited: only lgpio is available; BCM2835 and WiringPi cannot be installed.
* Before operation, ensure the correct interface is selected via hardware configuration; otherwise communication may fail.

== Source and revision record ==
* [https://www.waveshare.com/wiki/0.96inch_OLED_(A) 0.96inch OLED (A) - Waveshare Wiki]
* Source revision: 69961
* Captured: 2026-08-29T09:23:12+00:00
* SHA-256: <code>eeb628e9d72ac2e24e796d9014909f3bf51aca8ab61297ccc0c925bbf06ce740</code>