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SSD1306 based OLED connected to Arduino
pacodelgado edited this page Mar 26, 2015
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A few weeks ago i bought one of these cheap "I2C OLED 0.96 inch displays" on eBay. Since it took me a while to get it up and running, i want to share my insights to you. I will give three example sketches, each using a different library (Adafruit, u8g and hobby components).
- Display technology: OLED
- Size: 0.96"
- Resolution: 128x64
- Protocol: SPI
- Chipset: SSD1306
Although it was sold as an I2C display, it turned out that it operates as an SPI device as default. If you look at the back side, you can see that it is in "4SPI" mode.
The display has the following pins: GND, VCC, D0, D1, RES, DC, CS. Since pin names are often named differently, i will give an overview of commonly used names for refernce:
Pin | Alternate Names | Description |
---|---|---|
VCC | ||
GND | ||
D0 | SCL,CLK,SCK | |
D1 | SDA,MOSI | |
RES | RST,RESET | |
DC | A0 |
I got the display working with three different libraries:
- Adafruit
- u8g
- hobby components