SH1106 1.3" OLED Display
Larger monochrome OLED, pin-compatible with SSD1306 in most libraries.
The SH1106 looks nearly identical to the SSD1306 — same 1.3-inch monochrome OLED form factor, same 4-pin I2C breakout, same 0x3C default address — but it's a different controller chip with a different internal frame buffer, and code written for one will not display correctly on the other. The SH1106's buffer is 132 pixels wide even though only 128 are visible, so the panel is offset by 2 pixels compared to the SSD1306, and libraries need to account for that offset explicitly.
In practice this means one thing matters more than anything else when working with this display: use a library that explicitly supports SH1106 (Adafruit_SH110X, or U8g2 with the correct constructor), not the Adafruit_SSD1306 library. Swap the constructor and everything else — drawing calls, fonts, buffer-and-flush pattern — works the same way as the SSD1306 you may already be used to.
Specifications
| Display | 128 x 64 visible pixels, monochrome OLED (132-pixel-wide internal buffer) |
| Operating voltage | 3.3V - 5V (most breakout modules have an onboard regulator) |
| Interface | I2C (this module); SPI variants also exist |
| I2C address | 0x3C default on most modules — scan to confirm, some ship at 0x3D |
| Driver chip | SH1106 — NOT interchangeable in software with the visually similar SSD1306 |
| Known quirk | 132px internal buffer vs 128px visible — needs a 2px horizontal offset that SH1106-specific libraries handle automatically |
Pinout
| Pin | Name | Description |
|---|---|---|
| 1 | GND | Ground |
| 2 | VCC | Power, 3.3V-5V DC depending on the module's onboard regulator |
| 3 | SCL | I2C clock line |
| 4 | SDA | I2C data line |
The pinout is electrically identical to the SSD1306 module, so wiring mistakes aren't the usual failure mode here — a garbled or shifted image with correct wiring is almost always a library mismatch, not a hardware fault. Always confirm with Adafruit_SH110X or a U8g2 SH1106 constructor before assuming a display is faulty.
Variants
If a board is unlabeled or the seller's listing is ambiguous, check the physical size before assuming the driver: 1.3" panels are almost always SH1106, while 0.96" panels are almost always SSD1306. When in doubt, try the SH1106 library first — if the image is shifted or garbled, that confirms it's actually an SSD1306 and vice versa.
| Variant | Temp range | Hum range | Accuracy | Protocol | Price |
|---|---|---|---|---|---|
| SH1106 1.3" (128x64) | ~$3-6 | ||||
| SSD1306 0.96" (128x64) | ~$2-5 |