ET-D12
1.3" SH1106 OLED 128×64
Bigger 1.3" white OLED, I²C with Qwiic, 3.3–5 V
AED 59.00
Out of stockOverview
Bigger 1.3" white OLED, I²C with Qwiic, 3.3–5 V
The ET-D12 is built around the 1.3" 128×64 OLED, white, SH1106 controller (132×64 RAM), internal charge pump. It talks over I2C 0x3C (0x3D with JP3), up to 400kHz and runs from 3.3–5V from Qwiic (on-board 3.3V LDO and level shifting).
Two Qwiic / STEMMA QT connectors let you chain it with other boards without soldering, and the 2.54 mm header fits a breadboard.
Designed in Dubai by ElectroTrical — the full schematic, BOM and design notes are published below.
Good for
- Readable dashboards
- Handheld instruments
- 3D-printer add-ons
Key features
What makes it different
Display
1.3" 128×64 OLED, white, SH1106 controller (132×64 RAM), internal charge pump
Interface
I2C 0x3C (0x3D with JP3), up to 400kHz
Supply
3.3–5V from Qwiic (on-board 3.3V LDO and level shifting)
Current
~15–30mA typ. depending on lit pixels
Qwiic / STEMMA QT
Two JST-SH connectors plus a 2.54 mm header — 3.3 V and 5 V hosts.
Open documentation
Schematic, BOM and layout notes published for every board.
Specifications
Technical specifications
| Display | 1.3" 128×64 OLED, white, SH1106 controller (132×64 RAM), internal charge pump |
|---|---|
| Interface | I2C 0x3C (0x3D with JP3), up to 400kHz |
| Supply | 3.3–5V from Qwiic (on-board 3.3V LDO and level shifting) |
| Current | ~15–30mA typ. depending on lit pixels |
| Size | 38.0 × 36.0 mm |
|---|---|
| Mounting | 4 × M2.5 holes, 2.54 mm from each corner |
| Connectors | 2 × Qwiic / STEMMA QT (JST SH 4-pin) · 5-pin 2.54 mm header |
| Main IC | HS13L03W2C01 (LCSC C7465997) |
| Revision | Rev A |
| Libraries | U8g2 (SH1106_128X64), Adafruit SH110X, luma.oled sh1106, ESPHome ssd1306_i2c model SH1106 |
|---|
| JP1 (default Closed) | Cut to turn off the LED |
|---|---|
| JP2 (default Closed) | Cut to remove the host-side I2C pull-ups |
| JP3 (default Open) | Bridge to change the I²C address 0x3C → 0x3D |
Performance
Power use
Pinout
Pin map and connections
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | Power | 3.3–5.5V |
| 2 | 3V3 | Power | LDO output |
| 3 | GND | Ground | Ground |
| 4 | SCL | I²C | I²C clock |
| 5 | SDA | I²C | I²C data |
Qwiic / STEMMA QT pins: GND, VIN, SDA, SCL (same on both connectors). I²C pull-ups (10 kΩ) are on the board; cut JP2 to remove them.
Mechanical
Dimensions and what's in the box
In the box
- 1 × ET-D12 1.3" SH1106 OLED 128×64 (assembled)
- 1 × 5-pin 2.54 mm male header, unsoldered
Getting started
- Plug in a Qwiic / STEMMA QT cable, or solder the header and wire VIN, GND, SDA and SCL
- Libraries: U8g2 (SH1106_128X64), Adafruit SH110X, luma.oled sh1106, ESPHome
ssd1306_i2cmodel SH1106 - Run an I²C scanner to confirm the address: 0x3C, 0x3D
Compare
Which OLED display?
| 1.3" SH1106 OLED 128×64 (this board)This board | ET-D11 0.96" SSD1306 OLED 128×64 | ET-D13 0.91" SSD1306 OLED 128×32 | |
|---|---|---|---|
| What it does | Bigger 1.3" white OLED, I²C with Qwiic, 3.3–5 V | White 128×64 OLED with Qwiic, works on 3.3 V and 5 V | Slim 128×32 OLED bar with Qwiic |
| Interface | I²C 0x3C (0x3D with JP3), up to 400kHz | I²C 0x3C (0x3D with JP3), up to 400kHz | I²C 0x3C (0x3D with JP3) |
| Best for | Readable dashboards | Status screens for sensors | One-line status in enclosures |
| Price | 59 AED | 59 AED | 39 AED |
Downloads
Documents and design files
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