OLED I2C Display, 128x32 I2C OLED Display
Model No. WEO012832F
►Thinner version OLED
►Type: Graphic
►Structure: COG
►Size: 0.91 inch
►128x32 Dot Matrix
►Built-in controller SSD1306
►3V Power supply
►1/32 duty
►Interface: I2C OLED ; OLED I2C
►Display Color: White / Yellow / Sky Blue
►Suitable for Wearable Device
DESCRIPTION
128x32 Graphic I2C OLED Display
Winstar WEO012832F is a popular small OLED display which is made of 128x32 pixels, diagonal size 0.91 inch, it's very suitable for wearable device. The WEO012832F has the same mechanical dimension as WEO012832D but having different pin assignment and supports different interface. WEO012832F module is built in with SSD1306 controller IC; it supports I2C interface and having 14 pins FPC pintout. As to the WEO012832D module is also built in with SSD1306 IC but it communicates via SPI interface and having 15 pins FPC pinout.
WEO012832F is a COG structure OLED display, its controller is built-in voltage generation only need a single 3V power supply. This OLED I2C Display is lightweight, low power and small, this COG module is suitable for wall / meter devices, home applications, Cloud/IoT system, handheld instruments, intelligent technology devices, energy systems, automotive, communication systems, medical instrument, wearable device, etc. WEO012832F OLED module can be operating at temperatures from -40℃ to +80℃; its storage temperatures range from -40℃ to +85℃.
DRAWING
Data source ref: WEO012832FWPP3N00001
SPECIFICATIONS
Interface Pin Function
| No. | Symbol | Function |
|---|---|---|
| 1 | C2P | Positive Terminal of the Flying Inverting CapacitorNegative Terminal of the Flying Boost CapacitorThe charge-pump capacitors are required between the terminals. They must be floated when the converter is not used. |
| 2 | C2N | |
| 3 | C1P | |
| 4 | C1N | |
| 5 | VBAT | Power Supply for DC/DC Converter Circuit This is the power supply pin for the internal buffer of the DC/DC voltage converter. It must be connected to external source when the converter is used. It should be connected to VDD when the converter is not used. |
| 6 | NC | No connection |
| 7 | VSS | Ground of Logic Circuit This is a ground pin. It acts as a reference for the logic pins. It must be connected to external ground. |
| 8 | VDD | Power Supply for Logic This is a voltage supply pin. It must be connected to external source. |
| 9 | RES# | Power Reset for Controller and Driver This pin is reset signal input. When the pin is low, initialization of the chip is executed. |
| 10 | SCL | I2C mode is selected, D2, D1 should be tied together and serve as SDAout, SDAin inapplication and D0 is the serial clock input, SCL. |
| 11 | SDA | |
| 12 | IREF | Current Reference for Brightness Adjustment This pin is segment current reference pin. A resistor should be connected between this pin and VSS. Set the current lower than 12.5μA. |
| 13 | VCOMH | Voltage Output High Level for COM Signal This pin is the input pin for the voltage output high level for COM signals. A capacitor should be connected between this pin and VSS. |
| 14 | VCC | Power Supply for OEL Panel This is the most positive voltage supply pin of the chip. A stabilization capacitor should be connected between this pin and VSS when the converter is used. It must be connected to external source when the converter is not used. |
General Specification
| Item | Dimension | Unit |
|---|---|---|
| Dot Matrix | 128 × 32 | Dots |
| Module dimension | 30.0 × 11.5 × 1.26 | mm |
| Active Area | 22.384 × 5.584 | mm |
| Pixel Size | 0.152 × 0.152 | mm |
| Pixel Pitch | 0.175 × 0.175 | mm |
| Display Mode | Passive Matrix | |
| Display Color | Monochrome | |
| Drive Duty | 1/32 Duty | |
| IC | SSD1306 | |
| Interface | I2C | |
| Size | 0.91 inch | |
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply Voltage for Logic | VDD | 0 | 4.0 | V |
| Supply Voltage for Display | VCC | 0 | 16.0 | V |
| Operating Temperature | TOP | -40 | +80 | °C |
| Storage Temperature | TSTG | -40 | +85 | °C |
Electronical Characteristics
DC Electrical Characteristics
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage for Logic | VDD | － | 2.8 | 3.0 | 3.3 | V |
| Supply Voltage for Display | VCC | － | 7 | 7.25 | 8 | V |
| Input High Volt. | VIH | － | 0.8×VDD | － | VDDIO | V |
| Input Low Volt. | VIL | － | 0 | － | 0.2×VDD | V |
| Output High Volt. | VOH | － | 0.9×VDD | － | VDDIO | V |
| Output Low Volt. | VOL | － | 0 | － | 0.1×VDD | V |
| Operating Current for VCC (VCC Supplied Externally) | ICC | Vcc =7.25V | － | 7 | 11 | mA |
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