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Small 2.42 inch OLED display module with 128 by 64 white pixels on a green PCB

DWEII DW-WH11412 2.42" 128x64 OLED Display Module SSD1309

SKU CH-8RZK-TJV9Y

A 2.42" 128×64 OLED module driven by an SSD1309 controller with selectable SPI or I2C interface

  • Self-illuminating OLED needs no backlight
  • 128 by 64 pixel resolution on 2.42 inch screen
  • SPI or I2C selectable via resistor links
  • SSD1309 driver IC for direct microcontroller control
  • Compact module suited for wearable and portable projects

Compact OLED for DIY Projects

The DWEII DW-WH11412 is a 2.42 inch OLED module with a 128x64 resolution driven by the SSD1309 controller. It targets makers and students building Arduino-based gadgets who need a self-luminous display for portable or low-light devices.

Resistor-Selectable SPI or I2C

The 7-pin header exposes GND, VCC, SCL, SDA, RES, DC and CS lines. Three onboard resistors R3, R4 and R5 determine whether the module communicates over SPI or I2C, letting you match the interface to your microcontroller without extra wiring.

128x64 White OLED Panel

The organic emissive layer produces its own light, so no backlight is required. This yields higher contrast in dark environments and faster pixel response than LCD alternatives, making the 2.42 inch panel suitable for compact readouts on health trackers, MP3 players or custom instruments.

Pontos fortes

  • Self-illuminating OLED needs no backlight
  • 128 by 64 pixel resolution on 2.42 inch screen
  • SPI or I2C selectable via resistor links
  • SSD1309 driver IC for direct microcontroller control
  • Compact module suited for wearable and portable projects

Especificações

BrandDWEII
Part NumberDW-WH11412

Perguntas sobre este artigo

Does the DW-WH11412 module use SPI or I2C, and what does the interface choice limit?

The module supports both SPI and I2C; you select one by configuring resistors R3, R4 and R5. The chosen interface sets the wiring and the maximum clock speed the driver IC can accept.

What physical connection does the DW-WH11412 need to mount on a project board?

It provides a 7‑pin header with GND, VCC, SCL, SDA, RES, DC and CS pins that plug directly into a matching socket or breadboard.

How do I switch the DW-WH11412 between SPI and I2C modes, and what step is often missed?

Change the resistor links on R3, R4 and R5 to select the desired protocol, then verify the pin functions match the mode before powering the display.

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