---
product_id: 469308615
title: "2.4\" 2.42 inch 128x64 OLED LCD Display Module SSD1309 7 Pin SPI/IIC I2C Serial Interface for Arduino UNO R3 DIY Electronic - White Light"
brand: "dweii"
price: "211 kr"
currency: DKK
in_stock: true
reviews_count: 7
url: https://www.desertcart.dk/products/469308615-2-4-2-42-inch-128x64-oled-lcd-display-module
store_origin: DK
region: Denmark
---

# 2.42 inch diagonal OLED screen Switchable SPI/I2C interface 128x64 crisp pixel resolution 2.4" 2.42 inch 128x64 OLED LCD Display Module SSD1309 7 Pin SPI/IIC I2C Serial Interface for Arduino UNO R3 DIY Electronic - White Light

**Brand:** dweii
**Price:** 211 kr
**Availability:** ✅ In Stock

## Summary

> ✨ Elevate your DIY game with OLED brilliance! 🔥

## Quick Answers

- **What is this?** 2.4" 2.42 inch 128x64 OLED LCD Display Module SSD1309 7 Pin SPI/IIC I2C Serial Interface for Arduino UNO R3 DIY Electronic - White Light by dweii
- **How much does it cost?** 211 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/469308615-2-4-2-42-inch-128x64-oled-lcd-display-module)

## Best For

- dweii enthusiasts

## Why This Product

- Trusted dweii brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightning-Fast Response:** Experience near-instant screen updates with OLED’s superior refresh speed over traditional LCDs.
- • **Ultra-Compact Powerhouse:** A sleek 2.42" display packing 128x64 pixels, ideal for smart wearables, MP3 players, and health devices.
- • **Dual Interface Flexibility:** Seamlessly toggle between SPI and I2C protocols with simple resistor configuration—perfect for versatile Arduino projects.
- • **Brilliant Self-Illumination:** OLED tech emits its own light—no backlight needed for stunning clarity in any lighting.
- • **Contrast That Commands Attention:** High contrast ratio ensures your data pops even in dim environments—never miss a detail.

## Overview

This 2.42-inch OLED display module features a sharp 128x64 resolution driven by the SSD1309 IC, offering self-emissive lighting without backlight. Its flexible SPI/I2C interface switchability and ultra-fast response time make it a must-have for Arduino enthusiasts and professionals crafting sleek, high-contrast electronic displays.

## Description

Feature:This is a 2.42 inch OLED display module of 128x64 resolution in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric currentWorking without backlight, the OLED display module could give out light by itselfIn low ambient light conditions such as a dark room, an OLED screen can achieve a higher contrast ratio than an LCDOLED display module also has a much faster response time than an LCDThe display with small dimension is suitable for MP3, function cellphone, smart health device, etcFeatures: Diagonal Screen Size: 2.42" Resolution: 128 * 64 Driver IC: SSD1309 SPI interface definition: 1.GND (power ground) 2.VCC (power supply positive)3.SCL (clock line) 4.SDA (data line) 5.RES (reset line) 6.DC (data / command) 7.CS (chip select)Package Included:1 * 2.4inch OLED LCD Display Module for Arduino

## Features

- ❃❃Interface Selection: to choose SPI or IIC interface through R3, R4, R5
- ❃❃SPI communication or I2C communication can be switched by configuring three resistors R3 R4 R5
- ❃❃This is a 2.42 inch OLED display module of 128x64 resolution in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current
- ❃❃Diagonal Screen Size: 2.42 inch
- ❃❃Driver IC: SSD1309

## Technical Specifications

| Specification | Value |
|---------------|-------|
| RAM | DDR2 |
| Brand | DWEII |
| Operating System | Linux |
| Item Weight | 1.41 ounces |
| Package Dimensions | 3.78 x 2.52 x 0.67 inches |
| Color | White Light |
| Processor Brand | Atmel |
| Number of Processors | 1 |
| Manufacturer | DWEII |
| ASIN | B0B2R57SCJ |
| Date First Available | May 31, 2022 |

## Product Details

- **Brand:** DWEII
- **Connectivity Technology:** I2C
- **Included Components:** 2.42 inch 128x64 OLED LCD Display Module
- **Operating System:** Linux
- **CPU Manufacturer:** Atmel

## Images

![2.4" 2.42 inch 128x64 OLED LCD Display Module SSD1309 7 Pin SPI/IIC I2C Serial Interface for Arduino UNO R3 DIY Electronic - White Light - Image 1](https://m.media-amazon.com/images/I/61KBroLidQL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product but don't ignore the RESET pin!
*by J***E on April 6, 2025*

My model looks different than the pictures: 1) pins are on left side (looking at screen), 2) Instructions for switching from SPI to I2C are on the silkscreen, 3) no resistors under the ribbon cable.In my picture you can see the back of the module, with instructions on the silkscreen on how to change from the default SPI (R5 bridged, R4 & R9 open) to I2C (R5 open, R4 & R9 bridged). I did NOT have to disengage the ribbon cable.A couple notes:- The Adafruit_SSD1306 library works even though this is a SSD1309, and I highly recommend it.- When using I2C, the DC pin state determines the address. DC low/floating is 0x3C, DC high is 0x3D.- The RESET pin must be managed properly for this OLED to work, even in I2C mode. The screen is initialized by first receiving power and then (for Arduino) receiving the .begin() command. When .begin() runs, it resets the screen through the RESET pin and voila, you see the startup image. I tried a variety of methods to get it to work without connecting the reset pin, including a RC timer and software reset commands, without any luck. You can connect the reset pin to any available output pin on your Arduino, just make sure to specify it when you initialized the screen object, e.g. Adafruit_SSD1306 OLED(128, 64, &Wire, CHOSEN_PIN)- There does not appear to be pullup resistors on the I2C pins. If you're connecting directly to an Arduino-like or anything else with I2C pullups, no problem, but you may have to add pullups for anything else like a basic multiplexer.Overall, works great. Bright screen, text is easy to read, fast response time, tons of versatility built into the library (text scrolling, simple graphics). Highly recommend for the price, if you don't mind a little setup effort.

### ⭐ Not worth the trouble, buy the real thing
*by D***K on April 13, 2025*

The display that I received was not the display that is shown on the listing or in some of the reviews - the pins are on the side of the display and not the top. Absolutely zero documentation was included other than a cryptic table in silk screen on the board itself. Extremely detailed surface mount DIY soldering of miniscule components is required if you want to switch this display from SPI to I2C, which did not work for me even after I found out (from the other reviews) what to do. As far as I can tell, this unit is DOA

### ⭐⭐⭐⭐⭐ Some implementation hints for this beautiful display
*by L***K on February 8, 2024*

Although this 2.4" module uses the SSD1309 controller it works fine with the SSD1306 driver I use for the 0.96 inch OLED module Amazon also sells. They are both 128x64. As others have pointed out, some rework is required to convert this module from the default SPI interface to I2C. Some genius decided to put three of the tiny resistor pads that require jumpers UNDER the flex cable that attaches the LCD panel to the board. After some study I figured out how to unplug this fragile cable without mishap. Two tiny black plastic handles flank the white connector. Gently sliding them away from the connector relieves the holding force and the cable comes out easily, To reinsert the cable push it back in and snap the two black handles back into the white enclosure. If you don't happen to have any zero ohm 0603 surface mount resistors handy (!!!) a simple wire or solder jumper works fine at each of the sites. You need four jumpers, one outside the LCD cable (after removing its resistor) and three under it as marked on the board. I power the board with 3.3V and confirmed that the RES pin does nothing--apparently it's only for the SPI interface.

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-20*