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Item #:
88991562
RAK1921 WisBlock OLED Display Module, I2C SSD1306, Text and Graphic Visualization, for Meshtastic
Item #:
88991562
KRW 30778
Price Details
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Imported from USA store
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Order now and get it around Tuesday, August 25
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The RAK1921 is a user-friendly OLED display module that simplifies data visualization for your WisBlock solution.
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What Stands Out
High-Resolution Display
The RAK1921 features an OLED display with exceptional resolution, offering clear text and vivid graphics which enhances visibility and user interaction, ideal for data visualization.
I2C Connectivity
With I2C communication, this module ensures easy integration and compatibility with various devices, allowing for streamlined setup and enhanced project flexibility, particularly for Meshtastic users.
Versatile Visualization
Supports both text and graphic visualization, making it suitable for diverse applications ranging from simple data readings to complex graphical displays, catering to a wide array of user needs.
Product Details
| Product Dimensions (L x W x H) | 1.3 x 1.3 x 0.4 inches (3.3 x 3.3 x 1 cm) |
| Item Weight | 0.352 ounces (9.98 grams) |
| Manufacturer | RAK |
| Item model number | RAK1921 |
| Date First Available | June 14, 2024 |
Who Should Buy?
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Developers
Ideal for developers creating IoT applications needing a compact display for text and graphical data presentation.
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Hobbyists
Great for hobbyists experimenting with Arduino or Raspberry Pi projects that require visual output for sensor data.
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Field Workers
Useful for field workers utilizing Meshtastic devices to receive visual updates from remote data, enhancing information accessibility.
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Casual Users
Not suitable for casual users unfamiliar with programming or electronics, as it requires technical skills to implement.
Product Description
RAK1921 WisBlock OLED Display Module, I2C SSD1306, Text and Graphic Visualization, for Meshtastic
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What features does the RAK1921 WisBlock OLED Display Module offer?
Answer: The RAK1921 WisBlock OLED Display Module provides high-resolution graphic and text visualization capabilities through its I2C SSD1306 controller. This module supports low power consumption, making it ideal for battery-operated devices. Users can utilize it for custom applications like displaying sensor data or notifications, enhancing user interaction in projects involving Meshtastic designs. -
Question:
How does the RAK1921 connect to other devices?
Answer: The RAK1921 WisBlock OLED Display connects via I2C communication protocol, which allows easy integration with various microcontrollers and development boards. This protocol uses only two wires for data transfer, ensuring a tidy and efficient setup. It is particularly useful in IoT projects, where multiple sensors and modules are involved, allowing for seamless data visualization and management. -
Question:
What are some practical applications for the RAK1921 display?
Answer: The RAK1921 OLED display can be used in applications ranging from home automation systems to weather stations. For example, you could display real-time temperature and humidity readings, or status notifications from smart home devices. This versatility makes it a perfect choice for developers looking to enhance user interface experiences with clear and vibrant data visualization. -
Question:
Can the RAK1921 display show images and graphics?
Answer: Yes, the RAK1921 WisBlock OLED Display is capable of rendering both text and graphics, allowing for impressive custom visuals. With a resolution that supports various image formats, it can display logos, icons, and other graphical elements. This feature is particularly beneficial for projects that require user engagement, such as interactive displays or device status indicators. -
Question:
Is the RAK1921 display suitable for outdoor use?
Answer: While the RAK1921 WisBlock OLED Display is primarily designed for indoor applications, it can be used outdoors if placed in protective housing to shield it from elements like moisture and extreme temperatures. Consider external factors influencing visibility and durability for outdoor projects, ensuring the display operates effectively while providing necessary data. -
Question:
What development platforms are compatible with RAK1921?
Answer: The RAK1921 WisBlock OLED Display Module is compatible with various microcontroller platforms, including Arduino, Raspberry Pi, and ESP32. Developers can utilize rich libraries provided for these platforms, significantly simplifying the process of integrating the display into their projects. This compatibility allows for a wide range of applications from educational projects to professional prototypes. -
Question:
Does the RAK1921 require special software to operate?
Answer: Operating the RAK1921 WisBlock OLED Display typically involves basic libraries available on most development platforms, such as the Adafruit SSD1306 library for Arduino. This reduces the learning curve for beginners while providing advanced features for experienced developers. Such accessibility makes the display module suitable for users at different skill levels to create visually appealing applications. -
Question:
What is the power consumption of the RAK1921 display?
Answer: The RAK1921 WisBlock OLED Display is designed for low power consumption, operating efficiently even in battery-powered projects. Depending on the brightness settings, it can operate for extended periods, making it an excellent choice for sustainable developments or remote projects such as environmental monitoring stations where long battery life is essential. -
Question:
What size is the RAK1921 OLED display?
Answer: The RAK1921 WisBlock OLED Display typically features a compact size of 128x64 pixels. This size strikes a balance between visibility and space efficiency, allowing easy integration into various projects without occupying excessive room. It is particularly suitable for projects where space is a constraint, such as wearable devices or compact IoT solutions. -
Question:
Where can I buy RAK1921 WisBlock OLED Display Module, I2C SSD1306, Text and Graphic Visualization, for Meshtastic in South Korea?
Answer: You can purchase the RAK1921 WisBlock OLED Display Module from Ubuy in South Korea. Ubuy offers a broad range of electronic components, including the RAK1921, making it convenient for users to find and buy this display module along with other related products necessary for their projects.
RAK LCD Graphic Displays RAK1921 Editorial Review
The RAK1921 WisBlock OLED Display Module is noted for its effective performance within the WisBlock ecosystem, particularly among users integrating it into projects like Meshtastic. Customers have praised its easy soldering and functionality with systems such as the RAK4631, highlighting that it works seamlessly once installed. However, there are mixed feelings about the necessity of the module, especially for home nodes, where many find that USB or Bluetooth provides sufficient information without the added complexity of the OLED display. Users note that the small size of the module can make soldering tricky, especially for those with less steady hands. This can deter some potential buyers who may find the soldering challenge daunting. The display itself is described as capable and effective, serving its purpose well once properly mounted, yet customers indicate that it is a standard model, making it available at lower prices elsewhere. There’s also some disappointment regarding the lack of pre-soldered headers, which seems to discourage some customers from viewing it as the best option when cheaper alternatives with similar or better features are available. This culminates in a perception that while the display performs adequately, its pricing might not reflect its competitive positioning in the market. In conclusion, while the RAK1921 WisBlock OLED Display Module is functional and integrates well within the WisBlock platform, potential buyers should weigh its price against the more affordable alternatives that offer similar capabilities. **
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Pros
- Seamless functionality with WisBlock systems, particularly RAK4631.
- Easy soldering for users with steady hands.
- Effective in providing insights into hardware performance.
Cons
- Small size may make soldering challenging for some users.
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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KRW 30778
Order now and get it around Tuesday, August 25
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- User-friendly OLED display for easy data visualization.
- Supports both text and graphic display for versatile applications.
- Pre-built software library for quick integration and deployment.
- Compact solution when used with RAK4631 WisBlock Core.
- Ideal for bright environments, ensuring readability.
- Requires soldering; not an all-in-one or touchscreen display.
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