DFRobot
3-wire Serial LCD Module (Arduino Compatible)
A 128 × 64 pixel graphic LCD module based on the ST7920 controller, featuring a blue backlight with white characters. Supports both parallel (8/4-bit) and SP...
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A 128 × 64 pixel graphic LCD module based on the ST7920 controller, featuring a blue backlight with white characters. Supports both parallel (8/4-bit) and SPI (3-wire serial) interfaces, with parallel mode set as the default. To switch to SPI mode, move the R9 resistor to the R10 position.
The display supports English characters, Chinese characters, and custom graphics, making it versatile for a range of Arduino and microcontroller projects. Includes a contrast adjustment and backlight control.
Key Features
- 128 × 64 Resolution – Graphic LCD with text and image support
- ST7920 Controller – Well-supported with available Arduino libraries
- Dual Interface – 8/4-bit parallel (default) or 3-wire SPI serial
- Blue Backlight – White characters on blue background
- 170° Viewing Angle – Wide visibility
- STN Display Technology
Specifications
- Power Supply: 4.5–5.5 V
- Controller: ST7920
- Resolution: 128 × 64 pixels
- Display Type: STN, blue with white characters
- Viewing Angle: 170°
- Interface: 8/4-bit parallel (default) or 3-bit SPI serial
- Module Size: 93 × 70 × 22 mm
- Visible Area: 73 × 39 mm
Ideal For
- Arduino and microcontroller display projects
- Menu systems and data readouts
- Custom graphics and character displays
Package Contents
- 1× 3-Wire Serial LCD Module (128 × 64)
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- LCD
- LCD stands for liquid crystal display, a screen technology that uses a backlight and liquid crystals to show images or text. It matters because LCD modules usually need a display driver and enough controller pins or a bus interface to send image data.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
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Brands
Displays & Screens
Supplier page — dfrobot.com
Supplier Description · 1.6 MB · Click any page to view full size
DFR0091 3 wire aerial lcd display module schematics V1.0
Schematic · 40.4 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
