Product Description
| PACKAGE DIMENSION | INTERNAL CIRCUIT DIAGRAM | 3D Image |
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D40571-M LED Dot Matrix Display – Introduction
The D40571-M is a compact LED dot matrix display module manufactured by the brand TOYO LED. It is designed for electronic devices that need to display numbers, characters, or simple graphics using a grid of light-emitting diodes.
Key Overview
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Matrix size: 5 columns × 7 rows (35 LEDs total)
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Display type: Single-color LED dot matrix
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Package: Through-hole module for PCB mounting
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Pins: 14 pins for row and column control
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Typical use: Microcontroller-based displays
How It Works
The display is arranged as a 5×7 LED grid. Each LED is located at the intersection of a row and a column. By controlling which rows and columns receive current, specific LEDs light up to form characters or patterns.
For example:
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Turning on certain LEDs can create letters (A–Z)
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Lighting specific dots can display numbers (0–9)
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Multiple modules can be combined to create scrolling text displays
Internal Structure
Inside the module:
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LEDs are wired in a matrix configuration.
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The pins correspond to row lines and column lines.
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A microcontroller or driver IC scans the rows/columns rapidly to display stable characters.
Common Applications
This type of LED matrix is widely used in:
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Digital clocks ⏰
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Electronic scoreboards
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Industrial control panels
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Microcontroller projects (Arduino, PIC, STM32)
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Information displays and signage
Advantages
✔ Compact and easy to mount
✔ Low power consumption
✔ Simple interface with microcontrollers
✔ Expandable for larger displays