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TM1637 6-Digit 7-Segment LED Display Module 0.56″ Arduino

TM1637 0.56″ 4-Digit 7-Segment LED Display Module for Arduino Time Clock – Red, Blue, Green, Yellow, White
MAX7219 8 Digit 7 Segment LED Display Module 5V SPI for Arduino
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Description

🔢 TM1637 6-Digit 7-Segment LED Display Module 0.56″ for Arduino | AuscomTech

The TM1637 6-Digit LED Display Module is a compact, efficient numeric display solution designed for Arduino and microcontroller projects that require clear, multi-digit visual output.

Using the TM1637 driver IC, this module provides a bright 0.56-inch 6-digit 7-segment display while requiring only two digital I/O pins, making it ideal for clocks, timers, counters, meters, and data visualisation in embedded systems. Multiple colour options allow easy integration into both functional and aesthetic designs.

⭐ Key Features

🔢 6-Digit 7-Segment Display
Provides extended numeric range compared to standard 4-digit modules, ideal for clocks and counters.

📏 0.56-Inch High-Visibility Digits
Large, clear digits ensure excellent readability at a distance.

🔌 Simple 2-Wire Interface
Uses CLK and DIO lines, reducing wiring complexity and conserving I/O pins.

🧠 TM1637 Driver IC
Integrated controller handles multiplexing and brightness control efficiently.

🎨 Multiple LED Colour Options
Available in Red, Green, Blue, Yellow, and White to suit different projects and environments.

⚡ Low-Power 5V Operation
Designed for standard 5V logic systems used in most Arduino and MCU platforms.

📊 Technical Specifications

Driver IC: TM1637
Display Type: 7-segment LED
Digit Count: 6
Digit Size: 0.56 inch
Operating Voltage: 5V DC
Interface: 2-wire (CLK, DIO)
Module Dimensions: Approx. 76 × 19 mm
LED Colours: Red / Green / Blue / Yellow / White

⚠️ Important Notes

• Designed for 5V logic systems
• Uses digital GPIO pins (not I²C)
• Requires TM1637-compatible library for programming
• Brightness and refresh rate controlled in software

🧩 Compatible With

• Arduino Uno / Mega / Nano
• ESP8266 / ESP32
• Raspberry Pi (GPIO)
• STM32 microcontrollers
• TM1637 Arduino libraries

⚙️ Typical Applications

• Digital clocks and timers
• Stopwatches and counters
• Temperature and sensor displays
• Voltage and current meters
• DIY electronics and IoT projects
• Educational and prototyping builds

📦 Package Includes

• 1 × TM1637 6-Digit LED Display Module
(Colour selectable: Red / Green / Blue / Yellow / White)

📌 Code Examples – TM1637 0.56″ 6-Digit LED Display Module

📋 Overview

The TM1637 is a simple, low-cost LED driver that controls up to 6 digits with brightness control and minimal wiring. It uses a 2-wire protocol (clock + data), and many Arduino/ESP32 libraries support it.

This section includes:

  • Simple display examples (Arduino & ESP32)

  • Showing numbers and time

  • Brightness control

  • Using multiple displays

🔌 Wiring (TM1637 ↔ Arduino / ESP32 / NodeMCU)

TM1637 Pin Connects To
VCC 5V (Arduino) / 3.3V (ESP32 3V3)
GND GND
CLK Digital pin (e.g., D2)
DIO Digital pin (e.g., D3)

⚠ Ensure your board logic matches the display voltage. For 5V Arduinos, 5V is fine. For 3.3V logic boards (ESP32/NodeMCU), power at 3.3V.

📦 Library Setup (Arduino)

In the Arduino IDE:

  1. Go to Sketch → Include Library → Manage Libraries

  2. Search for TM1637

  3. Install TM1637Display by avishorp (or equivalent)

🧪 1️⃣ Arduino – Basic Number Display

#include <TM1637Display.h>

// Define the connection pins:
#define CLK 2
#define DIO 3

TM1637Display display(CLK, DIO);

void setup() {
display.setBrightness(0x0f); // 0x00 (lowest) to 0x0f (highest)
}

void loop() {
// Display the number 123456
display.showNumberDec(123456);
delay(1000);

// Display another number
display.showNumberDec(654321, true); // leading zeros
delay(1000);
}

📊 2️⃣ Arduino – Display Time (HHMMSS)

#include <TM1637Display.h>
#define CLK 2
#define DIO 3TM1637Display display(CLK, DIO);

int hours = 12;
int minutes = 34;
int seconds = 56;

void setup() {
display.setBrightness(0x0f);
}

void loop() {
int value = (hours * 10000) + (minutes * 100) + seconds;
display.showNumberDec(value, false, 6, 0); // 6 digits

seconds++;
if (seconds >= 60) {
seconds = 0;
minutes++;
if (minutes >= 60) {
minutes = 0;
hours++;
if (hours >= 24) hours = 0;
}
}

delay(1000);
}

This example treats the display as a simple digital clock (no colon).

🎚 3️⃣ Brightness Control

#include <TM1637Display.h>
#define CLK 2
#define DIO 3TM1637Display display(CLK, DIO);

void setup() {
// Ramp brightness
for (int b = 0; b <= 0x0f; b++) {
display.setBrightness(b);
display.showNumberDec(0x000000 + b); // show brightness level
delay(200);
}
}

void loop() {
// hold max brightness for demo
display.showNumberDec(888888);
delay(1000);
}

Brightness values range from 0x00 (dim) to 0x0F (bright).

🧪 4️⃣ ESP32 Example

ESP32 wiring example uses GPIO pins you choose:

#include <TM1637Display.h>

#define CLK 16
#define DIO 17

TM1637Display display(CLK, DIO);

void setup() {
Serial.begin(115200);
display.setBrightness(0x0f);
display.showNumberDec(0); // initial value
}

void loop() {
static int count = 0;
display.showNumberDec(count++);
if (count > 999999) count = 0;
delay(500);
}

🧠 Notes & Tips

Leading zeros
To show leading zeros (e.g., 001234):

display.showNumberDec(1234, true);

Negative numbers
The library supports negative numbers too:

display.showNumberDec(-42);

Custom segments
You can define segment patterns manually for letters / icons if needed.

🔄 Multiple Displays (Chaining)

You can chain multiple modules — just ensure each has its own CLK/DIO pair and use separate TM1637Display instances.

Example:

TM1637Display disp1(2, 3);
TM1637Display disp2(4, 5);disp1.showNumberDec(111111);
disp2.showNumberDec(222222);

Additional information

Weight N/A
Dimensions N/A
Colour

Yellow, Red, Green, Blue, White

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