TM1637 4 Digit 7 Segment LED Display Module

Display time, counters, sensor readings, and numeric data with this easy-to-use TM1637-based 4-digit 7-segment LED display module. Requiring only 2 data pins (CLK and DIO), it's one of the simplest ways to add a bright, readable numeric display to your Arduino, ESP32, or Raspberry Pi projects. Available from The Tech Depot, Bengaluru with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.

Specifications

Key Features

• Simple 2-Wire Interface: Uses only CLK and DIO pins, freeing up valuable GPIO pins on your microcontroller for other peripherals.
• Built-In TM1637 Driver: Handles all segment multiplexing and LED driving internally - no need for shift registers, resistors, or complex wiring.
• 8-Level Brightness Control: Adjust display brightness programmatically to suit ambient lighting conditions or conserve power.
• Center Colon for Clock Display: Built-in colon between digits 2 and 3 makes it ideal for HH:MM time displays and stopwatch applications.
• Wide Voltage Range (3.3V-5V): Works directly with both 3.3V logic (ESP32, Raspberry Pi) and 5V logic (Arduino Uno, Mega) without level shifters.
• Excellent Library Ecosystem: Well-supported by popular Arduino and MicroPython libraries with functions for displaying numbers, characters, and custom segments.
• Compact Form Factor: Small enough to embed in enclosures, panel-mount in project boxes, or place on a breadboard for prototyping.
• Low Power Consumption: Draws minimal current, suitable for battery-powered and portable projects.

Why Choose the TM1637 Display Module?

• 100% authentic modules sourced from trusted suppliers - no clones with dim LEDs or faulty drivers
• 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most locations across India
• Expert technical support included - get help with wiring, code, and integration
• Beginner-friendly with extensive online tutorials, example code, and community resources
• Ideal balance of simplicity, cost, and functionality for numeric display applications

How It Works

The TM1637 IC is a dedicated LED driver that communicates with your microcontroller via a custom 2-wire serial protocol (similar to, but not identical to, I2C). Your microcontroller sends data over the DIO (Data Input/Output) line, synchronized by the CLK (Clock) line. The TM1637 decodes this data and drives the appropriate segments on each of the four 7-segment digits. Each digit consists of 7 LED segments (a-g) plus a decimal point, allowing it to display numbers 0-9, select letters (A, b, C, d, E, F, H, L, etc.), and custom patterns. The center colon is controlled as a separate segment tied to the second digit's data byte.

Pin Configuration

Wiring Guide

Frequently Asked Questions

Buy TM1637 4 Digit 7 Segment LED Display Online in India

Purchase the TM1637 4 Digit 7 Segment LED Display online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on TM1637 4 Digit 7 Segment LED Display with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.

Looking to buy TM1637 4 Digit 7 Segment LED Display at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.