4 Digit 7 Segment LED Display Module

Specification: A 4-Digit 7-Segment LED Display Module is an electronic display device used to show numerical values from 0000 to 9999, along with some alphabetic characters and symbols. It consists of four individual 7-segment LED displays arranged in a single package. Each digit is made up of seven LED segments (labeled A to G) and an optional decimal point (DP), which are illuminated in different combinations to display numbers and characters

 The module is widely used in digital clocks, timers, counters, voltmeters, frequency meters, temperature displays, and embedded systems. It is commonly interfaced with microcontrollers such as Arduino, ESP32, PIC, AVR, and 8051. Many versions of the module use the TM1637 driver IC, which simplifies communication by requiring only two data pins (CLK and DIO), reducing the number of microcontroller I/O pins.

Technical Specifications

·         Product Name: 4-Digit 7-Segment LED Display Module

·         Display Type: 4-Digit 7-Segment LED

·         Driver IC: TM1637 (for TM1637 modules)

·         Display Colour: Red (Green, Blue)

·         Operating Voltage: 3.3 V – 5 V DC

·         Operating Current: 30–80 mA (typical)

·         Communication Interface: 2-Wire Serial (CLK and DIO)

·         Number of Digits: 4

·         Segments per Digit: 7 Segments + Decimal Point

·         Brightness Control: 8 Adjustable Levels

·         Display Range: 0000–9999

·         Operating Temperature: −20°C to +70°C

·         Dimensions: Approximately 42 × 24 × 12 mm

·         Compatible Controllers: Arduino, ESP32, ESP8266, PIC, AVR, STM32, Raspberry Pi

Pin Configuration

·         VCC: Power Supply (3.3–5 V)

·         GND: Ground

·         CLK: Clock Signal

·         DIO: Data Input/ Output

·         Applications: Digital clocks, Countdown timers, Electronic counters, Temperature and humidity displays, Voltmeters and ammeters, Stopwatch circuits, Industrial control panels, Arduino and IoT projects