TM1637 4 Digit 7 Segment LED Display Documentation

Display Type

7-Segment LED

Number of Digits

4

Operating Voltage

5V

Operating Current

Approximately 10mA

View Angle

Up to 120 degrees

Brightness

High

Driver IC

TM1637

Interface

5-pin (CLK, DIO, VCC, GND)

Operating Temperature

-20C to 70C

Storage Temperature

-30C to 85C

Applications

The TM1637 4 Digit 7 Segment LED Display is suitable for various IoT and embedded system applications, including

Arduino and Raspberry Pi projects

Weather stations

Clocks and timers

Industrial control systems

Home automation systems

Robotics and automation projects

Medical devices

Consumer electronics

In summary, the TM1637 4 Digit 7 Segment LED Display is a compact, low-power, and easy-to-use display module suitable for various applications that require a numerical display. Its simple interface, low power consumption, and high brightness make it an ideal choice for IoT and embedded system projects.

Pin Configuration

TM1637 4 Digit 7 Segment LED Display Pinout Explanation
The TM1637 4 Digit 7 Segment LED Display is a popular IoT component used for displaying numerical information in various applications. It features a compact design with a single-row 4-digit 7-segment LED display and a built-in TM1637 driver chip. Here's a detailed explanation of the pins and their connections:
Pinout Structure:
The TM1637 4 Digit 7 Segment LED Display has a total of 9 pins, which are divided into three categories:
Power Pins (2)
VCC (Pin 1): Positive power supply pin. Connect to a power source (typically 5V) to power the display.
GND (Pin 9): Ground pin. Connect to the ground of the power source.
Data Pins (4)
DIO (Data Input/Output, Pin 2): Bi-directional data pin used for transmitting and receiving data between the microcontroller and the TM1637 driver chip.
CLK (Clock, Pin 3): Clock pin used to synchronize data transmission between the microcontroller and the TM1637 driver chip.
STB (Strobe, Pin 4): Strobe pin used to latch data onto the display.
WR (Write, Pin 5): Write pin used to initiate data write operations to the display.
LED Segment Pins (3)
COM (Common Cathode, Pin 6): Common cathode pin for the 7-segment LED display.
SEG A (Segment A, Pin 7): Segment A pin for the 7-segment LED display.
SEG B (Segment B, Pin 8): Segment B pin for the 7-segment LED display.
Connection Structure:
To connect the TM1637 4 Digit 7 Segment LED Display to a microcontroller, follow this structure:
1. Power Connection:
Connect VCC (Pin 1) to the 5V power source.
Connect GND (Pin 9) to the ground of the power source.
2. Data Connection:
Connect DIO (Pin 2) to a digital I/O pin on the microcontroller (e.g., Arduino's digital pin 12).
Connect CLK (Pin 3) to a digital I/O pin on the microcontroller (e.g., Arduino's digital pin 13).
Connect STB (Pin 4) to a digital I/O pin on the microcontroller (e.g., Arduino's digital pin 11).
Connect WR (Pin 5) to a digital I/O pin on the microcontroller (e.g., Arduino's digital pin 10).
3. LED Segment Connection:
Connect COM (Pin 6) to the negative leg of the LED segments ( cathode).
Connect SEG A (Pin 7) to the anode of Segment A.
Connect SEG B (Pin 8) to the anode of Segment B.
Note:
Ensure proper connection of the power pins to avoid damage to the display.
Use a suitable resistor value (e.g., 220) for the LED segments to prevent overcurrent.
Consult the TM1637 datasheet and the microcontroller's documentation for detailed information on communication protocols and pin configurations.
By following this pinout explanation and connection structure, you can successfully integrate the TM1637 4 Digit 7 Segment LED Display into your IoT project.

Code Examples

TM1637 4 Digit 7 Segment LED Display Documentation

Overview

The TM1637 4 Digit 7 Segment LED Display is a compact, high-brightness display module designed for use in a wide range of applications, including IoT projects, robots, and home automation systems. This display module is based on the TM1637 IC, which provides a simple and efficient way to drive a 4-digit 7-segment LED display.

Pinout

The TM1637 4 Digit 7 Segment LED Display module typically has the following pinout:

| Pin | Function |
| --- | --- |
| VCC | Power supply (5V) |
| GND | Ground |
| CLK | Clock signal |
| DIO | Data signal |
| STB | Strobe signal |

Connecting to a Microcontroller

To use the TM1637 4 Digit 7 Segment LED Display module, you'll need to connect it to a microcontroller, such as an Arduino or Raspberry Pi. The following diagram shows a typical connection:

```
      +---------------+
      |  Microcontroller  |
      +---------------+
                  |
                  |
                  v
      +---------------+
      |  TM1637 Module  |
      |  (4 Digit 7-Seg)  |
      +---------------+
                  |
                  |
                  v
      +---------------+
      |  VCC  |  5V   |
      |  GND  |  GND  |
      |  CLK  |  Digital Pin  |
      |  DIO  |  Digital Pin  |
      |  STB  |  Digital Pin  |
      +---------------+
```

Code Examples

### Example 1: Arduino - Displaying a Static Number

This example demonstrates how to use the TM1637 4 Digit 7 Segment LED Display module with an Arduino board to display a static number:
```c
#include <TM1637.h>

#define CLK 2  // Clock signal pin
#define DIO 3  // Data signal pin
#define STB 4  // Strobe signal pin

TM1637 tm1637(CLK, DIO, STB);

void setup() {
  tm1637.init();
  tm1637.setBrightness(5);  // Set brightness to 5 (out of 7)
}

void loop() {
  tm1637.display(1234);  // Display the number 1234
  delay(1000);  // Wait 1 second
}
```

### Example 2: Raspberry Pi - Displaying a Dynamic Counter

This example demonstrates how to use the TM1637 4 Digit 7 Segment LED Display module with a Raspberry Pi to display a dynamic counter:
```python
import RPi.GPIO as GPIO
import time

# Define the pins
CLK = 17
DIO = 23
STB = 24

# Set up GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(CLK, GPIO.OUT)
GPIO.setup(DIO, GPIO.OUT)
GPIO.setup(STB, GPIO.OUT)

# Initialize the display
GPIO.output(STB, GPIO.LOW)
GPIO.output(CLK, GPIO.LOW)
GPIO.output(DIO, GPIO.LOW)

counter = 0
while True:
  # Display the counter value
  GPIO.output(STB, GPIO.LOW)
  for digit in str(counter).zfill(4):
    GPIO.output(DIO, int(digit))
    GPIO.output(CLK, GPIO.HIGH)
    GPIO.output(CLK, GPIO.LOW)
  GPIO.output(STB, GPIO.HIGH)

# Increment the counter
  counter += 1
  counter %= 10000  # Reset to 0 at 10000

# Wait 1 second
  time.sleep(1)
```

Note: These examples are just a starting point, and you'll need to adjust the pin connections and code to suit your specific project requirements. Additionally, make sure to consult the datasheet for the TM1637 IC and the module's documentation for more information on using the display module.