Displays

TM1637

Simple 4-digit 7-segment LED display driver module used for clocks and counters.

China-madeTitan MicroActiveModerate

Best For

Projects needing 7-segment and Low cost with a commonly available displays part.

Avoid If

You need production-grade certainty without checking the exact module vendor, pinout, and library maintenance status.

Quick Decision Notes

TM1637 is indexed as a displays part from Titan Micro. ChipScout tracks it by practical maker-facing dimensions: interfaces, library readiness, estimated price, field-level sources, and whether the page is strong enough for selection rather than only lookup.

Technical Specifications

Display7-segment LEDSource: Titan Micro
Interface2-wire proprietarySource: Titan Micro
Digits4 commonSource: Titan Micro
Working Voltage3.3V - 5V moduleSource: Titan Micro

Common Use Cases

  • Maker prototypes
  • Low-cost modules
  • Educational hardware

Known Issues

  • Breakout boards may use different pin labels or regulator choices
  • Clone modules can differ from the original datasheet part

Interfaces and Library Support

Interfaces
GPIO
Wireless
None
Voltage
3.3V
Libraries
Arduino verifiedMicroPython verified
Data Integrity74% confidence
Sourcehttps://www.titanmec.com/
Last verified2026-05-20
Core specsVerified
PinoutAvailable
Library supportChecked
Price rangePresent
Found a wrong spec?

Every field is meant to be source-backed. Corrections should include a datasheet URL, vendor page, module photo, or reproducible library test.

Submit correction

Source Resources

Pinout Table

VCC3.3VPower the module from a rail that matches the breakout board, not just the bare IC.
GNDCommon groundConnect ground between the controller, sensor/module, and external power supply.
SignalMCU GPIO / ADCUse a digital input, output, PWM, or ADC pin based on the module output type.

Pinout is not yet source-verified. Use the table as an integration checklist, then confirm exact pins against the module vendor page before wiring hardware.

Common Wiring

VCC

Power the module from a rail that matches the breakout board, not just the bare IC.

GND

Connect ground between the controller, sensor/module, and external power supply.

Signal

Use a digital input, output, PWM, or ADC pin based on the module output type.

Arduino Example

void setup() {
  Serial.begin(115200);
  Serial.println("TM1637 GPIO wiring smoke test");
}

void loop() {
  // Replace with the maintained TM1637 library or module protocol.
  Serial.println("Read or toggle the connected signal pin.");
  delay(1000);
}

MicroPython Example

from machine import Pin
import time

signal = Pin(0, Pin.IN)

while True:
    # Replace with the maintained TM1637 driver or module protocol.
    print("TM1637 signal:", signal.value())
    time.sleep(1)

Recommended Development Boards

ESP32-S3 display dev board

Good match for SPI/I2C displays and enough memory for UI experiments.

Arduino Uno R4 / compatible

Simple 5V classroom baseline when the display module includes level shifting.

Raspberry Pi Pico W

Useful MicroPython test target for SPI and I2C display drivers.

Alternative Model Reasons

FT6236DisplaysCompare this option when price or module availability is the deciding constraint.
GC9A01DisplaysCompare this option when price or module availability is the deciding constraint.
HT16K33DisplaysThis alternative currently has stronger source coverage and confidence in ChipScout.
ILI9341DisplaysThis alternative currently has stronger source coverage and confidence in ChipScout.

Common Questions

What is TM1637 best used for?

Projects needing 7-segment and Low cost with a commonly available displays part.

Does TM1637 support Arduino or MicroPython?

TM1637 has verified Arduino support and verified MicroPython support.

What interfaces does TM1637 use?

TM1637 lists GPIO; wireless support is no wireless protocol.

Compare TM1637 vs FT6236

Alternatives and Related Parts