Bit-Tree Creativity - TM1637_0.8-inch 4-Digit Digital Tube Module with Clock Colon

TM1637_0.8-inch 4-Digit Digital Tube Module with Clock Colon (A050)

BIT-TREE TM1637 4-digit digital tube module adopts 0.8-inch high-brightness digital tubes with clock colon display. Controlled by TM1637 driver chip, it supports I2C two-wire communication and 3.3V-5V wide voltage power supply. Simple wiring and stable display, ideal for clock, counting, score, sensor data display and programming teaching.

0.8-inch High-brightness Large Screen 0.8-inch large-size digital tube, clear display, strong visibility under various ambient light conditions.

Two-wire IO-saving Driver I2C two-line communication, occupies only two IO ports of the controller, greatly saving hardware resources.

With Clock Colon Display Built-in clock colon indicator, perfect for making electronic clock and timing projects.

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STEAM skills like programming will be a core competency for the next generation, and the time to cultivate this ability is now.

Parameter Category	Item	Specification Details
Basic Parameters	Module Model	TM1637_0.8‑inch 4‑Digit Digital Tube Module with Clock Dots (A050)
	Digital Tube Model	SEG8042BS. 4‑digit, common‑anode / common‑cathode selectable. Built‑in decimal points and clock separator dots.
	Driver Chip	TM1637 dedicated LED digital‑tube driver chip, supports 8‑level software‑controlled brightness adjustment.
	Digital Tube Specifications	0.8 inch, digit height: 20 mm; 4‑digit 7‑segment display. Each digit has an independent clock decimal point.
	PCB Overall Dimensions	88.00 mm × 30.00 mm, pre‑drilled mounting holes.
	Visible Display Area	80.00 mm × 22.00 mm, 4 independent clock dots, supports XX:XX time‑format display.
	Supply Voltage	3.3V~5V DC; 5V recommended; compatible with 3.3V MCU systems.
	Communication Interface	Two‑wire interface (CLK clock + DIO data), emulated I2C communication protocol.
	On‑board Hardware Functions	PWR power indicator LED, software brightness adjustment, reverse‑polarity protected 4‑Pin connector, power‑supply filter circuit.
	Product Weight	41 g (with housing); 26 g (bare PCB)
4‑Pin Interface Pin Definition	CLK	Synchronous clock signal pin; can connect to any general‑purpose digital IO of the MCU.
	DIO	Bidirectional data signal pin; can connect to any general‑purpose digital IO of the MCU.
	VCC	Power positive pin, for 5V / 3.3V power input.
	GND	Power ground pin. Must share common ground with the MCU system.
Core Features‑Clock‑Dot Display	Each digit has an independent decimal point. Middle separator dots can be illuminated for XX:XX clock‑style display.
Core Features‑Brightness Control	Built‑in 8‑level brightness‑adjustment register. Program can dynamically adjust display brightness.
Core Features‑Built‑in Scan Driver	On‑chip automatic scanning circuit. No manual cyclic refresh required from MCU, reduces main‑controller workload and IO resource consumption.
Core Features‑Anti‑Interference Design	On‑board power‑supply filter capacitors suppress supply ripple. No flicker or number glitches during long‑duration operation.
Packaging Options	Available Packages	① Anti‑static bag soft package ② White‑card hanging‑hole gift box ③ Kraft paper box

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