1pcs TM1637 4 Bits/TM1638/MAX7219 8 bit Digital LED Display Module 7 Segment 0.36Inch Clock RED Anode Tube Four Serial Driver

TM1638 Module Specifications

Basic Parameters:

● Weight: 28g

● Size: 75×48mm (approx. 2.95×1.89 inches)

● Rated voltage: DC12V (working range: DC7.0-13.6V)

● Input current: 0.24A

● Rotation speed: 9500RPM

● Temperature range: -10℃~70℃

● Service life: 50,000 hours (L10 life at 25℃)

Performance Features:

● Bearing: Maintenance-free double ball bearings

● Rotation direction: Air is discharged from the bracket; counterclockwise when facing the rotor

● Wiring: Red wire for positive power, black wire for GND, blue wire for signal (speed alarm line), with a wire length of about 20cm

● Maximum air volume: 26.8m³/h

● Protection functions: Overload protection, reverse connection protection, and stall lock current protection

● Air pressure: 0~120Pa

● Noise: 41.9dB(A)

● Material: Fiberglass-reinforced plastic shell, PBT casing, PA blades

Functions and Configuration:

Integrates 8 keys, 8 common-cathode LEDs, and 8 common-cathode digital tubes

Adopts TM1638 digital tube driver chip, controlled by only 3 MCU IO ports (STB/CLK/DIO)

Supports electronic commutation; scanning display and key scanning require no MCU intervention, with sample programs provided

4-Bit TM1637 Digital Display Module

Module Features:

● Display: 4-digit common-anode red digital tubes (0.36 inches, with decimal points)

● Grayscale: 8-level adjustable

● Interface level: Compatible with 5V/3.3V

● Installation: 4 M2 positioning holes (diameter 2.2mm)

Technical Parameters:

● Driver chip: TM1637

● Working voltage: 3.3-5.0V

● Current: Maximum 180mA (when all LEDs are on), minimum <0.5mA (shutdown mode)

● Size: 82.3×15.5×18mm (display area: 60.5×14.2mm)

Interface Definition:

● GND: Ground

● VCC: Power supply

● DIO: Data input/output

● CLK: Clock signal

Driver: Maxim MAX7921 Voltage: 3.3 - 5.0V Max current: 180mA (all LEDs on) Min current: <0.5mA (shutdown mode) Length: 82.3mm Width: 15.5mm Hight: 18mm (approx) Display length: 60.5mm Display width: 14.2mm