Features: - The module is a 12-pin display module with the timing of the 4-bit common anode red letter digital tube (0.36 inches), the driver chip is TM1637, only two signal lines can make the MCU control the 4-bit 8-segment digital tube. - Digital tube 8 level grayscale adjustable. - The control interface level can be 5V or 3.3V. Supply Voltage: 3.3 - 5.5V, Typical Value 5V Operating Current: Less Than 80mA (5V) Control Interface: There are four pins (GND, VCC, DIO, CLK), GND is ground, VCC is power supply, DIO is data input and output pin, CLK is clock signal pin. Digital Tube: 4-digit, 0.36 inch digital tube with score point, scarlet letter highlighted. Positioning Hole: 4 M2 screw positioning holes, the aperture is 2.2mm, so that the module is easy to install positioning, realize the combination between modules. Package Include: 5 x TM1637 LED Display Module
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