TM1637 4 Digits 7 Segment Led Display Module

This module is a 12 foot with a clock point, with 4 bits common anode tube (0.36 inch) display module for driver TM1637, only two signal lines can make the MCU control 4 bits 8-segment digital tube. It has 24 hour timing error correction settings, can set every 24 hours error correction, setting range is -9 to 9 seconds. (Note: To make this effective, it must be 24 hours of continuous power).

The TM1637 4 Digits 7 Segment Led Display Module with Clock is an affordable solution for displaying the output data of your Arduino project. Though the data displayed is restricted by numbers still it allows users to display some characters too like A, B, C etc.

Microprocessor data realize the communication with TM1637 by means of two–wire bus interface (Note: The communication method is not equal to 12C bus protocol totally because there is no slave address). When data is input, DIO signal should not change for high level CLK and DIO signal should change for low level CLK signal. When CLK is a high level and DIO changes from high to low level, data input starts. When CLK is a high level and DIO changes from low level to high level, data input ends.

TM1637 data transfer carries with answering signal ACK. For a right data transfer, an answering signal ACK is generated inside the chip to lower the DIO pin at the failing edge of the 8th clock. DIO interface wire is released at the end of the 9th clock

Features:

• TM1637 Driver IC
• Two-wire serial interface (CLK, DIO)
• Input Voltage: 5V
• 4 digit display unit
• Includes a Colon for time based projects
• Ease of multiplexing
• Built-in RC oscillator and Power-on reset circuit
• Luminance adjustment circuit (adjustable 8 duty ratio)

Country of origin :China

Note: The header pins are already soldered to the display.

1x TM1637 4 Digits 7 Segment Led Display Module