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Unit DigiClock

SKU:U146

Description

Unit DigiClock is a 2.1-inch 4-digit 7-segment display module with a decimal point ( . ) and a colon ( : ), capable of displaying decimal points or time. It uses the TM1637 driver scheme, with the STM32F030 processor as the driver chip for I2C communication. Users can mount it onto the existing I2C bus of their devices, saving IO resources. The device I2C address can be modified using a 4-position DIP switch. The red LED display supports 8 levels of brightness adjustment. The board is equipped with 4 mounting holes.

Features

  • 4-digit red numeric display
  • Port A interface
  • Programmable I2C address
  • 8 adjustable brightness levels
  • Low power consumption feature
  • Onboard four reserved mounting holes for various mounting methods

Includes

  • 1 x Unit DigiClock
  • 1 x HY2.0-4P Grove Cable (20cm)

Applications

  • Clock display
  • Data display
  • Stopwatch

Specifications

Specification Parameter
Processor STM32F030
Driver Chip TM1637
Communication Interface I2C, addr: 0x30
Power Supply Voltage 5V DC
Net Weight 12.5g
Gross Weight 17.8g
Product Size 50 x 31 x 14mm
Package Size 136 x 92 x 15mm

Power Consumption Test

Environment Current at DC5V
Standby (All Off) 2.5mA
SG1 6.6mA
SG2 10.3mA
SG3 17.5mA
SG4 38.7mA
SG5 42.0mA
SG6 45.7mA
SG7 49.2mA
SG8 (All On) 52.5mA

Schematics

PinMap

Unit DigiClock

HY2.0-4P Black Red Yellow White
PORT.A GND 5V SDA SCL

Datasheets

Softwares

Arduino

UiFlow1

UiFlow2

Protocol

  • I2C Register Table
  • Character Mapping Table

Video

  • UiFlow2 Digi-Clock Unit