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Gravity CH423 I2C 24 Digital IO Expansion Module

by DFROBOT
This IO expansion board based on the CH423 chip   extends 24 digital ports via I2C , including 8 GPIOs with interrupt functions and 16 GPOs. CH423 has...
25-00016664
Gross Weight: 0.02kg
Warranty: Δεν καλύπτεται με εγγύση απο τον Κατασκευαστή
Company: DFROBOT
Part Number: DFR0979
Made in: China
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DESCRIPTION

This IO expansion board based on the CH423 chip extends 24 digital ports via I2C, including 8 GPIOs with interrupt functions and 16 GPOs.

CH423 has a built-in current drive circuit that offers a 15mA continuous drive current, which can statically drive 24 LED tubes or dynamically drive 128 LEDs. This CH423 I2C to GPIO IO expander is suitable for projects involving LED tubes, dot matrix screens, light cubes, etc.

 

THE PACKAGE INCLUDES

  • Gravity: CH423 I2C 24 Digital IO Expansion Module x1
  • Gravity-4P I2C/UART Sensor cable x1

 

SPECIFICATIONS

Warranty:
Δεν καλύπτεται με εγγύση απο τον Κατασκευαστή
Company:
DFROBOT
Part Number:
DFR0979
Gross Weight:
0.017kg
Made in:
China

EXTRA SPECS

  • Power Supply: 3.3V~5V
  • Static Current: 1mA
  • IO Continuous Driving Current: 15mA
  • Communication: I2C
  • I2C Address: 0x20-0x3F
    (The module occupies I2C address of 0x20-0x3F and cannot work with I2C device in this address range.)
  • Operating Temperature Range: -20℃~80℃
  • Size: 45x37mm

FEATURES

  • 8 general input/output pins
  • 16 general output pins
  • Built-in driving circuit, up to 15mA continuous driving current
  • Applications:
    • Driving LED lights
    • Driving Dot matrix screen
    • Driving Light Cubes

FILES