FREE SHIPPING ON ORDERS OVER $60
Previous
Previous Product Image

1.47″ 172320 IPS LCD Display Module

Original price was: $ 18.88.Current price is: $ 5.66.
Next

Dual-channel RS485 Expansion Hat for Raspberry Pi 4B

Original price was: $ 52.80.Current price is: $ 15.84.
Next Product Image
-70%

Gravity: CH423 I2C 24 Digital IO Expansion Module

Original price was: $ 10.56.Current price is: $ 3.17.

SKU: DF-DFR0979 Category: Tag:

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.

Connect Diagram

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

    • Specification:

  • 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: 45*37mm/1.78*1.46”

    • Documents:

  • Product wiki
  • Schematics
  • Dimension

    • Product Includes:

  • Gravity: CH423 I2C 24 Digital IO Expansion Modulex1
  • Gravity-4P I2C/UART Sensor cable x1

    • Reviews

    There are no reviews yet.

    Be the first to review “Gravity: CH423 I2C 24 Digital IO Expansion Module”

    Your email address will not be published. Required fields are marked *

    Related products

    Recently Viewed Products

    Type to search

    Shopping cart

    2

    Subtotal: $ 15.31

    View cartCheckout