Name: Gravity: CH423 I2C 24 Digital IO Expansion Module
Brand: DFRobot
SKU: DFR0979
Price: 81.25 DKK
Availability: OutOfStock

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Gravity: CH423 I2C 24 Digital IO Expansion Module

DFRobot

Varenr. DFR0979

Gravity: CH423 I2C 24 Digital IO Expansion Module

81,25

DKK

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Documents

Introduction

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

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”

Shipping List

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

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products

Gravity: CH423 I2C 24 Digital IO Expansion Module

Documents

Introduction

Features

Specification

Shipping List

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