null

Same Day Shipping if Order Placed by 2pm

GST Invoice on All Orders

Assured Quality, 100% Genuine Components

Gravity: CH423 I2C 24 Digital IO Expansion Module

DFRobot

No reviews yet Write a Review
SKU:
147-DFR0979
Manufacturer Part Number:
DFR0979
₹495.60 inc. GST
₹420.00 ex. GST
₹495.60 inc. GST
₹420.00 ex. GST
17 people looking at this.

Description

The CH423 is a chip that can be used to expand the number of digital input/output (I/O) ports available on a microcontroller or computer. It does this by using the I2C communication protocol, which allows multiple devices to be connected to the same two-wire interface.

The CH423 chip has 24 digital I/O ports, including 8 general-purpose input/output (GPIO) ports with interrupt functions and 16 general-purpose output (GPO) ports. The chip also includes a built-in current drive circuit that can provide a continuous drive current of 15mA, which is sufficient to drive 24 LED tubes or dynamically drive 128 LEDs. This makes the CH423 a good choice for projects that involve LED displays or other applications that require a large number of digital outputs.

To use the CH423 chip in a project, you will need to connect it to a microcontroller or computer using the I2C bus, and write code to control the I/O ports. The CH423 I2C to GPIO expansion board you described is likely a PCB (printed circuit board) that includes the CH423 chip and the necessary connectors and circuitry to interface with an I2C bus. It should be easy to use in projects involving LED tubes, dot matrix screens, light cubes, and other applications that require a large number of digital outputs.

Features
  • 8 general input/output pins
  • 16 general output pins
  • Built-in driving circuit, up to 15mA continuous driving current
Package Contents
  • Gravity: CH423 I2C 24 Digital IO Expansion Module x1
  • Gravity-4P I2C/UART Sensor cable x1
Resources

Connection Diagram

 

Technical Specifications

Brand:
DFRobot
Power Supply:
3.3V~5V
Static Current:
1mA
IO Continuous Driving Current:
15mA
Interface:
I2C
I2C Address:
0x20-0x3F
Operating Temperature Range:
-20 ~ 80C
Size:
45x37mm

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.