EN
Gravity: CH423 I2C 24 Digital IO Expansion Module
CODICE MEPA:
0123188872
BRAND:
DFRobot
CODICE PRODUTTORE:
DFR0979
CODICE SKU:
DF-DFR0979
9,80
€
(escl. IVA)
Descrizione completa
Introduction
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
Documents
Product wiki
Schematics
Dimension
Applications
Driving LED lights
Driving Dot matrix screen
Driving Light Cubes
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