Feature
I2C interface control, only 2 signal lines are needed to expand 16 I/O ports
I2C communication address can be set, short-circuit A0/A1/A2 solder joint can modify the communication address
Provide two interface types:PH2.0 terminal and pad, support multiple I2C modules in parallel
Onboard level conversion circuit, compatible with 3.3V/5V working level
Provide complete supporting information manual (Raspberry/Micro:bit/Arduino/STM32 sample program and user manual, etc.)
Parameter
Working voltage:5V/3.3V
Control interface:I2C
Interrupt pins:INTA, INTB
Number of expansion I/O ports:16
Product size:38mm ≠ 23mm
Via diameter:2.0mm
Pin Function
I2C interface
VCC
Positive power supply, can be connected to 3.3V/5V power supply
GND
Power ground
SDA
I2C data cable
SCL
I2C clock line
INTA
PA group port interrupt output
INTB
PB group port interrupt output
Package includes
1 x Expansion Module
1 x PH2.0 6PIN cable 20cm
Additional information
| Weight | 0.021 kg |
|---|
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