Product description: AW9523B pins expander - 16 pins I / O - I2C - for Arduino and Raspberry Pi - Waveshare 22132
Waveshare pins expander , based on the AW9523B chip . It extends the functionality of the Arduino or Raspberry Pi with 16 additional I / O pins . It uses the I2C interface for communication. The supply voltage is from 3.3 V or 5 V. The module can be connected via the PH 2.0 connector or solder pads located on the shorter edge of the board. The dimensions of the product are: 38 x 23 mm.
The manufacturer provides examples of espander connections with popular platforms: Arduino, Raspberry Pi, STM32 with libraries.
AW9523B pin expander - 16 pins I / O - I2C .
The pins of the module .
The pins of the module
Waveshare 22132 pins expander based on the AW9523B system, allows you to connect to the microcontroller using the PH 2.0 socket or solder pads:
- VCC - supply voltage (3.3 V or 5 V)
- GND - ground
- SDA - data line of the I2C bus
- SCL - The clock line of the I2C bus
- INT - interrupt output
- RST - reset
Product features
- The module, by using the I2C bus, allows you to obtain 16 I / O ports
- Output interrupt signal (INT) when the state of the input port changes
- I2C address configurable through A0 / A1 jumpers
- Provides two connection options: PH 2.0 connector or solder pads
- It allows you to connect multiple I2C modules in a stack
- Built-in logic level converter: 3.3V / 5V
Terminals expander - Waveshare 22132 .
The expander can obtain 16 I / O pins .
Expander specification
- Supply voltage: 3.3 V / 5 V
- Standby current: <0.1 a="" li="">
- Communication bus: I2C
- Number of I / O pins: 16
- Working temperature: -40 ° C to 85 ° C
- Dimensions: 38 x 23 mm
Kit contents
- AW9523B pins expander - 16 pins I / O - I2C - for Arduino and Raspberry Pi - Waveshare 22132 - 1 pc.
