5PCS IIC I2C TWI SP??I Serial Interface Board Module Port For Arduino 1602LCD - - Amazon.com
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Comimark 1Pcs PCF8575 IIC I2C I/O Extension Shield Module 16 bit SMBus I/O Ports for Arduino
CH341A Programmer USB to UART IIC SPI I2C Convertor Parallel Port Converter Onboard Operating Indicator Lamp Board Module: Amazon.com: Industrial & Scientific
Amazon.com: Waveshare MCP23017 IO Expansion Board I2C Interface Expands 2 Signal Pins as 16 I/O Pins Compatible with 3.3V and 5V Levels : Everything Else
MCP23017 - i2c 16 input/output port expander
![Adafruit MCP23008 - i2c 8 input/output port expander [ADA593]: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/413TH+5OeeL._AC_UF1000,1000_QL80_.jpg "Adafruit MCP23008 - i2c 8 input/output port expander [ADA593]: Amazon.com: Industrial & Scientific")
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Amazon.com: IIC/I2C/TWI LCD 1602 16x2 Serial Interface Adapter Module Blue Backlight Compatible with Ar-duino UNO R3 MEGA2560 : Electronics
I2C Port ADC Module for Raspberry Pi 3/2/B+ Joystick: Amazon.com: Industrial & Scientific
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Juried Engineering MCP23017-E/SP MCP23017 16-Bit I/O Expander with Serial Interface 1.7 MHz I2C Breadboard-Friendly IC DIP-28 (1 Piece): Amazon.com: Industrial & Scientific
Amazon.com: PCF8575 IO Expander Module I2C to 16IO Module : Electronics
