Vertical Express | PCB, PORT EXPANDER, MERID
MCP23017 I2C 16-bit Port Expander Breakout Board - Ten Pack — PMD Way
Remote MCP23017 I2C 16-bit Port Expander Breakout Board — PMD Way
Raspberry Pi Port Expander HATs | The Pi Hut
Daktronics Port Expander – Serial Tools
I2C Port Expander Board (Arduino code included!) from Celtic Engineering Solutions on Tindie
MikroElektronika - Port Expander Board - MCP23S17 Development Tool
PCF8575 I2C IO Extension Shield Module 16 I/O Port Expander Arduino PI | eBay
Microchip Technology Inc. MCP23017-E/SP I/O Port Expander, 16-Bit, I2C I'face, SDIP-28: Amazon.com: Industrial & Scientific
$3.29 - 16 Port Expander: SPI MCP23S17 - Tinkersphere
Daktronics Port Expander - Graphics Outfitters
Inline MCP23017 I2C 16-bit Port Expander Breakout Board — PMD Way
PCF8574 I2C to 8-bit digital port expander
Port Expander Library
MCP23008 - i2c 8 input/output port expander : ID 593 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Pcf8575 Io Expander Module I2c To 16io Integrated Circuits For Arduino - Instrument Parts & Accessories - AliExpress
I/O Expander - MCP23008 - COM-15099 - SparkFun Electronics
Adafruit GPIO Expander Bonnet - 16 Additional I/O over I2C : ID 4132 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
AK-PCF8575 – I2C 16-bit IO Expander Breakout | Artekit Labs
MAX7321 I2C Port Expander with 8 Open-Drain I/Os | Analog Devices
MAX7313 16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection | Analog Devices
RPI SHD DOUBLER: Raspberry Pi Shield - GPIO port expander at reichelt elektronik
pyControl - Port Expander - LABmaker
SF-3 Port Expander | Celtic Engineering Solutions
Atlas Scientific 8:1 Serial Port Expander
