KAmod I2C-IOexp16 - Expander 16 digital I/O lines with MCP23017 chip

8-channel IO expander with 6 analog inputs with 10-bit resolution. Communicates via USB interface. It has compact dimensions, making it suitable for small devices. Numato Lab GP80002-B

A versatile expander supported by the I2C interface, which significantly expands the capabilities of microcontrollers and microcomputers. It is based on the ATSAMD09 microcontroller and comes with default software that can be modified to suit the needs of the project. Adafruit 3657

Module with an IO pin expander based on the TCA9534 system. It allows you to add 8 GPIO pins to an I2C-controlled project. SparkFun DEV-17047

Adapter dedicated to the Nintendo Wii Nunchuck. It allows you to connect the controller to the development board via the I2C interface. Adafruit 4836

I2C multiplexer module with TCA9548A system. Allows you to connect up to 8 devices. The system works like a gateway - it transmits I2C interface data to one of the 8 main busses. This allows you to connect up to 8 devices with the same address. Adafruit 2717

Module with 16 digital outputs. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP8027ADAM

8-channel solenoid driver controlled via I2C. Compatible with 3V/5V logic, features STEMMA QT / Qwiic connectors. Adafruit 6318

A module with a 16-channel input/output port expander controlled by an I2C interface. It was based on the MCP23017 chip and equipped with a Gravity connector. DFRobot DFR0626

KAmod I2C Hub4 enables splitting the I2C bus into four independent outputs with a voltage level translation function, eliminating address conflicts and increasing connection flexibility. The module is intended for projects with multiple I2C devices requiring separation or diverse supply voltages.

KAmod I2C-Mini Out8 enables easy expansion of microprocessor systems with eight switching outputs for voltages and currents typical of low-voltage load control. Compatibility with the I2C bus and the ability to connect up to 8 modules in a single network make it an ideal solution for automation systems, lighting and power control, and other applications requiring flexible control of multiple circuits.

A 24-channel input/output port expander module controlled by an I2C interface. It was based on the CH423 chip and equipped with a Gravity connector. DFRobot DFR0979

16-channel IO expander with 7 analog inputs with 10-bit resolution. Communicates via USB interface. It has compact dimensions, making it suitable for small devices. Version with connector at the top. Numato Lab GP160002

Module with 8-channel PCF8574 IO expander controlled by the I2C interface. Equipped with a STEMMA QT connector. Adafruit 5545

Module with 8 inputs for data acquisition from 0-24 mA analog current inputs. It communicates via RS485 interface and supports Modbus RTU protocol. The board is enclosed in an industrial enclosure. GM1008

8-channel analog acquisition module with default current measurement mode (0–20 mA), designed for industrial applications requiring stable and precise data acquisition. Compatible with current sensors, it supports RS485 communication and the Modbus RTU standard, allowing easy integration with SCADA systems and PLC controllers. Galvanic isolation and noise immunity make it suitable for environments with high EMC requirements. Ideal for industrial process monitoring, environmental parameter measurement, and building automation.

8-channel IO expander with 6 analog inputs with 10-bit resolution. Communicates via USB interface. It has compact dimensions, making it suitable for small devices. Numato Lab GP80002