WP8027ADAM - digital output module with RS485 interface

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

Micro:Mate is an expansion board for the micro: bit development module. It provides six 3-pin connectors with I/O outputs, a 3.5mm audio jack connector and is powered from a 5V microUSB connector. DFRobot DFR0518

Module with 8 digital inputs and 8 digital outputs. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP8028ADAM

The KAmod I2C-IOexp16 module is an extension equipped with 16 programmable digital lines (inputs or outputs), based on the MCP23017 system and controlled via the I2C bus with the possibility of connecting up to 8 modules thanks to addressing. The module works with a voltage from 2 to 5 V, has an interrupt output and allows for a current flow of up to 20 mA on each line

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

32-channel IO expander with 14 analog inputs. Communicates via the WiFi wireless interface. Numato Lab GPWIFI320001

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

32-channel IO expander with 7 analog inputs. It communicates via the USB interface. Enclosure included. Numato Lab GP320001E

An 4-channel I2C expander module, which is based on the TCA9546A chip. It allows connecting several devices with the same address to a single I2C interface. Adafruit 5664

Module with 16 IO pins and 8 analog inputs. It communicates via the RS485, USB or Ethernet interface and supports the Modbus RTU/TCP protocol. The board is closed in an industrial housing. Numato Lab NLGM1004-A

32-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 on top. Numato Lab GP320002

PCA9555APW,118 is a versatile 16-bit I/O expander with I2C interface and interrupt capability, ideal for applications requiring efficient GPIO extension

8-channel module with voltage analog inputs ranging from 0 to 10 V. After reconfiguration, it enables measurement of voltage in the range from 2 to 10 V or current in the range from 0 to 20 mA or 4 to 20 mA. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in a housing that can be mounted on an industrial rail. Waveshare Modbus RTU Analog Input 8CH (B)

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

128-channel IO expander with 32 analog inputs. It communicates via the USB interface. Numato Lab GP1280001

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.