WP3084ADAM - analog input module with RS485 interface

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

Module with 64 IO pins and 32 analog inputs. It communicates via the RS485, USB or Ethernet interface and supports the Modbus RTU/TCP protocol. Numato Lab NLGM1003-A

4-channel PCIe port expander. It can be powered with 12 V via a PCIe connector or an external DC connector. Waveshare PCIe-Packet-Switch-4P

8-channel module with digital inputs/outputs with an operating voltage range from 5 to 36 V. It communicates via the RS485 interface and supports communication within the Modbus RTU protocol. The board is enclosed in a housing that can be mounted on an industrial rail. Waveshare Modbus RTU IO 8CH

Module with analog output 0-20 mA or 4-20 mA. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP3076ADAM

16-channel PoE GPI/GPO module enabling connection of a PC to other electronic circuits via a network. It does not need a separate cable for power and data transmission. It can be controlled via a simple web interface or Telnet. Numato Lab NLGP1001-A

Module with 4 digital inputs and 4 digital outputs. It communicates via RS485 interface and supports Modbus RTU protocol. The board is enclosed in an industrial enclosure. MA01-AXCX4040

Module with 16-channel I/O ports expander controlled by the I2C interface. It was based on the 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

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

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 a 16-channel GPIO expander with the ability to control LEDs. It communicates via the I2C interface. Waveshare AW9523B IO Expansion Board

DFRobot DFR1193 module with the LTC4316 chip enables the simultaneous use of multiple identical I2C sensors without address conflicts. It supports quick configuration via DIP switches or resistors, offering a flexible and reliable solution for IoT, robotics, and automation projects.

16-channel IO expander with 10 analog inputs. The board communicates via the Ethernet interface. Numato Lab GPETH160001

I2C bus amplifier module based on the LTC4311 system. It enables communication via a popular interface over much longer distances while maintaining high transmission speeds. Adafruit 4756

Module with 32 IO pins and 14 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 NLGM1005-A