WP8027ADAM - digital output module with RS485 interface

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

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

32-channel IO expander with 7 analog inputs. It communicates via the USB interface. Numato Lab GP320001

The KAmodPCAL6408 is an 8-bit I/O expander with the PCAL6408A chip by NXP, controlled by the I2C interface.

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 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

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

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

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

Measurement module with RS485 interface. It has two voltage measurement inputs in the range of 0 to 5 V and 0 to 10 V and two current measurement inputs in the range of 0 to 20 mA. Supports the Modbus RTU protocol

BOB-13906

32-channel IO expander with 14 analog inputs. The board communicates via the Ethernet interface. Numato Lab GPETH320001

Module with 16-channel I/O ports expander controlled by the I2C interface. It was based on the MCP23017 chip

DAQ device based on Ethernet communication and equipped with 24 digital inputs/outputs and a counter input. It allows you to control devices via the Internet. Digilent 6069-410-052

KAmod Multiplexer features the CD4051 chip, which is an analog 8-channel multiplexer/demultiplexer. The chip can handle analog signals with an amplitude of up to 20 VPP and provides low on-state resistance. The active channel is selected through a sequence of states on three digital inputs

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.