MCP23017 Module with GPIO Expander - Waveshare 15391

Module with 8 inputs for data acquisition from DS18B20 temperature sensors. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP3066ADAM

8-channel I2C expander module based on the PCA9548 chip. Allows communication with multiple I2C devices that have the same address. Equipped with STEMMA QT connectors. Adafruit 5626

A 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 5663

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

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

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

DAQ device based on USB communication and equipped with 8 counter inputs, 4 PWM outputs and 8 digital IOs. Digilent 6069-410-028

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

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

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 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.

KAmod I2C Hub8 enables splitting the I2C bus into eight independent channels with a voltage translation function, which allows effective integration of multiple devices with repeating addresses. The module is recommended for advanced microprocessor projects with bus separation requirements and diverse voltage levels.

Module with 16-channel IO expander MCP23017 controlled by the I2C interface. Designed for minicomputers Raspberry Pi. Adafruit 4132

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

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

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