Best Electronics Salon Io Modules in 2026

Terminal Block Breakout Module - for Arduino MEGA-2560 R3. the item has been soldered and assembled.

Terminal block pitch 3.5mm/0.138", wire size range 26AWG to 16AWG, strip length 5mm, screw M2 steel, pin header and cage copper.

With power on LED indicating. red reset button on the side. with a ICSP adapter connect header.

The item has been soldered and assembled. Support for Raspberry Pi 1 Model B+, Pi 2 Model B, Pi 3 Model B, Pi 3 Model B+, Pi 4 Model B, Pi Zero, Pi Zero-W.

Terminal block pitch 2.54mm/0.1", wire size range 28AWG to 18AWG, strip length 4.5mm, screw M1.6 steel, pin header and cage copper.

FR-4 fiber glass PCB, dual copper layers.

Electronics-Salon RPi GPIO Expansion Module, for Raspberry Pi 3, Pi 2, Model B / B+, ZERO and ZERO-W. (For ZERO you must soldered a 2x20pin header in your Raspberry Pi ZERO).

One row GPIO port could change to be three rows GPIO ports

The item has been soldered and assembled, with 4x brass standoffs and 8x screws.

PCF8574T IO Expansion Board

The main resources: PCF8574, I2C interface, the 8-bit parallel

Typical applications: for I / O resource constraints the MCU I / O expansion

based on I2C interface of the I/O expansion module, 2 I/O scalable 8 I/O (can be used at the same time up to 8 PCF8574, expanded to 64 input/output (I/O)

Supports two interface type to access the target board: header or seat;Support I2C bus cascade (through the header, seat docking simulation,, at the same time using a plurality of I2C module)

the I/O resources in short supply and the MCU I/O expansion

DIN Rail Mount 20 Position 30A / 300V Screw Terminal Block Distribution Module.

Terminal Block Pitch 7.62mm/0.3", Strip length 8mm, Screws - M3,steel,Cr3+ Zn plated. Pin header and Cage - Brass.

Wire range 26AWG ~ 10AWG / 4mm square. Rated voltage 300V, rated current 30Amp(per position).

Compute Module DSI display adapter, 22PIN to 15PIN, allowing the Compute Module to use 15PIN DSI displays

Suitable for Compute Module IO Board,connecting with Compute Module 4 IO Board

Suitable for connecting with Waveshare Compute Module IO Board Plus

This Metal Box is designed for Raspberry Pi Compute Module 4 IO Board, Mini computer chassis, robust and dust-proof, nice looking.

Make it easy to build your own Raspberry Pi CM4 mini PC. Precise cut-out with clear label,each cut-out is completely aligned with the connector

Comes with cooling fan, combined with the airflow vent, better heat dissipation

The Compute Module 4 IO Board is a companion board for Raspberry Pi Compute Module 4 (supplied separately).

It is designed for use both as a development system for Compute Module 4 and as an embedded board integrated into end products.

The IO board is designed to allow you to create systems quickly using off-theshelf parts such as HATs and PCIe cards, which might include NVMe, SATA, networking, or USB.

Designed For Raspberry Pi Compute Module 4 IO Board.ONLY COMPATIBLE WITH Raspberry Pi OFFICIAL IO BOARD

Make It Easy To Build Your Own Raspberry Pi CM4 Mini PC

Each Cut-Out Is Completely Aligned With The Connector

DIN Rail Mount Screw Terminal Block Adapter Module for Arduino MEGA-2560 R3 / DUE, with the adapter module, you can easily extend Arduino projects to industrial control applications.

Pitch 3.81mm/0.15" screw terminal block. Terminal block: wire range 26-16AWG, strip length 5mm, Metric M2 slotted screw.

FR-4 fiber glass PCB, dual copper layers. PCB Dimensions: 150mm x 72.5mm(W x L). Module Dimensions: 153mm x 87mm x 45mm (W x L x H).

I2C interface, I / O expansion module, two I / O scalability 8 I / O (up to 8 simultaneous use the PCF8574 expanded to 64 I / O)

Typical application: I / O resource shortage MCU I / O expansion

Main resources: the PCF8574 I2C interface, 8-bit parallel

Mini Base Board For Compute Module 4.Suitable For Evaluating The Raspberry Pi CM4 Or Being Integrated Into End Products.Powerful functions in a credit card sized body

Connecting With Compute Module 4.Standard CM4 Socket And Color-Coded Raspberry Pi 40PIN GPIO Header.Suitable For Compute Module 4 Lite/EMMC Series Module

Compact, Yet Complete.Onboard Multiple Connectors Including:.CSI/DSI/FAN/HDMI/USB/RJ45 Gigabit Ethernet/Micro SD Card Slot/M.2 Slot

for Arduino available library: PCF8575; Working voltage: 2.5 - 5.5VDC

Working current: 100mA(MAX); I2C address: 0x20(default),can be modified by soldering A1 and A2 selection pads.

16 individually addressable pins; Each pin configurable for input or output.

Mini-computer Designed for Raspberry Pi Compute Module 4 (CM4 is NOT included), mini IO board full version, With Waveshare CM4-IO-BASE-B Board and Metal Case with Cooling Fan, fast and easy to build a mini-computer

Rich peripheral connectors: onboard connectors including CSI/DSI/RTC/FAN/HDMI/USB/RJ45 Gigabit Ethernet/Micro SD Card Slot/M.2 Slot

Precise cut-out with clear label： each cut-out is completely aligned with the connector

Designed for Raspberry Pi Compute Module 4 IO Board; 4x USB 3.2 Gen1 ports, USB 3.0 / 2.0 / 1.1 compatible

Flexible power supply options: powered from either PCIe 12V, OR from 12V DC header

Onboard VL805 chip, driver free, plug and play

The PCF8574 IO Expansion Board is used as remote 8-bit I/O expander for I2C-bus. Up to 8 PCF8574 IO Expansion Board can be connected to the I2C-bus, providing up to 64 I/O ports.

PCF8574, I2C interface, 8-bit parallel port

For the lack of I / O resources mcu to I / O expansion

【Parameters】: Working voltage: 2.5 - 5.5VDC; Working current: 100mA(MAX); I2C address: 0x20(default), can be modified by soldering A1 and A2 selection pads.

【Pins】: 16 individually addressable pins; Each pin configurable for input or output.

【Feature】: Open-drain interrupt output pin for input change interrupt.