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To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the IO Modules in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
No. 1
Waveshare Industrial 8-Ch Digital Input & Output Module, DC 7~36V Wide Voltage Power Supply, Modbus RTU Protocol, Multiple Isolation Protection Circuits, Rail-Mount Support
- Configurable device address (1~255), multi devices can be cascaded on RS485 bus
- Onboard voltage regulator, supports 7~36V wide range power supply. Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
- Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference
- Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic
- Supports passive and active digital input, with bi-directional optocoupler isolation, built in debouncing algorithm. Supports DI/DO linkage control or DO toggle control
- The output utilizes Darlington transistors with optocoupler isolation, provides stronger driving capability with up to 500mA sinking current, built in flyback diode protection
- Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the output for a while and then close it automatically
- Rail-mount case design, support stacking combination, easy to install and safer to use
- Multiple LEDs for indicating the input & output status, MCU status and signal transceiving status
$31.99
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No. 3
XYGStudy Compute Module 5 IO Board Development Platform and Reference Base-Board for CM5
- Part Number: Compute Module 5 IO Board
- Official Raspberry Pi Compute Module 5 IO Board, A Development Platform And Reference Base-board Designed For CM5, Suitable For All Variants Of Compute Module 5
- Supports M.2 NVMe Solid State Drive. Faster reading/writing speed compared to the Micro SD slot of Raspberry Pi, greatly improving reading/writing efficiency of the system or files, support booting Raspberry Pi from NVMe Solid State Drive
- Compatible with multiple M.2 Drive sizes, supports 2280 / 2260 / 2242 / 2230 form factors
No. 4
ACEIRMC 3pcs PCF8575 IO Expander Board Module I2C to 16IO IIC I2C I/O Extension Shield Module 16 bit SMBus I/O Ports for Arduino R3 (3pcs)
- 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.
- Open-drain interrupt output pin for input change interrupt.
- New Open-Smart PCF8575 IO Expander Board Module I2C to 16IO for Arduino for Arduino R3 and other MCU to control simple relay, buzzer, button, led.
$9.99
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No. 5
for Raspberry Pi Compute Module 4 IO Board Development Platform and Reference Base-Board Design for CM4 with Cables @XYGStudy
- Part Number: Compute Module 4 IO Board with Cables -- Compute Module 4 Acce A
- Raspberry Pi Compute Module 4 IO Board, a development platform and reference base-board design for CM4
- 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. The major user connectors are located along one side to make enclosures simple.
- Compute Module 4 IO Board also provides an excellent way to prototype systems using the Compute Module 4.
- Package Contains: Compute Module 4 IO Board x1, USB-A to micro-B cable 1.2m x1, RPi Zero V1.3 Camera Cable 15cm (CSI adapter) x1, Power supply 12V 2A x1, CM-DSI-ADAPTER x1.
$64.99
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No. 6
QCCAN 4PCS PCF8575 IO Expander Module I2C to 16IO Integrated Circuits
- available library: PCF8575; I2C address: 0x20(default),can be modified by soldering A1 and A2 selection pads.
- PCF8575 module allows the user to expand up to 16 I/O using only two I/O for control! The PCF8575 is controlled through an I2C interface and features 16-bits of quasi-bidirectional input/output pins.
- On board 3.3V level converter circuit, if you do not solder VCC-VDD pad, the PCF8575 level is 3.3V. If you solder it, the level will be the same with VCC.
- Working voltage: 2.5 - 5.5V DC; Working current: 100mA(MAX);Application: Great for UNO R3 and other MCU to control simple relay, buzzer, button, led.
- 16 individually addressable pins.Each pin configurable for input or output.Open-drain interrupt output pin for input change interrupt.
No. 7
XICOOLEE CAT9555 IO Expansion Module Board I2C Interface, SMBus I/O Port, 16 bit Parallel GPIO Expander, with Pre-soldered Header
- 5V tolerant I/O, high drive capability of I/O ports
- 400 kHz I2C bus compatible
- Polarity inversion register, active low interrupt output
- Internal power−on reset
- Low stand−by current
No. 8
waveshare Compute Module 5 IO Board, Compatible with All Variants of Raspberry Pi CM5, with PoE Feature, Single Board Only
- Standard CM5 socket and Raspberry Pi 40PIN GPIO header suitable for all variants of Compute Module 5
- Providing both network connection and power supply for your Raspberry Pi in one cable
- Faster reading/writing speed compared to the TF card slot of Raspberry Pi, greatly improving reading/writing efficiency of the system or files, support booting Raspberry Pi from NVMe Solid State Drive
- ONboard Connectors Including MIPI / M.2 / HDMI / USB / ETH / TF Card Slot.each cut-out is completely aligned with the connector
- Rich WiKi Resources: We provide official Wiki resources, please contact us for more information.
$42.99
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No. 9
Waveshare Power Over Ethernet PoE Board for Raspberry Pi Compute Module CM3/ CM3L/ CM3+/ CM3+L
- The Compute Module PoE Board is a development board which you can plug a Raspberry Pi Compute Module into, and make use of the resources of Pi more flexibly. With the PoE (Power over Ethernet) feature, and versatile onboard peripheral interfaces, it is suitable for evaluating the Raspberry Pi compute module, also is an ideal choice for end products.
- Raspberry Pi GPIO header, for connecting sorts of Raspberry Pi HATs 10/100M auto-negotiation Ethernet port, with PoE enabled 4x USB ports, allows connecting more USB devices 2x CSI camera interfaces Onboard HDMI / DSI interfaces for connecting displays
- Onboard USB TO UART, for serial debugging Cooling fan interface, auto run on power up OR controlled by IO pins Adopts isolated SMPS (Switching Mode Power Supply)
- Power supply: micro USB port / PoE Ethernet port PoE power input: 37V ~ 57V DC in PoE power output: 5V 2.5A DC out
- Network standard: 802.3af PoE standard Dimensions: 114mm × 84.4mm Mounting hole size: 3.2mm
$45.99
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No. 10
for Raspberry Pi Compute Module 4 IO Board,Mini Base Board (A) Lite Version with Standard CM4 Socket and Color-Coded Raspberry Pi 40PIN GPIO Header Onboard CSI/DSI/FAN/HDMI/USB/RJ45 Connectors
- 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
$26.87
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Last update on 2025-04-25 / Affiliate links / Images from Amazon Product Advertising API