The Yocto-Maxi-IO device provides 8 digital I/O, electrically insulated from the USB bus. All I/O are 12V-tolerant and can output signals at the 3V or 5V levels without external power source, or up to 12V with an external power source.

Each I/O bit can be configured individually as a simple input, an open-drain input (internal pull-up), a TTL/CMOS-like output or an open-drain output (open collector).

This product is no more available, it has been replaced by the Yocto-Maxi-IO-V2 which has the exact same size but can handle higher voltage and more current per channel.

This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-g, it can even be connected to a GSM network thanks to the YoctoHub-GSM.

Yocto-Maxi-IO Yocto-Maxi-IO Yocto-Maxi-IO

USB cables and enclosure to be ordered separately.

This product is not available anymore.


Manufacturer Product NumberMAXIIO01
Product name:Yocto-Maxi-IO
USB connectormicro-B
Refresh rate250Hz
Input impedance10KΩ
Output impedance180Ω
Max working voltage12V
Supported Operating SystemsWindows (PC + IoT), Linux (Intel + ARM), macOS, Android
Driversno driver needed
API / SDK / Libraries (USB+TCP)C++, Objective-C, C#, VB.NET, UWP, Delphi, Python, Java, Android
API / SDK / Libraries (TCP only)Javascript, Node.js, PHP
Suggested enclosureYoctoBox-MaxiIO-Transp
Made inSwitzerland

Related articles and application examples

 New product: The Yocto-Maxi-IO 

Accessories and related products

Fix-3x8mm-hex, screws and  hex spacers (3x8mm)USB-A-MicroB-30, A to micro-B USB data cable, 30cmYoctoHub-Ethernet, Ethernet-enabled hub for Yoctopuce modules


User manual (HTML)
User manual (PDF)
3D file (STEP)
Last Firmware24473 (06/20/2016)
Library for Javascript29837 (02/02/2018)
Library for PHP30378 (03/15/2018)
Library for Objective C29837 (02/02/2018)
Library for C++29837 (02/02/2018)
Library for C#29837 (02/02/2018)
Library for VisualBasic .NET29837 (02/02/2018)
Library for Delphi29837 (02/02/2018)
Library for Python30378 (03/15/2018)
Library for Java30378 (03/15/2018)
Library for Android30378 (03/15/2018)
Library for Command line29837 (02/02/2018)
Virtual Hub for Windows30378 (03/15/2018)
Virtual Hub for Linux, Intel + ARM30378 (03/15/2018)
Virtual Hub for Mac-OS-X30378 (03/15/2018)

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