The Yocto-IO device provides 4 digital I/O, electrically insulated from the USB bus. 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).

Without external power source, each I/O pin can receive or produce a digital signal at 3V or 5V levels (low current).

With an external power source, the device can work with voltages up to 28V and deliver up to 250mA per channel, which makes it possible to drive small relays for instance.

If you need more channels, you can use the Yocto-Maxi-IO-V2.

This device can be connected directly to an Ethernet network using a YoctoHub-Ethernet, to a WiFi network using a YoctoHub-Wireless-n and to a GSM network using a YoctoHub-GSM.

Yocto-IO Yocto-IO Enclosure not included

USB cables and enclosures to be ordered separately.

CHF 61.07

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Product name:Yocto-IO
USB connector:micro-B
Refresh rate:250Hz
Output impedance:<10Ω
Max working voltage:28V
Protection class, according to IEC 61140:class III
USB insulation, dielectric strength (1 min.):1kV
Normal operating temperature:5...40░C
Extended operating temperature1:-30...85░C
Supported Operating Systems:Windows (PC + IoT), Linux (Intel + ARM), macOS, Android
Drivers:Driverless, no driver needed
API / SDK / Libraries:C++ Obj-C C# VB.NET UWP Delphi Python Java Android LabVIEW
API / SDK / Libraries (TCP only):Javascript Node.js PHP
RoHS compliance:RoHS III (2011/65/UE+2015/863)
Suggested enclosure:YoctoBox-Long-Thick-Black
Harmonized tariff code:8542.3190
Made in:Switzerland

1 The extended temperature range is defined based on components specifications and has been tested during a limited duration (1h). When using the device in harsh environments for a long period of time, we strongly advise to run extensive tests before going to production.

Accessories and related products

YoctoBox-Long-Thick-Black, Enclosure for Yoctopuce device (long, thick, black)Fix-2.5mm, screws and spacersUSB-A-MicroB-50, USB 2.0 type A to Micro-B data cable, 50 cmYoctoHub-Ethernet, Ethernet-enabled hub for Yoctopuce modules

Related articles and application examples


User manual (HTML)
User manual (PDF)
Product brief
RoHS certificate
Most recent firmware37128 (09/12/2019)
Library for Javascript42060 (10/15/2020)
Library for PHP42060 (10/15/2020)
Library for Objective C42060 (10/15/2020)
Library for C++42060 (10/15/2020)
Library for C#42060 (10/15/2020)
Library for VisualBasic .NET42060 (10/15/2020)
Library for Delphi42060 (10/15/2020)
Library for Python42060 (10/15/2020)
Library for Java42060 (10/15/2020)
Library for Android42060 (10/15/2020)
Library for LabVIEW42060 (10/15/2020)
Library for Command line35652 (06/05/2019)
Virtual Hub for Windows42060 (10/15/2020)
Virtual Hub for Linux, Intel + ARM42060 (10/15/2020)
Virtual Hub for Mac-OS-X42060 (10/15/2020)

Add a comment 4 comments

1 - cesarcoll Tuesday,april 24,2018 15H14

Is it possible to use Yocto-IO as both a Yocto-button and a Yocto-relay? I'm trying to find a way of connecting it on the manual, but I couldn't find any help regarding the actual connections.

2 - martinm (Yocto-Team)Tuesday,april 24,2018 15H56

@cesarcoll : yes it can be done. The "magic" setting is the open drain parameter. More details in the user manual, 3.5. Configuration, I/O configuration.

3 - icys Tuesday,september 15,2020 9H50

My developing tool is node.js,
I download the User manual (PDF), in P.33 ,
it mentioned "To give it a try, go into one of the example directory (for instance example_nodejs/Doc-Inventory).
You will see that it include an application description file (package.json) and a source file (demo.js)."
But I can't find the files, where can I download them?

4 - mvuilleu (Yocto-Team)Tuesday,september 15,2020 10H03

@icys: This is probably because you have only installed the library as a node package, so you don't see the examples. You can download them from the full zip of Ecmascript library available on https://www.yoctopuce.com/EN/libraries.php

Yoctopuce, get your stuff connected.