• Yocto-I2C

This device is an USB to I2C adapter, it will allow you to query circuits through an I2C bus. If needed, the Yocto-I2C can act as a voltage source to power the external circuit with 1.8V, 3.3V or 5V. The I2C communication can be configured to 1.8V or 3.3V. The Yocto-I2C can act as an I2C master only, not an I2C slave.

The Yocto-I2C can autonomously query and parse I2C data coming from any external I2C sensor and expose measures as if they were coming from a Yoctopuce sensor, with all the inherent advantages: unique identifier, polling, callbacks, data logger. Be aware that this device does not work with applications designed to use a COM port: it is designed to be used with Yoctopuce API only.

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-I2C USB cable to be purchased separately Enclosure to be purchased separately

USB cables and enclosures to be ordered separately.


Product ID:YI2CMK01
Product name:Yocto-I2C
USB connector:micro-B
Protection class, according to IEC 61140:class III
Normal operating temperature:5...40Ѓ
Extended operating temperature1:-30..85Ѓ
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:9032.9000
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)USB-A-MicroB-50, USB 2.0 type A to Micro-B data cable, 50 cm


User manual (HTML)
User manual (PDF)
Product brief
RoHS certificate
Most recent firmware44118 (03/10/2021)
Programming libraries44175 (03/12/2021)
Command line API44175 (03/12/2021)
VirtualHub application44029 (02/26/2021)



  • Brand: Yoctopuce
  • Product Code: YI2CMK01
  • Availability:
  • $79.00