Yoctopuce, USB sensors and actuators

Meet Yoctopuce

Yoctopuce designs, manufactures and sells USB devices to let your computer sit in the real world, not in the cloud. Our USB modules are tiny, easy to install and easy to drive programmatically. Among them you will find:


YoctoHub-Wireless-gHub enabling the connection of 3 Yoctopuce modules directly on a wireless network (802.11g), with a built-in timer.

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Yocto-Light-V2Ambient light sensor (luxmeter), for measuring light intensity from 0 to 65000 lux, with built-in data logger.

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And what's smoking ?

Coke + Mentos + Yoctopuce = Fun

This week, we decided to write a more entertaining post. It's an experiment to be done with children: adding a few Mentos candies into a Coke bottle to literally create a Coke geyser. The difficulty in this experiment is that the reaction happens so fast that one often finds oneself drenched with Coke. We decided to create a device allowing us to trigger this reaction from afar.

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Error message: "Another process is already using yAPI"

Yoctopuce support quite often receives calls for help from customers somewhat lost when they discover this error message: "Another process is already using yAPI". This issue is discussed in the documentation of Yoctopuce products but, this week, we are going to take the time to understand where this error message is coming from and how to avoid it.

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Yoctopuce, get your stuff connected.