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:


Yocto-PowerRelayUSB interface driving a tiny electromagnetic relay capable of switching directly mains powered appliances, up to 1250W.

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Yocto-PT100Small device to measure the temperature with very high precision, using a PT100 temperature sensor (2, 3 or 4-wires supported). The device includes a built-in data logger to record measurements. The PT100 connection is electrically isolated from the USB bus.

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And what's smoking ?

Measuring outside air quality

There is no magical sensor able to measure air quality in any circumstance: for each environment, you must select the appropriate sensor. We have already presented in this blog some ways to evaluate inside air quality, in particular to detect stale air because of CO2. We also talked about sensors that you can use to detect toxic or foul smelling gases, used in particular in the industry. Today, we address how to measure the quality of outside air, that is, the air that everyone breathes daily.

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Calibrating a Yoctopuce sensor

Generally, we always try to use sensors which do not require any calibration. But, in some cases, we cannot work around this step, in particular if you need to compensate an external perturbation. All the Yoctopuce sensors have the possibility to automatically apply a correction to the value returned by the sensor. Let's see how it works.

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Yoctopuce, get your stuff connected.