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A Yoctopuce web based app to draw sensors graphs

By martinm, in Internet of Things, november 18,2016.

The Yoctopuce business model is rather simple: Yoctopuce designs, manufactures, and sells electronic modules, provides the libraries necessary to exploit them, as well as support to help customers realize their projects. However, Yoctopuce doesn't provide turn key solutions. Nevertheless, Yoctopuce support regularly receives requests of the type: "How can I display a graph with the values of a Yoctopuce sensor?", or "How can I obtain the values of a Yoctopuce sensor in the CSV format?". So we decided, once will not hurt, to offer you a ready to use application to trace graphs with the values of Yoctopuce sensors.

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IoT: Should you be afraid of Yoctopuce devices ?

By mvuilleu, in Internet of Things, november 11,2016.

For a while, researchers have been publishing almost every week new security breaches linked to bad design or configuration errors in the Internet of Things: unprotected security cameras, connected objects serving as Trojan horses, and so on. As we also manufacture network modules enabling you to build connected systems, we must take stock of the situation, so you know what to expect.

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Controlling Yoctopuce modules from MQTT

By seb, in Programming, november 05,2016.

YoctoHubs can automatically publish sensor values on a MQTT broker, as we illustrated in a previous post on this topic. However, for scalability and security reasons, YoctoHubs cannot use MQTT messages to drive connected modules. There are however circumstances where it might be desirable to integrade Yoctopuce command devices in an existing MQTT architecture. In this case, it is enough to use a small gateway between the MQTT protocol and the Yoctopuce modules. This is what we are going to do this week.

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Free PHP hosting and Yoctopuce API

By martinm, in Internet of Things, october 28,2016.

A noticeable characteristic of Yoctopuce modules is that you can drive them from a server thanks to the HTTP callback API allowing you to work around NAT filters. Obviously, this is truly interesting only if you have a PHP, Java, or ecmascript server. Well, this week we tested some free PHP hosts and we show you in details how to configure them...

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Measuring outside air quality

By mvuilleu, in Measures, october 21,2016.

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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