New data logger and graphs under Android

By Sébastien Rinsoz, in Programming, Measures and Android, february 17,2014.

Last week, we used the new version of the library to trace a dynamic graph in C# .NET. At that time, we saw that the new Datalogger API and the TimedReport made the work a lot easier. This week, we are going to develop a small Android application that also traces a graph from the datalogger and from current values. But we are going to see that things are a little more complex under Android ...

New data logger and graphs

By martinm, in Programming, february 07,2014.

Not long ago, tracing a dynamic graph with the values of a Yoctopuce sensor required you to have a database to store the history. Indeed, retrieving the data from the data logger was clearly too slow for an interactive application. It so happens that the data logger component of Yoctopuce products has been greatly improved, at both the API and firmware levels. Retrieving data from the data logger is now done in a flash. Demo with a C# example.

Using HTTP Callback with Java

By Sébastien Rinsoz, in Programming, january 31,2014.

Until now, it was possible to use the standard Java library to access a YoctoHub or a VirtualHub, but one working mode was missing: the HTTP callback mode. This mode, previously available for PHP and Nodes.js only, is now available in the beta version of the Java API (v1.10). Let's show how to write a Java Servlet that can interact with a Yocto-Hub.

Weather station: display

By martinm, in Programming, october 31,2013.

Last week, we built a solar weather station which posts its data on xyvely. It's convenient, but it would be simpler to be able to consult the data without having to turn on a computer. This week, we tell you how to show this data on a Yoctopuce display. This requires some programming, but nothing too complex. If you wish, we can do this together...

Yoctopuce now supports Node.js

By mvuilleu, in Programming, october 11,2013.

Good news for Node.js users: we are introducing today a new version of our library, dedicated to this environment. Node.js is an easy-to-install environment that provides an interesting alternative to PHP, and known to be more efficient. You can now use it to drive your Yoctopuce devices as well, including in HTTP Callback mode.