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...

A screen that consumes (almost) nothing

By martinm, in DIY and Internet of Things, october 07,2016.

The issue with most screens is that they need to be constantly powered to display information. There is however an exception: the e-paper (or electronic paper) technology. This week, we take advantage of this technology to build a connected screen able to work for months on a single battery charge.

Creating a connected night light

By seb, in DIY and Internet of Things, september 21,2016.

IKEA makes pretty ghost-shaped night lights, but the power cable of these "SPÖKA" is very thin. One children has torn this cable and called Yoctopuce for help. At first, we thought that we would simply fix the power cable but, in the end, we decided to improve this night light by transforming it into a "connected night light" with a Yocto-Color-V2 and a YoctoHub-Wireless-SR.

Monitoring electric consumption over GSM

By mvuilleu, in Measures and Internet of Things, september 09,2016.

A few years ago, we explained why the Yocto-Watt is limited to 16A and we gave you some clues on how to measure high currents. But, at that time, we didn't have a simple solution to offer for the most current application: measuring and transmitting the main consumption parameters of a power distribution panel. This gap is today filled and we offer you a detailed solution, easy to implement, based on commercial components.

A quick tutorial on RS485 and MODBUS

By mvuilleu, in Internet of Things and Measures, august 21,2016.

While exchanging with our customers on the best ways to interface industrial controllers, we noticed that nowadays the small secrets enabling you to use an RS485 interface were sometimes unknown from engineers implementing computer or internet based automation. So here is a quick remedial course...