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...

Managing the heating of a chalet with a YoctoHub-GSM-2G

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

A classic example of home automation is to remotely manage the heating system of a second home. In Switzerland, many chalets are equipped with heating systems which are managed by a device connected directly on the phone line. Most of these devices work only on an analog line. If you suppress the phone line or switch it to IP telephony, you must change the device. This week, we are going to see how to replace one of these devices with Yoctopuce modules.

Building a GPS tracking beacon

By martinm, in DIY and Internet of Things, june 24,2016.

Some time ago, we did an experiment that might interest you. Its goal was to check the behavior of the YoctoHub-GSM-3G-EU when it switches from one provider to another one in roaming. We therefore needed a moving YoctoHub-GSM, so we created an autonomous GPS tracking beacon that communicates by GSM.

Comparison of IoT cellular data plans

By mvuilleu, in Reviews and Internet of Things, june 17,2016.

When you design an application for the Internet of Things based on cellular communications, the price of the communications can represent an important part of the total costs. As the market is expanding, there are new subscription packages dedicated to these applications, with varying conditions depending on the provider. Are all the offers equivalent? Is quality in direct relationship to the price? This is what came out of our first investigations...